Patreon for perfumery creators — 2026 edition

Aromatic molecule families terpenes aldehydes esters lactones musks phenylpropanoids, concentration grades extrait EDP EDT carrier selection, olfactory pyramid log P volatility and substantivity, extraction methods steam distillation enfleurage hexane supercritical CO₂, accord structure chypre fougère oriental Iso E Super Ambrox Hedione, IFRA skin safety restrictions, and the Apple Tax.

Perfumery Patreons retain subscribers when they document the technical parameters that fragrance-reveal videos and finished-bottle photographs structurally cannot convey: the identity of every aromatic material by chemical name and CAS number (not trade name alone, which often covers proprietary blends or varies between suppliers), the concentration of each material in the accord as a percentage by weight, the extraction method for every natural ingredient and why it determines olfactory character and skin safety, the extraction protocol for accords (dilution math from stock, carrier selection, concentration grade target), and the temporal performance of the finished formula evaluated at four timepoints on a smelling strip. The audience for this documentation is heavily iOS — fragrance YouTube runs 70–82% iOS, Instagram perfumery 78–88% iOS — making the Apple Tax very expensive and the web-billing toggle more financially significant than in almost any other craft niche.

1. Aromatic molecule families and structure-activity relationships

Every aromatic material in a formula can be assigned to one or more chemical families whose structural features predict fragrance character, evaporation rate, and skin safety profile. Knowing which family a material belongs to is the first step toward understanding why it behaves the way it does in a composition.

Terpenes are built from isoprene units (C₅H₈) and are the most abundant aromatic compounds in the natural world. Monoterpenes (C₁₀) are the lightest and most volatile: d-limonene (MW 136.23, BP 176°C) gives the sharp, bright, citrus character to bergamot, lemon, and orange essential oils and is the most abundant terpene produced commercially; linalool (3,7-dimethyl-1,6-octadien-3-ol, MW 154.25, BP 198°C) gives the floral-lavender character shared by coriander, bergamot, many rosewood varieties, and most lavenders, and is used in synthetic form at enormous commercial scale in laundry detergents, personal care, and fine fragrance; geraniol (MW 154.25, BP 230°C) contributes the central rose-petal quality distinguishable from linalool by its slightly warmer, fruitier character; citronellol (MW 156.27, BP 225°C) adds a softer, slightly dewy rose-geranium quality and is a major component of rose and geranium essential oils. Sesquiterpenes (C₁₅) are heavier and less volatile: farnesol (MW 222.37) contributes a delicate floral-woody quality and is used as a substantivity enhancer in jasmine accords; nerolidol (MW 222.37) is slightly more citrus-rosy.

Aldehydes (functional group —CHO) contribute soapy, metallic, waxy, or fatty-floral characters that are unusual in nature but central to the history of twentieth-century perfumery. The C9–C12 aliphatic aldehydes used at trace concentrations (0.1–1%) give a characteristic abstract-floral metallic quality: nonanal (C9 aldehyde, MW 142.24, BP 193°C) is rose-fatty-waxy; decanal (C10, MW 156.27, BP 208°C) gives orange peel and waxy facets; undecanal (C11, MW 170.29) provides the soapy-floral character associated with Chanel No. 5, where a blend of C10–C12 aldehydes was used by Ernest Beaux in 1921 at approximately 1% total aldehyde to give an abstract metallic register impossible to obtain from any single flower. Document aldehydes by carbon chain length and concentration separately from floral materials because their threshold concentrations are extremely low — a doubling of C11 aldehyde from 0.05% to 0.10% in a formula can completely shift the character of the top note from floral to soapy.

