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Social media users are boasting online that an over-the-counter remedy can act ‘like fertiliser for your eyebrows’.
Commonly prescribed drug minoxidil, sold under the brand name Regaine in the UK, has long been available as a hair loss treatment.
But research also suggests the medicine, you apply to the scalp daily, may prove just as effective at thickening brows.
When used two or three times a week, the drug ‘significantly’ improves eyebrow hair growth, advocates say.
Other medics, however, have cautioned the treatment is not licenced for this use and may even trigger side effects including hair loss ironically, if used incorrectly.
In one TikTok seen 386,000 times, London-based consultant dermatologist Dr Aamna Adel recommended two per cent minoxidil — found in Regaine for Women.
Giving instructions, she said: ‘We’re gonna apply some Vaseline first to protect the skin around the eyes.