Lotion Formulation Calculator
Turn a percentage-based formula into exact gram weights. Enter your batch size, add your ingredients by phase, and get a weigh-out sheet for the bench.
Weigh-Out Sheet
| Ingredient | % | Grams |
|---|
Preservative rule: any formula containing water must include a broad-spectrum preservative (typically 0.5–1.5%) added in the cool-down phase. Anhydrous products like body butters don’t need one. Always follow your preservative supplier’s usage rates and usage instructions.
