Dehydration of the skin is considered a sign of ageing. Basically, as we age, our skin loses its ability to produce hyaluronic acid, a molecule that is responsible for retaining moisture in the skin. Now, this can be solved with the new Cosderma Rejuvlight Youth Face Cream. The cream contains Argireline that produces collagen and helps do the most essential job, i.e., hydrate the skin. Although exfoliation and using occlusive moisturisers do help in retaining water in the skin, using a humectant can be the best moisturiser for the skin.