Deep Redensifying Treatment - 'The 1st skin care product to boost collagen production' Applied each morning, the Deep Redensifying Treatment has a dual effectiveness on wrinkle depth and skin firmness. From the first moment of application, its ultra-smoothing texture acts like a second skin: you can immediately sense the redensifying action of the bio-vegetal polyosides. Day after day it renews your complexion, helping to soften expression lines.