Mary & May Marine Collagen Serum, 1.01 fl oz (30 ml)

This is one of the most high quality reasonably-priced skin-care products I found on iherb. It has a high concentration of ingredient (low molecular collagen) that nurtures aging skin, no fragrance, and has little other additives. I have extremely sensitive skin, and would react to common substances like hyaluronic acid, which is found in many products. But my skin has no issue when using this product, which is rare, so I am happy to find this gentle product. This serum looks thick, but surprisingly it is very quickly absorbed. More importantly, it doesn't sit on top of skin with a sticky layer to create a fake feeling of moisturisation. So do follow with something moisturising afterwards, since this doesn't really moisturise. It has no scent at all. Overall, skin feels pleasant after use.

A gel texture serum but very light weight. It is not sticky on skin and no scent. Will need to use 4-5 drops for my whole face. Since it absorbed underneath the skin pretty quickly, I used it as the base serum and top with other serum, then moisturizer. You will definitely needed moisturizer on top in winter time.