- Regenerating Firmness Program. Train your skin to fight off aging with this face firming cream and serum duo that works in perfect synergy to firm and tighten the skin. The Advanced Optimizer Serum stimulates essential proteins for the skin’s firmness, while the anti-oxidant Advanced Optimizer Crème defends collagen from damage caused by aging. Enriched with vitamins and a collection of botanical extracts, this pair perfectly protects, hydrates, and nourishes maturing skin. Visibly younger skin that is firmer and smoother, redefined facial contours*. * Clinical tests conducted over 4 consecutive weeks on 20 women aged 33 to 65 presenting skin slackening issues: cutometer measurements, clinical evaluation under the supervision of dermatologists, satisfaction tests. 80% natural ingredients in Cream: • White lupin peptides: Thickening. • Horsetail rich in silicon, wild rose rich in Vitamin C: regenerating - firming. • Marine collagen, hyaluronic acid, milk peptides: hydrating - smoothing. • Co-enzyme Q10 : anti-oxidant. • Shea butter: repairing - protecting 30 ml. 89% natural ingredients in Serum: • Hibiscus peptides: Firmness "booster". • Horsetail rich in silicon, wild rose rich in Vitamin C: regenerating - firming. • Soy peptides: restructuring. • Marine collagen, hyaluronic acid: hydrating - smoothing. 30 day intensive treatment. In the morning and evening, after cleansing and spraying on Lotion Yon-Ka, apply the Advanced Optimizer Serum and then the Advanced Optimizer Crème to the face and neck. After the 30 days, apply the duo in the morning or in the evening to the face and neck.