Mandelic Acid: The Gentle Exfoliant Your Skin Has Been Waiting For

Brighten, smooth, and refine—without the sting

When your skin feels dull, congested, or uneven, the usual advice is to exfoliate. But for many, the thought of using acids brings one word to mind: irritation. If you’ve ever tried glycolic acid and ended up with redness or stinging, you’re not alone. The solution? Mandelic Acid — a gentle yet effective alpha hydroxy acid that smooths, brightens, and refines without compromising your skin barrier.

With its larger molecular size, Mandelic Acid works more slowly, giving you all the benefits of exfoliation without the drama. From reducing post-acne marks to boosting glow, it’s the unsung hero for sensitive and stressed skin — and a key player in PSA Skincare’s philosophy.

What Is Mandelic Acid?

Mandelic Acid is an alpha hydroxy acid (AHA) derived from bitter almonds. Like other AHAs, it works by loosening the bonds that hold dead skin cells to the skin’s surface, promoting cell turnover and revealing brighter, smoother skin underneath.

Its key difference? Molecular size. Mandelic Acid molecules are larger than those in glycolic or lactic acid. This means they penetrate the skin more slowly, reducing the risk of irritation while still delivering visible results.

What Does Mandelic Acid Do for the Skin?

1. Gently Exfoliates Without Irritation

Perfect for sensitive skin types, Mandelic Acid delivers effective exfoliation while minimising stinging, redness, or post-peel flaking.

2. Improves Skin Tone and Radiance

By increasing cell turnover, it helps fade hyperpigmentation, melasma, and post-acne marks for a more even complexion.

3. Reduces Breakouts

With its mild antibacterial properties, Mandelic Acid can help keep pores clear and reduce blemish frequency.

4. Smooths Fine Lines

Regular use encourages fresh, plump skin cells to rise to the surface, helping soften the look of fine lines.

Skin-Science Snapshot – A study found that 10% Mandelic Acid improved skin texture and pigmentation in 4 weeks without significant irritation.

Is Mandelic Acid Good for Sensitive Skin?

Yes. Its slower absorption rate makes it one of the best acids for reactive or redness-prone skin. It’s also a great entry-level acid if you’re new to chemical exfoliation.

If your skin is easily triggered by glycolic or lactic acid, Mandelic Acid offers similar benefits with far less downtime.

Can Mandelic Acid Treat Acne?

Mandelic Acid is both keratolytic (removes dead skin cells that can block pores) and antibacterial, making it useful for mild to moderate acne. It helps:

• Keep pores unclogged.
  
  

• Reduce inflammation.
  
  

• Fade post-acne pigmentation.
  
  

For stubborn or cystic acne, it works best alongside other treatments like salicylic acid or retinoids (but not in the same routine if your skin is sensitive).

How Often Should You Use Mandelic Acid?

• Beginners: Start 2–3 nights per week.
  
  

• Sensitive skin: Once or twice per week, then increase as tolerated.
  
  

• Experienced users: Can be used every other night if skin adapts well.
  
  

Always follow with a hydrating, barrier-supporting product—and SPF the next morning.

Does Mandelic Acid Make Skin Sun-Sensitive?

Yes. Like all AHAs, Mandelic Acid can increase your skin’s sensitivity to UV rays. This doesn’t mean you have to avoid it—it just means SPF 30+ every morning is non-negotiable.

Best Ingredients to Pair With Mandelic Acid

• Hydrators: Hyaluronic Acid, Glycerin.
  
  

• Soothers: Beta-Glucan, Panthenol, Centella Asiatica.
  
  

• Antioxidants: Vitamin C, Resveratrol, Green Tea.
  
  

Avoid pairing with other strong exfoliants (e.g., glycolic acid, high-strength salicylic acid) in the same routine if you’re prone to sensitivity.

Where to Find Mandelic Acid in PSA Skincare

• HEROINE Glow Toner – 6% Mandelic Acid + Licorice Root + Kombucha + Centella Asiatica.
  

How to Use Mandelic Acid in a Routine

PM Routine Example for Sensitive, Stressed Skin:

1. Cleanse: Gentle, non-stripping cleanser.
   
   

2. Exfoliate: HEROINE toner (2–3 times per week to start with)
   
   

3. Hydrate & Repair: DEW HALO mist + THE MOST serum.
   
   

4. Moisturize: Barrier-friendly cream or facial oil.
   
   

Final Thoughts: The Smart Choice for Calm, Glowing Skin

If you’ve been avoiding exfoliation because of irritation or sensitivity, Mandelic Acid is a standout option. It proves you can achieve smoother texture, brighter tone, and fewer breakouts—without the downtime harsher acids bring. And when paired with PSA’s barrier-supporting actives, it becomes more than an exfoliant—it’s part of a skin reset.