Clinically proven to reduce the signs of aging by 42%, increase hydration by 264% and improve elasticity by 28% in just 12 weeks. The Collagen System has been created to support skin's renewal and deliver a youthful, healthy appearance, whilst protecting the skin's barrier. The Collagen System Sensitive 3-Step Routine Set of Active Exfoliant 7 %, Day Collagen Sensitive and Night Collagen Sensitive provides gentle but effective daily treatment for highly sensitive and problematic skin. Suitable for problematic and very sensitive skin. Unused and unopened.