Lactic Acid 10% + HA
A high-strength lactic acid serum that works at the skin's surface to smooth texture and improve radiance.
A good fit for dry skin wanting exfoliation, but still a strong acid that can backfire if overused or layered badly.
Lactic acid at 10% from a brand known for clinical concentrations at accessible prices. Most AHA serums at this strength cost 3–5x more from premium brands. For dry-skin acid users, this is the sensible entry point.
PM only — after cleansing on dry skin, before moisturizer. Use 2–3x per week initially. SPF every morning while using any AHA is essential.
Dry skin types who want exfoliation without glycolic's harshness. People who tried The Ordinary's Glycolic Acid 7% Toner but found it too drying. Anyone wanting smoother texture and more radiance from a dry-skin-compatible AHA.
If layered with retinoids or other acids, or used daily before the skin has adapted. 10% lactic is not a casual daily serum — treat it with the respect of a real active.
Stop immediately and focus on barrier recovery for 1–2 weeks. Any AHA at 10% should be paused during barrier flare-ups. Return with lower frequency (once a week) when skin is stable.
- A ceramide moisturizer immediately after to support the barrier post-exfoliation
- SPF 30+ every morning — mandatory with AHA use
- Niacinamide serum on non-acid nights to support tone and barrier
Best For
- Dry skin wanting exfoliation
- Dullness
- Rough texture
- Uneven tone
- Smoother surface exfoliation
How to Use
Apply in the evening after cleansing and before moisturizer. Start slowly and avoid over-layering with other strong actives.
Key Ingredients
At active concentrations (5–10%+): exfoliates the skin's surface, improving texture and tone. At low concentrations: acts as a humectant and pH adjuster.
Attracts moisture at multiple skin depths, helping to hydrate both the surface and deeper layers of the skin.
Provides antioxidant protection and anti-inflammatory benefits. Used in formulas targeting radiance and skin comfort.
Draws moisture to the skin, helps maintain hydration, and reinforces the skin barrier.
Ingredients to Note
May be a concern for some skin types. Tap to learn more.
May be a concern for some skin types. Tap to learn more.
Full Ingredient List
About This Product
The Ordinary Lactic Acid 10% + HA delivers lactic acid at 10% — a meaningful AHA concentration that provides effective surface exfoliation while remaining somewhat more moisturizing than glycolic acid at equivalent concentrations. Lactic acid is an AHA with a larger molecular size than glycolic, meaning shallower penetration and better tolerance for dry or sensitive skin. The formula includes sodium hyaluronate crosspolymer and Tasmannia lanceolata extract for hydration and antioxidant support.