Sodium Hyaluronate

INCI: Sodium Hyaluronate
Category: Humectant
Used in: Skincare, haircare
Typical Usage Level (Topical):
0.1% – 1% in leave-on skincare (serums, gels, moisturizers)
Lower concentrations are often sufficient due to its high water-binding efficiency.

What This Ingredient Does

Sodium hyaluronate is the sodium salt of hyaluronic acid and functions as a powerful humectant in skincare. Because of its smaller molecular structure, it can penetrate the upper layers of the skin more efficiently than traditional high-molecular-weight hyaluronic acid.

Once in the skin, it attracts and binds water, helping improve hydration levels from within the epidermis. This leads to better skin smoothness, improved elasticity, and reduced tightness associated with dehydration. Its ability to hydrate without feeling heavy makes it especially valuable in lightweight and gel-based formulations.

Unlike occlusive moisturizers, sodium hyaluronate does not sit on the surface alone; it helps support internal water balance, contributing to overall skin comfort and barrier health.

Benefits

• Provides deep and sustained skin hydration
• Helps improve skin smoothness and elasticity
• Reduces tightness caused by dehydration
• Supports a healthy, resilient skin barrier
• Lightweight and non-greasy

Who It’s Suitable For

• All skin types
• Dehydrated or dull skin
• Oily or acne-prone skin needing water, not oil
• Sensitive or barrier-compromised skin

Note by Dr. Su

(M.D. Dermatologist)
Sodium hyaluronate is an effective hydrator for everyday skincare. Its smaller size allows better skin penetration, but optimal results come from pairing it with barrier-supporting ingredients rather than relying on it alone.

References

Journal of Clinical and Aesthetic Dermatology, March 2009, pages 38–43
Journal of Drugs in Dermatology, 2011, Issue 9, pages 990–1000
International Journal of Cosmetic Science, 2014, pages 19–26