AHA and hyaluronic acid: how to use them together

The combination may suit some skin types, but hyaluronic acid does not cancel irritation caused by overusing an exfoliating acid. Product strength, frequency, other active ingredients and the condition of the skin barrier all affect tolerance.

Alpha hydroxy acids, often labelled AHA, loosen dead surface cells and may improve rough texture or uneven-looking tone. Glycolic and lactic acid are examples. Hyaluronic acid in a serum or moisturiser is a humectant: it helps hold water near the skin surface. This topical use is different from hyaluronic acid injected into a joint for selected musculoskeletal problems.

Dryness, tightness, stinging or peeling after AHA suggests that the routine is too irritating. Adding more active products at the same time can make it difficult to identify the cause.

Patch-test a new product on a small area and follow its label. Start AHA less often than daily, then adjust only if the skin remains comfortable. After cleansing, apply products in the order directed by their manufacturers; hyaluronic acid is commonly followed by a moisturiser to help limit water loss.

Use broad-spectrum sun protection because exfoliated or irritated skin can be more sensitive to sunlight. Avoid piling AHA onto scrubs, peels or other irritating actives during the same routine. If you use prescription skin treatment, check the combination with the prescriber or a pharmacist.

Stop the new product and rinse gently if you develop marked burning, swelling, blistering or a rapidly worsening rash. Seek urgent care for facial or throat swelling, breathing difficulty, faintness, or widespread hives. Arrange a dermatology review when irritation persists after stopping the product, the skin cracks or oozes, or dark marks develop after repeated inflammation.

Ask which AHA strength fits your skin concern, whether your current retinoid or acne treatment can be used on alternate days, and which fragrance-free moisturiser may support your skin barrier. Mention eczema, rosacea, recent procedures and any previous reactions before starting an exfoliant.