The Core System Collagen + Exfoliant Set Medium in travel size consists of 7% AHA Active Fluid, Collagen Day and Collagen Night Serum and offers a gentle but effective daily treatment.The set contains:1 x QMS Day Collagen Serum, 30 ml.1 x QMS 10% AHA Active Fluid, 30 ml1 x QMS Night Collagen Serum, 30 mlQMS Day Collagen Serum: The innovative Neotec A15 technology of bovine collagen and multidimensional hyaluronic acid is specially designed to intensively moisturize and improve the elasticity and firmness of the skin. For the ultimate anti-aging effect.Collagen Day Serum also contains Vitamin E, which has an antioxidant effect and protects the skin from free radicals. Aloe Vera moisturizes and soothes stressed skin. Ideal for use after an exfoliant. QMS 10% AHA Active Fluid: The coordinated composition of effective fruit acids in an optimal concentration was specially designed to refine and improve the skin. 1% Prebiotics form a natural skin protection shield and ensure a balanced microbiome.QMS Night Collagen Serum: The innovative Neotec A15 technology of bovine collagen and multidimensional hyaluronic acid was specially designed to intensively moisturize and improve the elasticity and firmness of the skin. For the ultimate anti-aging effect.Collagen Night Serum also contains a highly effective tree bark extract that supports the skin's natural regeneration. The Overnight Repair Complex helps to counteract the damage caused by negative environmental influences. Ideal for use after an exfoliant.