Contains: - Phase 1 Serum 10ml: Week 1, renews the skin's radiance and clarity. - Phase 2 Serum 10ml: Week 2, reduces the appearance of fine lines and pores for smoother skin. - Phase 3 Serum 10ml: Reduces the appearance of deeper lines in the skin. - Phase 4 Serum 10ml: Evens the skin's tone and enables a more youthful appearance. A full 4-week face peeling treatment that provides the complexion with full support using four separate tailored treatments. The Progressive Renewal Treatment enables smoother, brighter and more youthful-looking skin. Using hydroxy acids this treatment gently exfoliates the skin, gradually building in strength throughout the four-week treatment. Idebenone acts as a powerful antioxidant that protects the skin against free radical damage. To use: Apply evenings to the cleansed face. Each of the four serums is designed for one week of treatment in sequential order, forming a four-week treatment in total.