The FDA bans certain preservatives; the EU restricts ~50 substances. Common approved options: phenoxyethanol, parabens (methyl, propyl, butyl), sodium benzoate, potassium sorbate, and natural alternatives (rosemary extract, neem oil). Regulations differ by region. A preservative consultant ensures your choice meets your target market's rules.
Read the full guide on cosmetic preservative system consultant for hire →