The first formulation OS
built for melanated skin & hair.
Because no other skin- and hair-care formulator on the market was built specifically for melanated people. Builders, calculators, and ingredient intelligence tuned for Fitzpatrick IV–VI skin and coily / curly hair.
What's inside the OS
Every tool a formulator needs.
Formulate
Guided builders for body butter, hair butter, lotion, cleanser and more.
Calculate
HLB, pH, saponification, shelf life, stability, batch scaling and costing.
Check safety
Comedogenic scores, IFRA limits, active compatibility and allergens.
Ingredient intelligence
A 320-ingredient library with 120+ profiles annotated for melanated skin, INCI lookup and category browsers.
Prefer to formulate by conversation?
Every one of the 35+ built-in tools already runs inside the app — no outside account, no AI subscription. If you also use Claude, connect it and reach the same melanated-first data as 21 AI-assistant capabilities, by chatting instead of tapping.
See the optional Claude setupYou
Give me a hydroquinone-free PIH protocol for Fitzpatrick VI, pregnancy-safe.
Claude · via The Apothecary Os
AM: niacinamide 5% → alpha arbutin 2% → tinted zinc SPF 50. PM: azelaic 10% → bakuchiol 1% → centella 2%. Skipping retinoids and cysteamine (pregnancy). Expect visible fading in 8–12 weeks.
Made for you
Rituals that honor your skin.
Build formulations rooted in honest science.
Explore our calculators, ingredient library, and formulation tools — built for the skin and hair generic tools ignore.
Open the builder