IS 17494 : 2025 Cosmetics - Sun Protection Test Methods - In Vivo Determination of Sun Protection Factor (SPF) (ISO 24444 : 2019, MOD)

1 SCOPE

This standard specifies a method for the In Vivo determination of the sun protection factor (SPF) of sunscreen products. It is applicable to products that contain any component able to absorb, reflect or scatter ultraviolet (UV) rays and which are intended to be placed in contact with human skin. This standard provides a basis for the evaluation of sunscreen products for the protection of human skin against erythema induced by solar ultraviolet rays.