At Biotherm, we believe in "aging well". Only 20% of the signs of aging are inevitable… the rest is up to you! With new Blue Therapy Accelerated Serum, skin appears instantly softer and more beautiful. Concentrated with Youth Algae extract (Alaria Esculenta), this serum takes effective action on the three main signs of aging: wrinkles, dark spots and loss of firmness. The more you use Blue Therapy Accelerated Serum, the better the results. After 4 weeks, wrinkles and dark spots are significantly reduced. Skin appears more radiant/brighter for 89% of women*. *Self-assessments, 61 women.