Ingredient Guide
Preservative Selection Guide for Handmade Cosmetics
Learn which preservatives work best for different product types, pH ranges, and formulation methods.
Choosing the right preservative is one of the most common challenges for indie cosmetic makers. This guide covers 12 commonly available preservatives with detailed comparison tables.
For each preservative you will find: effective pH range, broad-spectrum coverage (bacteria, yeast, mold), compatibility with common ingredients, typical usage rates, Health Canada restrictions, and recommended product types.
Also includes a decision flowchart: answer 5 questions about your formula and get a preservative recommendation.