Challenge Test

Determination of preservative efficacy on common cosmetic matrices: gels, soaps, creams, solids,…

Ensure that the preservative system proposed in the formula is effective and therefore the product will maintain its microbiological specifications over time.

Methodology

• According to ISO
• European Pharmacopoeia
• In addition to the microorganisms proposed by the regulations, other strains of interest to the client may be included.