Lactic acid is increasingly recognized for its effectiveness in skincare. As a gentle yet potent alpha-hydroxy acid (AHA), it offers exfoliating, brightening, and hydrating properties. The question many brands ask: Can private-label skincare lines incorporate lactic acid safely and effectively? Absolutely—with the right knowledge and formulation practices.
What Makes Lactic Acid a Must-Have Ingredient?
Lactic acid gently removes dead skin cells by breaking down the bonds that hold them together. This results in smoother, brighter, and more youthful-looking skin. Unlike harsher AHAs, lactic acid's larger molecular size makes it ideal for sensitive, dry, acne-prone, or combination skin types .
Beyond exfoliation, lactic acid is part of the skin’s natural moisturizing factor (NMF), helping the skin retain hydration and support its natural barrier function. It also helps even out skin tone and fade hyperpigmentation by promoting cell turnover and inhibiting excess melanin production.
What Should Private-Label Brands Know Before Using Lactic Acid?
Gentle and Versatile—but Not Without Precautions
Lactic acid offers both exfoliation and hydration, making it one of the gentlest acid options available. This dual benefit enables one formula to target multiple skin concerns—perfect for a smart private-label product.
That said, even gentle acids can increase sun sensitivity, making daily broad-spectrum SPF essential. Brand owners should include this recommendation in product usage instructions.
Concentration Matters
Formulations with 5–12% lactic acid have been shown to improve sun damage, fine lines, and texture over time . Lower concentrations around 5% are very gentle and suitable for daily use, while higher concentrations (10–12%) are reserved for more intensive exfoliation but may increase irritation risk .
Why Private-Label Brands Stand to Gain
Customization & Branding Private-label allows full control over concentration, ingredients, and formulation. Brands can create a hydrated, smoothing AHA product that aligns with their identity, whether clean, eco-friendly, or dermatologist-developed.
Differentiation In a crowded market, a lactic acid product that delivers hydration and exfoliation simultaneously—especially with add-ons like ceramides or niacinamide—stands out and attracts skincare-savvy consumers.
Gentle for All Skin Types Because lactic acid is among the gentlest AHAs, it avoids overwhelming even sensitive skin. This inclusivity helps appeal to broader audiences.
Formulation & Labeling Best Practices
- Formulation: Stick to a skin-safe pH (around 3–4) and test for stability and skin tolerance. Consider blending lactic acid with hydrating ingredients like hyaluronic acid or ceramides to enhance moisture retention.
- Labeling: Clearly communicate the percentage of lactic acid and its benefits. Include usage guidelines—recommend starting with a few times per week and using sunscreen regularly.
Real-World Insight
Beauty professionals and users report noticeable smoothing and brightening results with lactic acid products like The Ordinary’s 5% Lactic Acid + HA 2%, praised for effectiveness coupled with gentleness . Similarly, Sunday Riley Good Genes, with 10% lactic acid, is celebrated for delivering radiant skin tone improvements—notable enough to spark sales surges when discounted.
Lactic acid is a powerful, versatile, and gentle active ingredient that private-label brands can confidently integrate into their skincare lines. It offers effective exfoliation, enhances hydration, smooths texture, and fades pigmentation—often in a single formula. With mindful concentration, clear labeling, and inclusion of sun protection advice, you can create a standout product that delivers visible results and builds customer loyalty.
