Is Lactic Acid Safe? What You Need to Know
Safety Score
Concern Level: low
Lactic Acid is generally considered safe for use in household and personal care products.
What Is Lactic Acid?
An alpha-hydroxy acid (AHA) naturally found in milk. Used for gentle exfoliation and skin brightening with moisturizing properties.
Commonly found in: chemical peels, moisturizers, vaginal care, cleaning products
Safety Research & Evidence
An alpha-hydroxy acid (AHA) naturally found in milk. Used for gentle exfoliation and skin brightening with moisturizing properties.
Regulatory status: CIR safe up to 10% in cosmetics for consumer use; FDA OTC not established
Health Concerns
skin irritation at high concentrations
Evidence: ModerateResearch indicates skin irritation at high concentrations may be associated with exposure to Lactic Acid. Particularly concerning for sensitive skin individuals at high concentrations.
Vulnerable Populations
Extra caution recommended for: sensitive skin individuals at high concentrations
Safer Alternatives
| Alternative | Safety Score |
|---|---|
| Mandelic Acid | 8/10 |
How to Avoid Lactic Acid
- Read ingredient labels carefully for "Lactic Acid" or its chemical synonyms
- Choose products with third-party certifications (EWG Verified, Made Safe)
- Consider alternatives like Mandelic Acid
- Check the EWG Skin Deep database for product ratings
- Look for "Lactic Acid-free" labels on product packaging
Frequently Asked Questions
Is Lactic Acid safe for babies?
Lactic Acid is generally considered acceptable for use around babies at typical concentrations in consumer products.
What are the safest alternatives to Lactic Acid?
Safer alternatives include Mandelic Acid (safety score: 8/10).
Is Lactic Acid banned in other countries?
Regulatory status: CIR safe up to 10% in cosmetics for consumer use; FDA OTC not established
How do I know if my product contains Lactic Acid?
Check the full ingredient list on the product label. Lactic Acid may also appear under different chemical names. Using apps like EWG Healthy Living or Think Dirty can help identify it.
Related Safety Guides
References
- Smith WP (1996). Lactic acid: a critical review of its clinical effects on the skin PMID: 8784073