Every tool inside
The first formulation OS built for melanated skin and hair.
Because there is no other skin- and hair-care formulator on the market built specifically for melanated people. Every calculator, builder and safety check below is tuned for Fitzpatrick IV–VI skin and coily/curly hair — and every one of them runs right here in the app, with no outside account or AI subscription required.
Formulate
Build complete recipes with grams, phases, and kitchen measures.
Formula Builder
Five-step guided builder for body butters, hair butters, lotions and more.
Open tool →Formula Library
Browse every starter template with full phase breakdowns and gram weights.
Open tool →Butter Texture Planner
Dial in whipped, firm or spreadable texture from your butter/oil ratio.
Open tool →Cleanser Builder
Surfactant blends balanced for melanin-rich skin barriers.
Open tool →Soap (Saponification)
Cold-process soap with SAP values and superfat calculation.
Open tool →Sunscreen Formulator
Mineral SPF stacks with iron oxide tint for visible-light protection.
Open tool →Fragrance Pyramid
Top / heart / base note ratios with IFRA-safe percentages.
Open tool →Batch Scaler
Scale any formula up or down while preserving ratios.
Open tool →Costing
Per-batch and per-unit cost from raw ingredient prices.
Open tool →Routine Builder
Compose AM/PM routines by skin condition and Fitzpatrick.
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Calculate
The math behind stable, safe, effective products.
HLB Calculator
Required HLB for oil blends and matched emulsifier picks.
Open tool →pH Calculator
Target pH ranges for actives, cleansers and hair products.
Open tool →Saponification (SAP)
SAP values for every carrier oil and butter.
Open tool →Shelf Life
Estimated shelf life from preservative + water activity + packaging.
Open tool →Stability
Emulsion stability check across temperature and time.
Open tool →Kitchen Measure Converter
Convert grams to drops, teaspoons, tablespoons or cups.
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Check safety
Non-negotiables for melanin-rich skin — because inflammation equals pigment.
Comedogenic Rating
0–5 pore-clogging score for every oil and butter.
Open tool →EO Safety Limits (IFRA)
Dermal-safe % for every essential oil, by product type.
Open tool →Active Compatibility
Which actives you can stack (niacinamide + vit C, retinol + AHA, etc.).
Open tool →Allergen Search
EU 26 + extended allergen database with declaration threshold.
Open tool →Preservation Guide
Preservative picks by pH, phase and water activity.
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Ingredient intelligence
A 320-ingredient library with 120+ profiles annotated for melanated skin, plus every category browser.
Ingredient Search
Search 500+ ingredients by name, INCI or function.
Open tool →INCI Lookup
Convert common names to legal INCI labels.
Open tool →Actives
Full active library with usage %, pH range and cautions.
Open tool →Antioxidants
Oil-phase and water-phase antioxidants with dose.
Open tool →Botanicals
Herbal infusions, extracts and hydrosols.
Open tool →Carrier Oils & Butters
Fatty acid profiles, absorption and shelf life.
Open tool →Emulsifiers
HLB values, usage % and cold-vs-hot process notes.
Open tool →Surfactants
Cleansing agents grouped by charge and mildness.
Open tool →
Melanated skin & hair specialty
The tools that make The Apothecary Os the first formulation OS built for melanated skin and hair.
Pigmentation Stack Planner
Hydroquinone-free brightening protocol tuned for Fitz IV–VI.
Open tool →Hair Porosity Profile
Low / medium / high porosity care map plus 3a–4c curl notes.
Open tool →Scalp Condition Guide
Protocols for dandruff, seborrheic dermatitis, dryness and buildup.
Open tool →Condition → Ingredient Recommender
Pick a skin or hair concern; get the ingredients that address it.
Open tool →Proteins & Humectants
Protein strength by porosity and humectants matched to your climate.
Open tool →