Hyaluronic Acid (Topical)

Q: Can Hyaluronic Acid be combined with other skincare?

It is commonly paired with Ceramides, niacinamide , vitamin C, retinoids, sunscreen; introduce one new active at a time and stop if irritation develops.

Topical hyaluronic acid is a water-binding humectant used in serums and moisturisers to draw water into the outer layer of skin, so it feels smoother and looks plumper for a time. It works at the surface: it does not reach the depth or provide the structure of injected filler, and it does not stimulate collagen.

Key Facts

What it is: A water-binding sugar molecule used in serums and moisturisers to hydrate the skin surface and improve its smooth, plump feel.
Also called: Sodium hyaluronate; hydrolysed hyaluronic acid; HA
Pairs with: Ceramides, niacinamide, vitamin C, retinoids, sunscreen
Who should take care: Topical hyaluronic acid is suitable for almost all skin types, including sensitive and acne-prone skin, and is safe to use in pregnancy as far as is known.
In Singapore: Topical hyaluronic acid is a common cosmetic ingredient and widely available in Singapore.

What is hyaluronic acid and what does it do?

Hyaluronic acid is a sugar molecule found naturally in skin, where it binds large amounts of water. Applied topically, it acts as a humectant, drawing water into the outer layer and making skin feel smoother and look plumper for a period of time. High-molecular-weight forms sit on the surface and reduce water loss; lower-molecular-weight or hydrolysed forms penetrate somewhat further. Topical hyaluronic acid does not reach the depth or provide the structure of injected filler, and it does not stimulate collagen in the way retinoids or procedures can. In very dry conditions, applying it to damp skin and sealing with moisturiser helps. [1]

A woman by a window, hand resting against her cheek, skin evenly lit

“Topical serums should not be confused with injectables in strength, purpose or results.”
Dr Sin YongOn topical versus injectable hyaluronic acid

What does the evidence show?

A review of clinical studies found topical hyaluronic acid improved hydration and the appearance of fine lines and elasticity in several trials, but most were small, short and sponsored, and many tested multi-ingredient products. Hydration benefits are consistent and well understood. Claims of significant wrinkle reduction from topical use alone should be treated with caution, as surface hydration effects fade within hours to days of stopping.

Who should avoid hyaluronic acid?

Topical hyaluronic acid is suitable for almost all skin types, including sensitive and acne-prone skin, and is safe to use in pregnancy as far as is known. Rarely, people react to other ingredients in the formula. Anyone with persistent irritation should stop and check the full ingredient list.

Is hyaluronic acid available in Singapore?

Topical hyaluronic acid is a common cosmetic ingredient and widely available in Singapore. Injectable hyaluronic acid fillers and skin boosters are different products, regulated as medical devices and administered by doctors. Topical serums should not be confused with injectables in strength, purpose or results.

If a dark patch, breakout or irritation is not responding to what you are using, the next step is a diagnosis rather than another product. See the Skin A–Z library for related ingredients.

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Questions Patients Actually Ask

What is Hyaluronic Acid used for?+

A water-binding sugar molecule used in serums and moisturisers to hydrate the skin surface and improve its smooth, plump feel.

Who should avoid Hyaluronic Acid?+

Can Hyaluronic Acid be combined with other skincare?+

It is commonly paired with Ceramides, niacinamide, vitamin C, retinoids, sunscreen; introduce one new active at a time and stop if irritation develops.

Is topical hyaluronic acid the same as hyaluronic acid filler?+

No. Topical hyaluronic acid is a humectant that works at the surface, drawing water into the outer skin layer. It does not reach the depth or provide the structure of injected filler, and it does not stimulate collagen.

Is topical hyaluronic acid suitable for sensitive or acne-prone skin?+

Topical hyaluronic acid is suitable for almost all skin types, including sensitive and acne-prone skin. As with any new product, try a small area first. If irritation or a rash develops, stop using it and see a doctor.

Medically reviewed by Dr Sin Yong, MBBS (NUS), MRCS (Edinburgh) · Last updated 7 October 2026 · Editorial policy

Availability in Singapore

Topical hyaluronic acid, including sodium hyaluronate and hydrolysed forms, is a cosmetic ingredient in Singapore. Serums and creams are notified to the HSA under the Health Products Act and must comply with the ASEAN Cosmetic Directive annexes, which set no concentration limit for it. Injectable hyaluronic acid, whether a filler or a skin booster, is a different category: these are medical devices registered with the HSA and administered by a doctor. A doctor assesses whether dryness is a surface problem or a dermal one before advising. Source.