Esters are formed by the condensation of an acid and an alcohol and are responsible for most fruity and many floral aromatic characters. Linalyl acetate (MW 196.29, BP 220°C) is the dominant ester in bergamot (approximately 35–45%) and in lavandin (>40%) and contributes a fresh bergamot-lavender-floral character that is one of the most recognizable top notes in classic eau de cologne and chypre compositions; benzyl acetate (MW 150.17, BP 215°C) contributes a jasmine-like sweet floral quality and is the dominant ester in ylang ylang absolute; isoamyl acetate (banana-pear, BP 142°C) is a fast-evaporating top note; geranyl acetate and neryl acetate add fruity-floral contributions to citrus and rose accords. The ester functional group is generally less irritating than the corresponding aldehyde or free acid, which is one reason many IFRA-compliant reformulations substitute esters of restricted alcohols or aldehydes.

Lactones are cyclic esters and include some of the most characteristic fruity-creamy and musk materials in perfumery. Gamma-decalactone (MW 170.25, BP approximately 102°C at 3 mmHg) smells strongly of ripe peach-coconut-cream and is a key component of peach absolute and peach fragrance compounds. Gamma-nonalactone contributes a coconut-milky quality used in oriental compositions. Coumarin (benzopyranone, MW 146.14, melting point 71°C) is a large-ring lactone with a warm tonka-bean-new-mown-hay character that is the defining base-note material of the fougère accord family and was one of the first synthetic aromatic materials used in perfumery (Houbigant Fougère Royale, 1882). Macrocyclic lactones such as Habanolide (11-oxacyclohexadecen-2-one) and Ethylene Brassylate (the ester of brassylic acid and ethylene glycol, MW 270.37) are among the most powerful and tenacious musk materials available; their very large ring size gives them a soft, clean, skin-like musk character and extremely low vapor pressure, allowing them to be detected on skin for 24–48 hours at trace concentrations.

Musks form a critical functional category for base-note fixation and skin affinity, but not all musks are structurally equivalent. Nitro musks (musk ambrette, musk tibetene) were the original synthetic musks discovered in the late nineteenth century; most have been restricted or banned due to skin sensitization, phototoxicity, and environmental persistence in aquatic systems. Polycyclic musks (Galaxolide/HHCB, MW 258.4; Tonalide/AHTN) are still widely used but face increasing regulatory scrutiny in the EU for suspected endocrine disruption and aquatic persistence. Macrocyclic musks (Habanolide, Ambrettolide, Ethylene Brassylate, Helvetolide) are the current preferred category for skin-contact fine fragrance: they biodegrade more readily, have excellent skin affinity, and are IFRA-compliant at normal usage concentrations. Document musks by INCI or IUPAC name plus CAS number — fragrance trade names for musks are notoriously non-specific and cover different underlying chemistry between manufacturers.

Phenylpropanoids are biosynthetically derived from the amino acid phenylalanine and include some of the most familiar aromatic compounds in natural materials. Eugenol (4-allyl-2-methoxyphenol, MW 164.20, BP 254°C) gives the warm spicy-clove quality present in clove bud oil, carnation absolute, cinnamon bark, ylang ylang, and basil; it is restricted by IFRA in category 4 (fine fragrance applied to skin) at a maximum of 0.5% due to its established skin sensitization potential. Isoeugenol (same MW as eugenol, different double bond position between the allyl side chain) has a warmer, more floral-spicy-clove character and is restricted even more severely than eugenol. Vanillin (MW 152.15, vanilla’s principal odorant, a phenolic aldehyde) contributes the familiar warm sweet-cream quality of vanilla and is also present in Bourbon vanilla absolute, benzoin resinoid, and tolu balsam; ethyl vanillin (MW 166.17) is three to four times more potent per unit weight than vanillin and is used at lower concentrations to achieve the same olfactory effect with less material.

2. Fragrance concentration grades and carrier selection

The fragrance concentration grade is the ratio of aromatic compounds to carrier by weight in the finished product. These grades determine not only the intensity and longevity of the finished fragrance but also the economics of each bottle: the raw material cost of an extrait is three to five times that of an EDT at the same volume.

