Hyaluronic Acid

HA

humectantCAS: 9004-61-9

Humectant holding up to 1000x its weight in water. Multiple molecular weights provide surface and deep hydration. Universal for all skin types.

Safety Ratings

Safety5/5
Comedogenic0/5
Irritancy0/5
EWG Score1/10

Skin Type Compatibility

oily
5/5
dry
5/5
sensitive
5/5
combination
5/5
normal
5/5

Addresses Concerns

dehydrationdrynessagingplumping

Functions

humectanthydratingskin plumpingwound healing

Known Interactions

synergy
Ceramide NP

Hyaluronic acid draws moisture into the skin while ceramides seal it in by reinforcing the lipid barrier. This combination provides complete hydration: attraction and retention of water.

synergy
Niacinamide

Niacinamide strengthens the skin barrier and reduces transepidermal water loss, while hyaluronic acid draws moisture into the skin. Together they provide comprehensive hydration and barrier support.

synergy
Retinol

Hyaluronic acid provides intense hydration that helps counteract the dryness and flaking commonly associated with retinol use. Applying HA before or after retinol can improve tolerance and comfort without reducing efficacy.

synergy
Glycolic Acid

Glycolic acid exfoliates dead skin cells and enhances absorption, while hyaluronic acid replenishes moisture to freshly exfoliated skin. This pairing delivers both renewal and hydration.

synergy
Centella Asiatica Extract

Centella asiatica calms inflammation and promotes healing while hyaluronic acid provides deep hydration. This pairing is especially beneficial for sensitized, dehydrated, or post-treatment skin.

synergy
Glycerin

Both are powerful humectants that attract water to the skin, but they work at different layers. Hyaluronic acid binds water in the upper epidermis, while glycerin draws moisture from the dermis and environment. Together they provide multi-level hydration.

synergy
Lactic Acid

Lactic acid provides gentle exfoliation while also being a natural humectant itself. Paired with hyaluronic acid, this combination exfoliates and deeply hydrates simultaneously, resulting in smoother and plumper skin.

synergy
Panthenol

Panthenol is a humectant and emollient that penetrates deeply into the skin, while hyaluronic acid binds water at the surface. Together they provide both deep and surface-level hydration for maximum moisture retention.

Products Containing This Ingredient

Affiliate links — we may earn a small commission at no extra cost to you.