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🧪 Lactic Acid

Lactic Acid (AHA) | INCI: Lactic Acid | CAS: 50-21-5

INCI Information

INCI Name
Lactic Acid
Common Name
Lactic Acid (AHA)
CAS Number
50-21-5
Category
AHA / pH Adjuster
Molecular Formula
C₃H₆O₃
Molecular Weight
90.08 g/mol
Appearance
Clear, colorless to pale yellow, viscous liquid
Solubility
Miscible with water and alcohols
Typical Concentration
1% – 10% (max 15% for professional)
pH Range
Strongly acidic (1% solution pH ~2.4)
Functions:
Exfoliant (AHA)pH adjusterMoisturizing
Available Purity Grades:
  • 80% (Liquid)
  • 88% (Food grade)
  • 99% (USP/Pharma)

💰 Indicative Price Range (Bulk)

Typical B2B pricing across verified suppliers
$3 – $12 $/kg
Prices vary by purity, MOQ, and order volume. Always request formal quotes.

📖 About Lactic Acid

Lactic Acid is the gentlest AHA (Alpha Hydroxy Acid), naturally produced by the body during exercise. It exfoliates dead skin cells, brightens complexion, and helps the skin retain moisture.

🛒 Purchasing Guide & Tips

❓ Frequently Asked Questions

❓ Is Lactic Acid natural?

Yes, it occurs naturally in the body and in fermented foods. Commercial production is via bacterial fermentation.

❓ How is it different from Glycolic Acid?

Lactic has a larger molecule, penetrates more slowly, and is generally gentler. Glycolic is more potent but more irritating.

❓ Can I use it every day?

At low concentrations (1-3%), yes. At higher concentrations, limit to 2-3x per week.

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