Understatement of the century: There is no shortage of skin care (and makeup… and hair care…) products on the market that feature hyaluronic acid (HA). Lauded by countless brands and experts for its hydrating, plumping benefits, it’s one of the most popular ingredients used in product development today. On top of the bevy of dedicated hyaluronic acid serums out there, you can find the ingredient in basically any type of skin care product — think moisturizers, masks, cleansers, toners, and even sunscreens — marketed to help quench your skin’s thirst and packaged with some sort of aqua blue lettering or designs.
