A Beginner’s Guide to AHAs

(And Why Your Skin Might Love Them)

If you’ve ever used a product labeled “glycolic,” “lactic,” or “mandelic,” you’ve already met AHAs — even if you didn’t realize it.

AHAs are one of the most effective ingredients in professional skincare when used correctly. Let’s break down what they are, how they work, and who they’re best for.

What Are AHAs?

AHA stands for Alpha Hydroxy Acid.They are water-soluble acids that work on the surface of the skin to exfoliate dead skin cells.

Unlike harsh scrubs, AHAs dissolve the “glue” that holds dead skin cells together, helping skin shed more evenly and efficiently.

What Do AHAs Help With?

AHAs are commonly used to improve:

• Dull or uneven skin tone

• Rough texture

• Fine lines and early signs of aging

• Mild acne and congestion

• Post-inflammatory hyperpigmentation (PIH)

✨ When used consistently, they help skin look smoother, brighter, and more even.

How AHAs Actually Work (In Simple Terms)

Your skin naturally sheds cells — but that process slows down as we age or when skin is congested.

AHAs:

• Speed up cell turnover

• Improve how light reflects off the skin

• Help products absorb better

• Encourage healthier-looking skin over time

This is why AHAs are a key ingredient in professional peels and corrective skincare programs.

Common Types of AHAs (And Who They’re Best For)

Glycolic Acid

Smallest molecule = strongest penetration

Best for:

• Thick or resilient skin

• Sun damage

• Texture + fine lines

⚠️ Can be irritating for sensitive skin if overused.

Lactic Acid

Gentler and hydrating

Best for:

• Dry or sensitive skin

• First-time exfoliant users

• Improving tone without aggression

Bonus: Helps support hydration while exfoliating.

Mandelic Acid

Large molecule = slow, gentle exfoliation

Best for:

• Acne-prone skin

• Sensitive skin

• Deeper skin tones

• Inflammatory acne

✨ A favorite in acne and pigment-safe treatments.

AHAs vs. Physical Exfoliation

AHAs exfoliate chemically, not physically.

That means:

• No scrubbing

• Less micro-tearing

• More consistent results

For most skin types, chemical exfoliation is safer and more effective than abrasive scrubs.

Can AHAs Cause Irritation?

Yes — if used incorrectly.

Overusing AHAs or combining them with too many active ingredients can lead to:

• Sensitivity

• Barrier damage

• Increased pigmentation

This is why professional guidance matters, especially when using AHAs for acne or corrective work.

Are AHAs Right for Everyone?

AHAs may not be ideal if:

• Your skin barrier is compromised

• You have active inflammation that hasn’t been calmed

• You’re over-exfoliating at home

This is where customized treatment plans (and professional peels) make a difference.

AHAs in Professional Treatments

In the treatment room, AHAs are used in a controlled, strategic way — especially in peel series.

Professional application allows us to:

• Choose the correct acid

• Control depth and exposure

• Minimize inflammation

• Maximize results

This is why professional peels often outperform months of at-home exfoliation.

Final Thoughts

AHAs are powerful, effective, and incredibly versatile — when used correctly.

The key isn’t using stronger acids…It’s using the right acid, at the right time, for the right skin.

If you’re unsure whether AHAs belong in your routine, a professional consultation can save you a lot of trial and error — and get your skin moving in the right direction.