Bio Retinoid Youth Serum is a light, concentrated serum that is clinically proven to reduce fine lines and wrinkles.Improves elasticity and gives a boost of hydration to the skin, for a firmer, more radiant and more even skin tone. Contains Bio Retinoid (Bidens Pilosa) which is able to work in a way on skin where no irritants are released. Recommended for damaged skin in need of a moisturizing, repairing boost, for a visibly healthier skin. Suitable for all skin types and tones. Benefits: Reduces fine lines and wrinklesMakes the skin more radiant and smooth and younger lookingContains REN\'s preferred bio retinoid, which works effectively without irritating the skin