Extrait de parfum (also called perfume extract or pure parfum): 20–40% aromatic compounds by weight in a carrier that is almost always anhydrous or near-anhydrous ethanol. Above 20% total aromatic compound concentration, water in the carrier may cause haziness (hydrophobic materials precipitate when the ethanol-water ratio shifts); anhydrous ethanol (200 proof, 99.9% pure) eliminates this risk. Extraits have the longest dry-down and the most complex base-note development because sufficient concentration is present for slow-evaporating base materials to register distinctly on skin.

EDP (eau de parfum): 15–20% aromatic compounds. This is the standard grade for most artisan and high-end commercial fragrances today. The addition of 5–10% water to the ethanol reduces the harshness of the initial alcohol blast slightly but requires that all materials remain soluble at this dilution; heavier resinoids and absolutes may need a solubilizer or higher alcohol content.

EDT (eau de toilette): 8–15% aromatic compounds. This grade is the most common in mass-market commercial fragrance. The larger carrier proportion means faster evaporation of the alcoholic base and a more prominent but shorter-lived top-note burst compared to extrait.

EDC (eau de Cologne) and splash: 3–8% (EDC) and 1–3% (splash or aftershave). Classic Cologne formulations (4711, original Eau de Cologne) are extremely citrus-forward with these lower concentrations because citrus terpenes evaporate so quickly that the entire olfactory experience is over within 20–30 minutes; the formula compensates by using very high concentrations of citrus essential oils within the small aromatic-compound percentage.

Carrier selection affects final character as much as concentration grade. Standard 96% denatured ethanol is the most common carrier: fast-evaporating, produces a strong initial burst, and is the default for spray application. Anhydrous ethanol is preferred for extraits with high resin content. Isopropyl myristate (IPM, log P approximately 7, MW 270.45, essentially odorless, low viscosity, non-greasy feel, LP approximately 7 Pa at 25°C) is the standard oil-based carrier for roller-ball formats: it does not require a denaturant, evaporates very slowly from skin (producing an entirely different dry-down character from the same formula in ethanol), and is compatible with most aroma chemicals and naturals at working concentrations. Fractionated coconut oil (FCO, caprylic/capric triglycerides) is slightly more viscous than IPM and somewhat better at suspending highly polar aromatic molecules. Document for each batch: carrier type, concentration of aromatic compounds by weight, ethanol proof and denaturant if applicable, and the scale of the batch in grams.

Dilution math: the most practical approach is to prepare 10% dilutions of each individual aromatic material in ethanol or IPM (this is your working stock), then build your accord as a blend of these stocks. If you want a final formula at 20% aromatic concentration and your entire accord represents 100% of the aromatic materials, you add enough carrier to bring the aromatic fraction to 20% of the total weight. The formula record should show each material by name, CAS number, the volume or weight of the 10% stock used, the calculated weight of the neat material that represents, and the percentage of neat material in the final accord. This documentation is exactly what a patron who wants to recreate or modify the accord needs to do so.

3. The olfactory pyramid, log P, and substantivity

The olfactory pyramid is a temporal map of fragrance development that connects molecular volatility to the olfactory experience over time. Understanding the underlying physical variables allows a formulator to predict, document, and explain the dry-down of any formula at a level that is actually useful to patrons.

Top notes are the first materials perceived after application. They have the highest vapor pressure and the fastest evaporation from the skin surface. A rough proxy for volatility in the class of materials commonly used in perfumery is the octanol-water partition coefficient log P: materials with log P below approximately 2.5 combined with MW below approximately 200 tend to evaporate within 15–30 minutes on skin. Most citrus terpenes (limonene log P 4.5) are exceptions: their very low MW and therefore high vapor pressure despite their relatively high log P makes them behave as top notes regardless. On a smelling strip evaluated at room temperature, a top note that has fully dissipated within 30 minutes is correctly documented; one that persists to the 2-hour evaluation is either more substantive than expected or was used at very high concentration.

