Ingredient guide · S

Salicylic Acid

BHA, or beta hydroxy acid, is a gentle exfoliating ingredient loved in UK skincare for helping to clear pores and smooth skin texture. The most common form is salicylic acid, which is oil-soluble so it can penetrate deep into oily pores. It is a staple in cleansers, toners, serums and spot treatments for those prone to blemishes or dullness.

BHA — While modern skincare BHAs are usually lab-made for purity and stability, the best-know… | UK Lips ingredient guide

How it works in skincare

In cosmetics BHA works as a chemical exfoliant that loosens the bonds between dead skin cells on the surface and within the pore lining. Being oil-soluble, it travels into sebaceous follicles to dissolve excess sebum and debris, leaving skin clearer and smoother without the abrasion of physical scrubs. UK formulators often pair it with soothing ingredients to keep formulas gentle enough for regular use in everyday cleansers, leave-on toners and targeted serums.

Key benefits

  • Helps unclog and refine pores
  • Promotes smoother skin texture
  • Reduces the appearance of blemishes
  • Improves dullness and uneven tone
  • Suitable for use in both rinse-off and leave-on products
  • Gentle enough for regular use when properly formulated

Best for

oily skin, combination skin, acne-prone skin, congested skin, dull skin

Where it comes from

While modern skincare BHAs are usually lab-made for purity and stability, the best-known form, salicylic acid, is naturally derived from the bark of the white willow tree (Salix alba) and certain wintergreen leaves.

Products with Salicylic Acid

Not every product on UK Lips lists a full ingredient breakdown — so there may be many more formulas that contain Salicylic Acid than we can show here. These are the comparisons where we’ve confirmed it in the listed ingredients.

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