Retinol is the gold-standard ingredient for improving the look of fine lines, wrinkles, and other signs of aging. “It helps reduce the appearance of wrinkles and fine lines and promotes clear, firmer skin” said Summer. “It’s a must-have”.
A humectant: all that means is it works like a sponge to help the skin retain water, leaving it appearing plump and dewy. In fact, hyaluronic acid is so good at moisturizing it can hold up to 1,000 times its weight in water. (115)
Collagen itself is too large a molecule to be absorbed into the skin. Instead, look for ingredients that boost collagen: retinol and Gotu Kola. According to a study published in Aesthetic Plastic Surgery, Gotu Kola has this really unique property that it helps in the production of collagen. Which, as you may know, plays a huge role in making skin firmer". (117)