TheÂ foodÂ writer and TV presenter, 59, explained in herÂ The Sunday Timesâ€™ StyleÂ column today how, while she has tried â€œnumberless creams, oils and unguents over the yearsâ€, itâ€™s a bottle of prickly pear oil that stands out.
â€œItâ€™s an unprepossessing little bottle, but what it contains is face-saving magic,â€ the cookery show host wrote.
â€œPut it on at night and youâ€™ll wake up looking as if youâ€™ve been to a spa by the sea,Â sleptÂ 10 hours a night and been off Twitter for a month.â€
Nigella added: â€œItâ€™s not just that it moisturises: it seems to heal my skin and make it so much more elastic.â€
She explained that after realising the benefits it was having to her complexion, she decided to use it on her â€œreptilian handsâ€ at night too – and it was able to reverse the effects of failing to regularly wear washing up gloves.
If thereâ€™s any excess, she rubs the ends of her hair with it – often negating the need for conditioner in the shower – and likewise dabs it on rough elbows and cuticles.
Nigella also revealed that to maintain her youthful looks she cleansesÂ make-upÂ off every night with a muslin cloth.
This has an exfoliating effect, she explains, which gets â€œrid of old, dead skin cells and keep my complexion brightâ€.
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