Heart notes (middle notes) become apparent as the top notes dissipate and form the core olfactory character of the fragrance during the first 30 minutes to 2 hours. Log P approximately 2.5–4.0 is a reasonable range for classical heart-note terpene alcohols and esters. Linalool (log P 2.97) is a true heart-note material. Geraniol (log P 3.28) lasts slightly longer. Phenylethanol (log P 1.36) presents a paradox: despite its low log P suggesting it should evaporate quickly, it persists on skin because its very high water solubility and strong hydrogen bonding capacity mean it dissolves preferentially in the aqueous layer at the skin surface rather than evaporating freely into the air; this demonstrates why log P is a proxy, not a precise predictor, and why empirical strip evaluation at defined timepoints is irreplaceable.

Base notes persist on skin for hours to days. Log P above 4.0, very low vapor pressure, and high MW all contribute to substantivity. α-Santalol (sandalwood’s characteristic molecule, log P approximately 4.0) is warm, creamy, woody, and persistent for 4–8 hours on skin. Macrocyclic musks (Ethylene Brassylate, log P approximately 5.5) can be detected on unwashed fabric after 48–72 hours. Substantivity can be measured formally by GC headspace analysis of a smelling strip at multiple timepoints — sampling the vapor phase above the strip and quantifying the remaining material by comparison to a standard. For a Patreon creator without GC access, the practical substitute is a blind panel evaluation: three strips evaluated by at least two different people at 0 min, 30 min, 2 h, and 24 h, with written notes on which materials are perceptible at each point. This four-timepoint evaluation record is the substantivity documentation deliverable.

Olfactory fatigue is the adaptation of olfactory receptors to sustained exposure: after approximately 10–15 minutes of continuous evaluation, perceived intensity of a given material drops dramatically even though concentration is unchanged. The practical protocol is to evaluate no more than 5–8 materials or accords per session, separated by fresh-air recovery periods, and to include a known reference strip (a single familiar material at known concentration) to recalibrate perception before each evaluation. Document: the order of evaluation, the reference material used, the ambient temperature (volatility varies significantly between 18°C and 28°C studio conditions), and whether strips were evaluated on skin or in air only.

4. Extraction methods for natural aromatic materials

Natural aromatic materials enter a formula as essential oils (obtained by distillation or expression), absolutes (obtained by solvent extraction), CO₂ extracts (obtained by supercritical fluid extraction), or tinctures (alcoholic extraction). Each method produces a different olfactory and chemical profile from the same plant material, making extraction method documentation an essential variable.

Steam distillation is the most common industrial extraction method. Water steam is forced through plant material in a still (either water distillation, where material is immersed in boiling water, or steam distillation, where steam is injected from below); volatile aromatic compounds co-distillate with steam according to Dalton’s law of partial pressures; the combined vapor stream is condensed and the oil layer separated from the hydrosol. Yield figures are production data: Damask rose (Rosa damascena, harvested by hand at dawn before the volatile top notes evaporate, in Grasse and Bulgaria) requires 3–5 metric tons of freshly picked petals to produce one kilogram of rose otto, yielding approximately 0.02–0.04% by fresh weight. Lavender (Lavandula angustifolia) yields 0.5–1.0% essential oil at harvest. Bergamot fruit peel yields approximately 0.5–0.6%. Eucalyptus globulus yields 1–3%. Because distillation involves sustained heat, heat-labile molecules (certain delicate aldehydes, easily isomerized terpenes) are modified during processing: steam-distilled rose has a slightly different character than the living flower because linalool, geraniol, nerol, and citronellol remain largely intact but some of the trace carbonyl and ester molecules that define the flower’s full complexity are lost or altered.

Cold press (expression) is the method used for all citrus peel oils. Rotating drums with metal pins or rasps abrade or puncture the oil sacs embedded in the peel’s flavedo layer; the released oil and cell sap are centrifuged to separate. No heat is applied. Cold press preserves all heat-labile molecules, including furocoumarins such as bergapten (5-methoxypsoralen, MW 216.19) present in bergamot. Bergapten is a photosensitizer: UV radiation in the presence of bergapten on skin causes oxidative damage and hyperpigmentation. IFRA restricts bergapten-containing bergamot in leave-on products. Bergapten-free (BF) bergamot essential oil, from which the furanocoumarin fraction has been removed by molecular distillation, is the standard for skin-contact fine fragrance applications. Document which form of bergamot is used in every formula where bergamot appears in the leave-on position.

