Biotherm includes among its products Biomain, an anti-aging treatment for hands and nails. It is formulated with pure Thermal Plankton, an exclusive ingredient that activates skin cell renewal, eliminating dead cells and promoting the appearance of new, younger-looking hands. Its factor (SPF15) prevents the appearance of spots and vitamin C helps premature aging. Furthermore, its anti-pigment power effectively eliminates existing spots. The result is soft, youthful hands and visibly healthier, stronger nails. Suitable for women 35 and up.