LACTIC ACID
BENEFITS
Gentle Exfoliation – Removes dead skin cells from the surface (AHA).
Hydrates While Exfoliating – Unlike many acids, lactic acid is naturally moisturizing.
Brightens Skin – Reduces dullness and promotes a healthy, glowing look.
Fades Pigmentation – Helps lighten dark spots, acne marks, and uneven tone.
Improves Texture – Smooths roughness and refines skin texture.
Boosts Cell Turnover – Reveals newer, fresher skin.
Strengthens Skin Barrier – Supports natural moisturizing factors (NMF).
SIDE EFFECTS
Mild Tingling or Burning – Especially for beginners or sensitive skin.
Dryness & Flaking – If used too frequently.
Redness/Irritation – When layered with strong actives.
Photosensitivity – Increases sun sensitivity; sunscreen is essential.
CONCENTRATION
Common strengths:
5% → Gentle, good for beginners/sensitive skin.
8–10% → Moderate exfoliation; ideal for glowing skin & texture.
10–12%+ → Stronger formulas for experienced users.
👉 Sweet spot: 5–10% for regular use with minimal irritation.
Note: Higher percentages (15–30%) are typically professional peels.
EFFECTIVENESS
Highly effective for:
✔ Dullness
✔ Rough/uneven texture
✔ Mild hyperpigmentation
✔ Dry or dehydrated skin
✔ Uneven skin tone
✔ Early signs of aging (fine lines)
Works exceptionally well when combined with:
Hyaluronic Acid – Restores hydration after exfoliation.
Niacinamide – Calms skin & boosts barrier repair.
Ceramides – Reduce irritation and support moisture barrier.
Azelaic Acid – Brightening + pigmentation reduction (use in alternate routines).
Peptides – Improve skin recovery.
Compatibility:
Avoid in the same routine with retinol, salicylic acid, benzoyl peroxide, strong Vitamin C (LAA) if you have sensitive skin.
Safe with most hydrating ingredients.
HOW TO USE
Start slow:
2–3 nights/week → increase as tolerated.
Routine:
Cleanse
Apply Lactic Acid (serum/toner)
Moisturize
SPF in the morning (mandatory)
Application tips:
Use on dry skin for less irritation.
Use on slightly damp skin for stronger effect (not for sensitive skin).
Patch test recommended.
JUSTIFICATION
Gentlest AHA – Great for beginners or those who can’t tolerate glycolic acid.
Dual-action – Exfoliates + hydrates.
Ideal for dry, dull, or textured skin.
Visible glow often appears after just a few uses.
QUALITY
Look for:
5–10% lactic acid
Added humectants (HA, glycerin)
Soothing ingredients (aloe, centella, panthenol)
Fragrance-free formulas for sensitive skin
pH around 3.5–4 for best effectiveness with lower irritation
Texture:
Water-based solutions or lightweight serums.
SKIN TYPES
✅ Dry Skin – Best AHA option; exfoliates without over-drying.
✅ Normal Skin – Great for brightness + smooth texture.
⚠️ Oily/Acne-Prone Skin – Works, but glycolic or salicylic may be more effective.
⚠️ Sensitive Skin – Start with 5% and use sparingly.
❌ Compromised Barrier / Eczema / Rosacea – Avoid until barrier is healed.