Enfleurage is a pre-industrial fat-absorption method still used by artisan natural perfumers for heat-sensitive flowers. A glass plate is coated with purified fat (cold process: deodorized coconut oil, shea butter, or historically lard); fresh flower petals or blossoms are spread on the fat surface; volatile aromatic compounds from the flower diffuse into the fat over 12–48 hours; petals are removed and fresh petals added; the cycle repeats for several weeks until the fat is saturated (this saturated fat is called pomade). The pomade is then washed with ethanol repeatedly to extract the aromatic fraction; filtering removes insoluble waxes; reducing the ethanol under vacuum yields the absolute. Enfleurage captures delicate high-molecular-weight molecules that steam distillation destroys (the characteristic character of fresh tuberose and fresh jasmine is much more faithfully represented in enfleurage absolute than in steam-distilled oil). The method is extremely labor-intensive and the resulting absolute is correspondingly expensive.

Hexane (solvent) extraction is the dominant industrial method for flower absolutes. Plant material is immersed in food-grade hexane (BP 68.7°C) or another hydrocarbon solvent; the solvent dissolves both volatile aromatic compounds and co-soluble non-aromatic components (waxes, chlorophylls, pigments, fatty acids from cuticular wax). Evaporating the solvent under reduced pressure yields concrete (a waxy semi-solid with aromatic compounds trapped in a wax matrix). The concrete is washed with cold ethanol: the aromatic fraction dissolves in ethanol; the waxes do not. Filtering the chilled ethanol-wax mixture removes the waxes; evaporating the ethanol under reduced pressure yields the absolute. Absolutes are more complete chemical representations of the plant source than steam-distilled essential oils because they include non-volatile molecules that steam cannot carry. Jasmine absolute, rose absolute, violet leaf absolute, and most floral extracts used in modern fine fragrance are obtained by hexane extraction. Document: the plant source, country of origin, lot number, and extraction method (absolute vs essential oil vs CO₂) for every natural material in a formula, because these variables determine both olfactory character and IFRA compliance.

Supercritical CO₂ extraction uses CO₂ above its critical point: above 31.1°C critical temperature and 72.8 atm critical pressure, CO₂ exists as a supercritical fluid with the diffusivity of a gas and the solvating power of a liquid. At these conditions CO₂ penetrates plant material rapidly and dissolves aromatic compounds with minimal thermal exposure — most extraction runs at 40–60°C compared to the 80–110°C steam temperatures in distillation. Reducing pressure below the critical point returns CO₂ to the gas phase, leaving the extract behind with near-zero solvent residue. Selectivity can be tuned by varying temperature and pressure: low-pressure CO₂ extracts are enriched in volatile molecules (similar to essential oil); high-pressure extracts include heavier molecules. CO₂ extracts of rose, cardamom, vanilla, and ginger often have the most complex and natural-smelling olfactory character of any available extract from those plants, because heat-labile molecules survive intact. The primary limitation is capital cost: supercritical extraction equipment is expensive, limiting CO₂ extracts to premium specialized applications.

5. Accord structure — chypre, fougère, oriental, and key aromachemicals

An accord is a coherent blend of aromatic materials that produces a unified olfactory impression greater than the sum of its parts. Classical accord families provide a structural vocabulary for formulation and communicate the design intent of a composition to patrons with fragrance literacy.

Chypre (from the French for Cyprus) is the defining accord family of twentieth-century structured perfumery: bergamot (citrus-fresh top) over a floral heart (rose, jasmine) over a base of labdanum (warm resinous balsamic), oakmoss, and patchouli. The defining creation is Coty’s Chypre (1917). The critical base-note material is oakmoss absolute (Evernia prunastri), which contributes a deep, earthy-green, marine-mossy character that is irreplaceable in classical chypre structure. However, oakmoss contains atranol and chloroatranol (hydroxy-benzaldehyde derivatives), both potent skin sensitizers identified as significant causes of fragrance contact allergy. IFRA’s 2011 amendment restricted oakmoss to effectively near-zero concentrations in leave-on products (category 4: 0.001%), which ended the classical chypre formula as it had been made for ninety years. Modern chypre substitutes use Iso E Super, Ambrox, and various moss-mimicking synthetic compounds to approximate the character without the restricted materials.

