Hyaluronic acid is skincare's favourite hydrator, and for good reason: it's a humectant that can hold many times its weight in water, plumping skin and softening fine lines. But used the wrong way, in the wrong climate, it can quietly leave your skin drier than before.
Dry vs. dehydrated skin
These aren't the same thing. Dry skin lacks oil; dehydrated skin lacks water — and any skin type, even oily, can be dehydrated. Hyaluronic acid addresses water, not oil, which is why pairing it correctly matters.
How hyaluronic acid works — and the catch
Humectants pull water toward themselves. In humid air, they draw moisture from the environment. In dry air, they can pull water up from the deeper layers of your skin and let it evaporate — the opposite of what you want. The fix is simple: always seal it in.
The right way to use it
- Apply hyaluronic acid to slightly damp skin, not bone-dry skin.
- Immediately follow with a moisturiser to trap the water in.
- In very dry climates, lean on richer creams and occlusives too.
Who benefits most
Almost everyone. Dehydrated, tight, or dull skin sees the quickest payoff. Oily and acne-prone skin can use lightweight hyaluronic serums for water without added grease. It layers happily under other actives and sunscreen.
Bottom line
Hyaluronic acid is a reliable, gentle hydrator — as long as you apply it to damp skin and lock it in with moisturiser. On its own in dry air, it's only half a step.
See hydrating products we've reviewed or ask an expert what your skin needs.
FAQ
Can hyaluronic acid dry out your skin?
Yes, in dry climates it can pull water from deeper skin and let it evaporate. Apply it to damp skin and always seal it with a moisturiser on top.
What's the difference between dry and dehydrated skin?
Dry skin lacks oil; dehydrated skin lacks water. Any skin type can be dehydrated, including oily skin — hyaluronic acid addresses water, not oil.
When should I apply hyaluronic acid?
On slightly damp skin, before your moisturiser, morning or night. It layers well under other serums and sunscreen.
Is hyaluronic acid good for oily skin?
Yes — a lightweight hyaluronic serum adds water without adding oil, which suits oily and combination skin well.