Perfect complexion, smoothed, unified The anti-wrinkle found Dr. Pierre Ricaud Youthful Perfection Hyaluronic Acid Complexion  The serum foundation enriched with hyaluronic acid, recognized for its smoothing properties, unifies and gives an immediate anti-aging effect. Allows a 12-hour hold ** without compromising on comfort. In 4 weeks, the skin is smoother, more radiant.