Fougère (French for fern) is the accord built on lavender (herbal-floral top), coumarin (warm tonka-bean-hay base), and the structural linking of oakmoss (earthy note binding top to base). The prototype is Houbigant’s Fougère Royale (1882), the first fine fragrance to use a synthetic aromatic compound (coumarin, synthesized by Perkin and Tiemann in the 1870s). Modern fougères substitute oakmoss with Iso E Super and synthetic moss materials; the lavender-coumarin-musky skeleton survives in most commercial masculine fragrances.

Oriental accords center on vanilla (vanillin, ethyl vanillin), warm resins (benzyl benzoate, labdanum), and musks. Guerlain’s Shalimar (1925) is the archetype: bergamot top over powdery-vanilla-iris heart over labdanum-benzyl benzoate-civet base. Documentation of an oriental-family composition requires identifying the musk type used (macrocyclic, polycyclic, or nitromusk), because both the olfactory character and the IFRA compliance picture depend entirely on which specific musk is present.

Iso E Super (4-(2,6,6-trimethyl-1-cyclohexen-1-yl)-4-methyl-2-pentanone, CAS 54464-57-2, MW 204.31) is a key single-molecule material in modern perfumery: it has a transparent cedar-woody character that seems to add depth without adding a recognizable specific note, often described as “the note below the note.” It self-effaces at medium concentrations (2–10% of the accord) but becomes detectable as woody-cedar above approximately 15–20%. It is present in widely used current compositions (Terre d’Hermès, Fahrenheit, many modern woody masculines) at 10–40% of the formula. Document the percentage of Iso E Super in any accord because at high concentrations it gives a distinctive “cedar box” sharpness that may dominate the intended character of other materials.

Ambrox (Ambroxide, dodecahydro-3a,6,6,9a-tetramethylnaphtho[2,1-b]furan, CAS 6790-58-5, MW 236.39) is a synthetic analog of ambergris (aged sperm whale intestinal secretion). It is produced commercially by cyclization of sclareol, a diterpene extracted from clary sage (Salvia sclarea), making it a nature-identical material from a non-animal botanical source. Ambrox contributes a warm, amber-woody, slightly mineral quality with extraordinary skin affinity and longevity: at 0.5–2% of the accord it provides a diffusive skin warmth that enhances the naturalness of almost any base. It is exceptionally potent; small changes in percentage have large olfactory effects. Document weight precisely per batch.

Hedione (methyl dihydrojasmonate, CAS 24851-98-7, MW 212.29) is a synthetic jasmine accord building material discovered by IFF in 1966. Its character is transparent fresh jasmine-green rather than the heavy, indolic jasmine of the absolute. Used at 5–20% of the accord, Hedione enhances the transparency and airiness of floral heart notes without adding the indolic darkness of jasmine absolute. It is described as a “floral amplifier”: it makes other materials smell more floral while contributing relatively little character on its own. Its use significantly reduces the amount of jasmine absolute required in a formula, lowering cost and improving IFRA compliance simultaneously.

6. IFRA guidelines and skin safety for Patreon documentation

The International Fragrance Association (IFRA) publishes safety standards that restrict or prohibit specific aromatic materials based on toxicological and skin sensitization risk assessments. IFRA standards define concentration limits by product category: Category 4 (fine fragrance applied to skin without intended removal) has the strictest limits for skin-contact materials because the exposure duration and skin area are maximized.

