Stop guessing with your skincare formulas. Formuly is a DIY skincare formulation calculator with built-in safety checks -- it warns you about missing preservatives, concentration limits, and ingredient conflicts before you mix a single batch.

Whether you're making your first lotion or scaling a serum recipe for a small business, Formuly replaces spreadsheets and guesswork with real-time chemistry-backed validation.

🛡️ 162 Real-Time Safety Rules
Formuly checks your formula as you build it. Get instant alerts for missing preservatives in water-based recipes, ingredients exceeding safe concentration limits, pH conflicts between actives, and emulsifier gaps. No other skincare recipe app does this.

🧪 133 Expert Recipes
Browse curated cosmetic recipes across 27 product types -- moisturizers, serums, cleansers, toners, masks, balms, hair care, perfumes, and more. Every recipe includes phase-by-phase instructions with temperatures, timing, and visual cues so you know exactly what to do at each step.

📋 502 Ingredients
A comprehensive cosmetic ingredient database with INCI names, safety data, solubility, typical usage rates, HLB values, functions, and substitution suggestions. Search by name or function to find what you need. Add your own custom ingredients too.

⚖️ Smart Batch Calculator
Scale any skincare recipe from 10g to 1000g with a slider. Switch between grams and ounces. Every ingredient recalculates instantly -- no more manual math or spreadsheet formulas. Works with phase-based formulations so your emulsion ratios stay correct.

✏️ Create Your Own Formulas
Build cosmetic formulas from scratch or use any recipe as a starting template. Adjust percentages, swap ingredients, and watch the safety engine validate your changes in real time. Save everything in My Lab -- your personal formula library.

🔬 Learn Section
Master emulsion techniques, understand HLB calculations, learn about preservative systems, and get clear explanations of cosmetic chemistry concepts. Built-in learning resources help you go from beginner to confident formulator.

📤 Export & Share
Export your finished formulas as PDF documents or share as formatted text. Keep professional records of every recipe you create.

🌿 Works Completely Offline
All 133 recipes, 502 ingredients, and 162 safety rules are stored locally on your device. No internet connection required -- formulate anywhere.

Who is Formuly for?

Beginners making their first homemade cream or lotion who want to know their recipe is safe. Experienced DIY skincare makers tired of spreadsheets who need a proper formulation tool. Small batch cosmetic businesses that need accurate scaling and batch documentation. Anyone curious about cosmetic chemistry who wants to learn by doing.

Formuly is completely free. No subscriptions, no paywalls, no hidden costs. Made for the DIY skincare and cosmetic formulation community.