The present specification describes cosmetic or pharmaceutical compositions for application to the skin, hair and / or nails of a subject, and methods for using them to administer hydrogen peroxide to the skin, hair and / or nails, and Disclosed are kits for applying them. The composition includes a hydrogen peroxide producing enzyme and a substrate for the hydrogen peroxide producing enzyme. The present specification further discloses cosmetic compositions and kits for lightening the skin and / or hair, which further comprise lignin peroxidase, and cosmetic methods utilizing them. [Selection] Figure 10A
