If you’re seeking shiny, hydrated strands, you should start looking for hyaluronic acid in hair products.

But the star substance is now popping up in various hair-care formulas as well.

What Is Hyaluronic Acid?

woman combing long shiny hair in the bathroom

Photo: Studio Firma / Stocksy

“Think of it like a sponge that grabs onto the water to hydrate and plump its surroundings.”

Hyaluronic acid can draw in moisture, which can help reduce and control frizz, says Friese.

Enter: hyaluronic acid.

Instead, search for hair-care products that are formulated with the ingredient, says Dr. DeRosa.

Think:The INKEY List Hyaluronic Acid Hydrating Hair Treatment.

So how often do you better use hyaluronic acid hair products to see results?