Key category 4 restrictions relevant to perfumery creators: eugenol maximum 0.5% (established skin sensitizer, common cause of fragrance contact allergy; present in many naturals at concentrations that require careful dilution); cinnamaldehyde (trans-cinnamal) maximum 0.05% — one of the most potent fragrance sensitizers, responsible for significant patch-test positivity rates in the contact allergy literature; citral (a mixture of geranial + neral, present in bergamot, lemon, lemongrass, citronella, and many other citrus and herbal oils) maximum 2.4% (citral is a sensitizer and its presence must be calculated across all naturals containing it, not just from added isolated citral); linalool oxidizes in air to hydroperoxides including 6,7-epoxylinalool, which are sensitizers — IFRA standards require accounting for oxidized linalool by using antioxidants in formulas containing high linalool levels and documenting the antioxidant system used; oakmoss absolute is restricted to a near-zero category 4 limit due to atranol and chloroatranol content.

IFRA compliance in a Patreon formula record means: for every material present, list the IFRA category 4 limit if applicable, calculate the concentration in the finished product (accounting for the entire formula, not just the neat material), and document whether the concentration is below the IFRA limit or has been deliberately kept below it. If a formula exceeds an IFRA limit for a given application type, document the intended use category that the limit applies to and whether it is intended as an extrait (leave-on skin application, most restricted) or a diffuser blend (category different from skin application). This documentation is not optional for creators whose patrons will replicate and wear the formula on skin.

7. Patreon tier structure for perfumers and the Apple Tax

The natural Patreon tier structure for an indie perfumery creator separates the public-facing content (fragrance review, creation story, finished bottle notes) from the technical documentation layer that retains subscribers at higher tiers. A two-tier structure is sufficient for most indie perfumers at the Patreon scale.

Formula Journal tier ($15–25/month): the full formula record for each accord or finished fragrance released that month, documented at the level described in this guide — material by CAS number, percentage by weight in the final accord, extraction method and country of origin for each natural, carrier type, concentration grade, IFRA category 4 status for each material present. A four-timepoint smelling strip evaluation at the batch level (immediate, 30 min, 2 h, 24 h). Patrons at this tier are themselves studying formulation or building their own accords; the formula record is the deliverable they cannot get from any other source.

Lab Notebook tier ($30–50/month, capped at 10–15 patrons): everything in the Formula Journal tier plus access to the subscriber Discord channel, monthly small-batch samples of works-in-progress, and a monthly accord critique where the creator evaluates one accord submitted by a patron subscriber and provides written developmental notes. The cap prevents the critique obligation from becoming unsustainable.

Perfumery and fragrance content audiences are among the highest iOS-concentrated in all of creator content: fragrance review YouTube channels run 70–82% iOS viewing; indie perfumery Instagram accounts (bottle photography, extraction process reels, accord-building videos) run 78–88% iOS; natural perfumery TikTok content runs 74–86% iOS.

Apple’s iOS billing fee of 30% applies to all Patreon subscriptions purchased through the iOS app after November 1, 2026 — affecting new subscribers and renewals.

At $200/month at 70% iOS: $200 × 0.70 × 0.30 = $42/month ($504/year) lost to Apple’s iOS billing fee.

At $350/month at 74% iOS: $350 × 0.74 × 0.30 = $77.70/month ($932.40/year).

At $500/month at 80% iOS: $500 × 0.80 × 0.30 = $120/month ($1,440/year).

At $700/month at 78% iOS: $700 × 0.78 × 0.30 = $163.80/month ($1,965.60/year).

Enable Patreon’s web-only billing toggle before October 31, 2026 and update all platform bio links, video descriptions, and formula-post signatures to the Patreon web URL rather than the app-store URL. Patrons who subscribe through a browser are billed through Patreon’s own payment system, and the 30% iOS fee does not apply. The toggle is available in every creator dashboard regardless of Patreon plan or tier count. Perfumery creators whose Patreon deliverable is formula documentation at CAS-number depth have higher-than-average subscriber retention because the documentation layer is genuinely irreproducible from free content; the Apple Tax makes that subscriber relationship more financially significant, and the mitigation requires only a settings toggle before the October deadline.

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