Quick Answer

For sensitive skin, a 5% lactic acid serum is a gentle yet effective way to exfoliate. Start slow, patch test, and always moisturize to keep your skin barrier happy.

Why Lactic Acid Suits Sensitive Skin

Lactic acid is a larger molecule than other AHAs like glycolic acid, so it penetrates more slowly and is less likely to cause sudden irritation. That makes it a smart first chemical exfoliant if your skin reacts easily to scrubs or stronger acids.

It also pulls moisture into the skin while it loosens dead cells. This dual action helps you avoid the tight, dry feeling that can come with exfoliation, which is a common concern for sensitive types.

How Often Should You Exfoliate?

Start with once a week, even if your skin feels fine after the first use. Sensitive skin can hide early signs of over-exfoliation, like a slight shine or a tingle that becomes a burn later.

After two to three weeks, you can increase to twice a week if there is no redness or stinging. More than that is rarely needed with a daily moisturizer routine, and over-exfoliating can damage your skin barrier.

Step-by-Step: How to Use Lactic Acid Safely

  1. Patch Test First: Apply a small amount behind your ear or on your jawline and wait 24 hours. If you see redness, itching, or breakouts, skip this product.
  2. Cleanse and Dry: Wash your face with a gentle cleanser and pat dry completely. Applying lactic acid to damp skin increases absorption and can cause stinging. Wait 5 minutes after cleansing to ensure your skin is fully dry.
  3. Apply a Thin Layer: Squeeze a pea-sized amount and spread it evenly over your face, avoiding the eye area and any broken skin. Do not rub or massage. Use only a small amount—more product does not mean better results.
  4. Wait and Moisturize: Leave the serum on for 10 minutes, then apply a fragrance-free moisturizer to lock in hydration and support your skin barrier. If you feel a strong tingle, rinse off after 5 minutes and reduce frequency next time.
  5. Use Sunscreen in the Morning: Lactic acid can make your skin more sun-sensitive. Apply a broad-spectrum SPF 30 or higher every morning, even on cloudy days. Skip lactic acid if you have a sunburn or active irritation.

Product Spotlight

  • 5% Lactic Acid Treatment + Hylasyn: The 5% Lactic Acid Treatment + Hylasyn uses lactic acid, an AHA that gently sloughs away dead skin cells while hydrating the surface with Hylasyn™, a proprietary hyaluronic acid blend. This combination helps you exfoliate without stripping moisture, making it a fitting choice for sensitive skin that needs both renewal and hydration.

    5% Lactic Acid Treatment + Hylasyn

    5% Lactic Acid Treatment + Hylasyn