ROSELIFT COLLAGÈNE CONCENTRÉ 30ml Redensifying Booster Serum Roselift Collagène and its dual redensifying and lifting action. Its unique formulas combine a collagen-boosting peptide with a patented active ingredient derived from Damask rose. What’s the secret to the effectiveness of the redensifying booster concentrate? It’s a serum that has twice the concentration of collagen-boosting peptide than the day care. Its intense redensifying action complements the use of the day and night care. You’ll love its high-absorption texture and its fragrance with rosy, fruity and woody floral notes.