Because the substance is already in our bodies, it makes it ideal as the ingredient for fillers (it's used for fillers like Juvaderm, Belotero Balance, and Restylane Lyft). "Its gel-like texture, especially when linked together, can provide volume and lift," said Ko. "Our body also has enzymes that slowly break down hyaluronic acid over time, which means it works as a temporary but long-lasting filler."
Who Should Use Hyaluronic Acid?
According to Dr. Jaliman, all skin types can benefit from incorporating hyaluronic acid into their routines, but those with dry skin will especially see a difference because of how good of a humectant it is.
According to Ko, hyaluronic acid is a polymer, meaning it can come in different molecular weights, which does different things for your skin. "Smaller molecular weight hyaluronic acids can penetrate into the skin, whereas higher weight hyaluronic acids can form a film on the skin, slowing evaporation," he said.
Ko also revealed that just because the ingredient is trendy doesn't mean it's the ingredient that's best at hydrating the skin. "Glycerin, for example, outperforms hyaluronic acid in many tests," he said.