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Acids - The Difference Between AHAs vs BHA

Want to know the difference between an AHA and a BHA? You've come to the right place. Not all acids are made equal, so we’ve put together a handy guide to help you find the best one for your skin type.

Alpha Hydroxy Acids

Types: Glycolic, Lactic, Lactobionic


✓ Exfoliates surface of the skin

✓ Stimulates collagen

✓ Increases cell turnover

✓ Improves moisture content

Best For: Dry, sun damaged, sensitive, or ageing skin

Good For: Oily, blemish prone or congested skin

AHAs, or Alpha Hydroxy Acids, if you want to get technical are water soluble acids renowned for their exfoliating abilities. Derived from natural sources (such as fruits and sugar cane) AHAs work by dissolving the bonds that glue dead skin cells together, helping to alleviate the look and feel of grey, dulling skin. This makes AHAs ideal for dry, sun damaged or ageing skin as they not only increase cellular turnover – hello radiance – but also improve the moisture content of skin for a more radiant, hydrated complexion. Their smaller molecular structure also makes them ideal for sensitive skin types, as they are less likely to cause irritation than BHAs.

You'll find AHAs in our Blue Diamond Resurfacing Peel, Refining Facial Polisher and our Copper Peel

Beta Hydroxy Acid

Types: Salicylic


✓ Exfoliates on and within the skin

✓ Increases cell turnover

✓ Decloggs blocked pores

✓ Controls sebum production

Best For: Oily, blemish prone, or congested skin

Good For: Sun damaged or ageing skin

There is only one BHA – Beta Hydroxy Acid – out there and you’ve probably heard of it, Salicylic Acid, a king among acids. Whereas AHAs – such as Glycolic Acids or Lactic Acid – are water-soluble and most effective at exfoliating the surface of the skin, BHAs are oil-soluble, making them effective both on and within the skin. This is a major win for oily, blemish prone and congested skin types as a BHA not only increases cellular turnover but also helps to penetrate oil-clogged pores, helping to tackle skincare concerns at the source, rather than just topically.

You'll find Salicylic Acid in our new Midnight Radiance Mask


With salicylic acid for brilliantly brighter skin
Shop The New Launch