A stable Vitamin C has to be in concentrations of 15% or greater to be effective. Tiferet Skin Therapy uses 20% Vitamin C (L-ascorbic acid). Not a lot of products can say that!
The Effects of Sun Exposure on the Epidermis and the Dermis
Generally, before the age of 25, the dead cells of the stratum corneum lay in an organized fashion-much like the shingles on a roof. The skin appears moist, translucent, smooth and finely textured.
