Soap Making and Formulation Guides

Focused explanations for makers who want to understand the numbers behind a safer, more repeatable formulation workflow.

How to Calculate Lye for Soap

Understand the full calculation from oil weights and SAP values to superfat and liquid.

Choose the right alkali for bar soap, liquid soap, or a hybrid recipe.

See how superfat changes the calculated lye amount and the finished recipe.

Compare concentration, water-to-lye ratio, and liquid as a percentage of oils.

Learn why every oil needs a different amount of NaOH or KOH.

Learn how Sage reviews soap and cosmetic formulation ideas.