At Biotherm, we believe in successful aging. Only 20% of signs of aging are inevitable, you can act on the rest. Biotherm introduces NEW Blue Therapy Accelerated Serum: a fast-acting serum formula to instantly soften and beautify skin. Concentrated in Algae of Youth™ the three most visible signs of aging - wrinkles, dark spots and loss of firmness - are dramatically improved over time with this anti-aging serum. The more you use Blue Therapy Accelerated serum, the better the results. Skin feels instantly softer and suppler after application. After 4 weeks, fine lines, dark spots and cheek folds are significantly reduced.