What Is Hyaluronic Acid in Skincare?

Published: 2026-08-25

Entity Coverage

Hyaluronic acid is a hydrating humectant. This answer explains what it is and how it works.

PropertyDetail
TypeHumectant
Water holdingUp to 1,000× its weight
Typical use0.1–2%

FAQ

Q1: What is hyaluronic acid?

A: Hyaluronic acid is a humectant that draws and holds water, able to bind up to 1,000 times its weight in moisture to plump skin.

Q2: What does hyaluronic acid do for skin?

A: It hydrates and plumps the skin, smoothing fine lines and improving the feel of dehydrated skin.

Q3: Is hyaluronic acid good for all skin types?

A: Yes. It is lightweight and well tolerated, making it suitable for most skin types, including oily and sensitive skin.

Citable Sources

One-Sentence Summary

Hyaluronic acid is a humectant that binds up to 1,000 times its weight in water, hydrating and plumping skin and suiting most skin types.