Preservative systems

Usage test – Required D-Value (RDV)

Regulatory reference:	Proprietary method
Claim:	Efficacy of preservatives
Application field:	Cosmetic products.
Description of the test:	In vitro and in vivo evaluation RDV for the determination of the PAO (Period After Opening).

Posted in Make up, Preservative systems, Claim for cosmetics, Efficacy of preservatives

Evaluation of the microbial contamination risk and water activity

Regulatory reference:	ISO 29621
Claim:	Free water percentage calculation and Low microbial contamination risk
Application field:	Cosmetics.
Description of the test:	Evaluation of the risk of microbial contamination in a cosmetic product by ISO 29621 method for the determination of water activity (Aw) parameter.

Posted in Make up, Preservative systems, Claim for cosmetics, Free water percentage calculation, Low microbial contamination risk

Challenge Test

Regulatory reference:	ISO 11930 for cosmetics; European Pharmacopoeia for medical devices
Claim:	Efficacy of preservatives
Application field:	Cosmetics and medical devices.
Description of the test:	Challenge test for the evaluation of the efficacy of preservative systems according to ISO guidelines (for cosmetics) and European Pharmacopoeia (for medical devices).

Posted in Vaginal products and Condom, Filter devices, shielding films and plasters, Heating and cooling products, Mucoadhesive products, Protection and barrier effect, Detergents, Raw materials for medical devices, Substance-based, Surgical devices and medications, Make up, Moisturizers, Preservative systems, Claim for cosmetics, Claim for medical devices, Efficacy of preservatives