Laboratory Test
Origins & Quality

The Tiyya product range has been put through all the standard tests for cosmetic products, including:

Stability testing:
Accelerated ageing in an incubator at 45°C which proves whether the product will remain stable over a 30-month period.

Challenge testing :
Proves the preservative system’s efficiency.

Compatibility testing :
The product is put into an incubator in its final conditioning format to evaluate the reaction of the product and/or its conditioning to accelerated ageing.

Skin safety test / eye safety test :
The objective of both studies is to evaluate the degree of epidermal and ocular tolerance of a cosmetic or a cosmetic raw material.

*Incubator: Heating device between 40°C and 60°C which enables a stability test to evaluate the consequences of a change of formulation or processing on the preservation of a product.