Hyaluronic acid serums have been popular in the skincare industry for quite a few years now. Indian skincare brands have been including various hyaluronic acid serum in their range too. Hyaluronic acid is a naturally occuring glycosaminoglycan which is present throughout the body. It can hold upto 1000 times the weight in water. It helps in plumping the skin, restoring hydration and moisturisation to the skin and also helps in plumping it up. When used topically along with a good emollient cream on top it helps in sucking in the moisture from the cream and also prevents transepidermal water loss. Harsh environmental factors such as sun damage, oxidative stress can lead to depletion of hyaluronic acid levels in the skin leading to a dry dehydrated skin. Adding a topical hyaluronic acid serum helps in replenishing the lost moisture and promotes a healthy skin barrier. Coming to the Dot and Key Hyaluronic acid serum concentrate. Ingredients- Purified Water, Dimethicone, Dime