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The Gentle Exfoliator That Makes Your Skin Glow: Mandelic Acid

From ferulic acid (an antioxidant, which protects skin against the dulling effects of pollution), to glycerin (which keeps skin moisturised, soft and supple), there are so many buzzy ingredients in skincare. But right now, experts are obsessed with just one in particular. Enter: mandelic acid.

Of course, acids are nothing new. Glycolic and salicylic acid are arguably the two most popular exfoliating ingredients among those looking to fade pigmentation, increase radiance and prevent blackheads. But mandelic acid is a little more under the radar…

What is mandelic acid?

Many skincare acids are derived from natural plant sources, for example salicylic acid comes from willow bark and glycolic acid is extracted from sugarcane. Mandelic acid is similar. “Mandelic acid is an alpha-hydroxy acid (AHA) named after the German word for almond,” says Dr Elif Benar, dermatologist and founder of, as it is derived from the extract of bitter almonds. Dr Elif adds that mandelic acid can be used by nearly all skin types, including sensitive skin. It works by exfoliating the top layers of the skin, resulting in a brighter, more glowy complexion.

What are the benefits of using mandelic acid in skincare?

“Mandelic acid is a powerful ingredient that has a multitude of benefits,” says Dr Elif, who lists treating ageing skin (such as wrinkles, dullness and skin texture changes), melasma, liver spots and sun damage, which can often manifest in dark spots. “This skin-loving AHA helps to accelerate cell turnover and increases the production of collagen for a more youthful appearance,” Dr Elif adds. “Mandelic acid also helps to regulate sebum (oil) production, and can help prevent breakouts in acne-prone skin.”

How should you use mandelic acid in skincare?

Dr Elif recommends incorporating mandelic acid into your evening skincare routine, and suggests looking for a leave-on, exfoliating toner. “Apply mandelic acid to clean and dry skin after cleansing and before moisturising,” she advises. “It is better as one of the first layers of skincare, followed by a cream. Simply pat it into the skin gently.” You can use cotton pad or your fingers if you prefer to be a little more eco-friendly.

Like all acids, proceed with caution. The key to seeing results from mandelic acid is to start slowly. “Start with a small amount at a low strength,” says Dr Elif, for example 5%. “Start by using mandelic acid a few times a week, then build up slowly to give your skin a chance to get used to it, and to help to prevent any side effects such as skin irritation.” If your skin is tolerating 5% mandelic acid well and you want to amp up the effects, Dr Elif suggests looking for a higher strength product, such as 8% mandelic acid.

How does mandelic acid differ from glycolic acid?

Both mandelic acid and glycolic acid are alpha hydroxy acids (AHAs) which exfoliate the top layer of skin. But it is reported that the mandelic acid has larger molecules than glycolic acid, so penetrates the skin in a slower manner, making it a tad more gentle on sensitive skin.

Are there any side effects of mandelic acid?

It’s a good idea to stop using retinol before starting with mandelic acid. “If you are using retinol, you should stop using it around 5 days before using mandelic acid to avoid skin irritation,” says Dr Elif. “Also avoid using mandelic acid if you have been in the sun recently. The possible side effects of mandelic acid are irritation, redness, swelling, itching and peeling, so if this happens, reduce the amount you use until your skin adjusts to it.”

As alpha hydroxy acids can make skin sensitive to sunlight, Dr Elif says that it is important to use minimum SPF 30 every day. “Otherwise, skin is more prone to damage if its not being protected by those harmful UV rays.”

You may also notice dryness and flaky skin. “This is normal, though, and should resolve within a few weeks,” says Dr Elif. “If your skin is sensitive or painful, stop using mandelic acid immediately and consult a skin specialist.


MEDIK8 Pore Minimising Tonic
MEDIK8 Pore Minimising Tonic


The Ordinary Mandelic Acid 10%
The Ordinary Mandelic Acid 10%

What are the best mandelic acid skincare products?

By Wishtrend’s Mandelic Acid Skin Prep Water, £20.10, contains 5% mandelic acid to lift away the top layer of cells and to uncover fresher, brighter skin. Decant a few drops on to a cotton pad and swipe all over your face post-cleanse, then follow with a lightweight moisturiser.

You can use Medik8’s Pore Minimising Tonic, £40, in the same way. It combines mandelic acid and gentle lactic acid for light exfoliation. If you’re after a serum and your skin can tolerate acids well, try The Ordinary Mandelic Acid 10%, £5.80, which is higher in strength. For extra hydration, apply your usual nighttime moisturiser over the top.


Credit: Original article published here.

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