Definition of BHA in US English:



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    ‘AHAs and BHAs can cause photosensitivity, so a good sunscreen is a must’
    • ‘Cosmetics with alpha-hydroxy acids (AHAs) and beta-hydroxy acids (BHAs) as their key ingredients were found to be increasingly popular among consumers.’
    • ‘Unlike AHAs, which work at the surface level of the skin, BHAs can cut through sebum and oil, exfoliating inside the pores to prevent breakouts.’
    • ‘AHAs and BHAs do different things but are both good for you, so I take turns using them at different times.’
    • ‘Those with blemish-prone skin may prefer to use a BHA peel that uses salicylic acid derived from willow bark.’