Introduction:
Say goodbye to harsh physical scrubs and hello to chemical exfoliation. AHAs (Alpha Hydroxy Acids) and BHAs (Beta Hydroxy Acids) are the secret to glowing, smooth skin. While both work to remove dead skin cells, they solve very different skin concerns. Let’s break down which one you should be adding to your iHerb cart.
Understanding the Difference:
AHA (e.g., Glycolic/Lactic Acid): Water-soluble. It works on the skin's surface to fade dark spots, smooth fine lines, and give you an instant glow. Perfect for dry or aging skin.
BHA (Salicylic Acid): Oil-soluble. It goes deep into the pores to dissolve oil and dirt. The ultimate enemy of blackheads and acne. Perfect for oily or acne-prone skin.
3. Top Product Recommendations & Comparison (iHerb Picks)
| Product Name | Acid Type | Best For |
| Cosrx, AHA/BHA Clarifying Treatment | Combo (AHA+BHA) | Daily gentle exfoliation for beginners. |
| Stridex, Single-Step Acne Control | BHA (2%) | Tough on acne and deep pore cleaning. |
| Isntree, Chestnut AHA 8% Essence | AHA | Brightening and smoothing dry, dull skin. |
4. FAQ: Quick Hits
Q: Can I use them every day?
A: Start with 2-3 times a week. Over-exfoliating can damage your skin barrier.
Q: Do I need sunscreen?
A: YES! These acids make your skin more sensitive to the sun. SPF is non-negotiable.
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