MARY KAY Clinical Solutions Retinol 0.5 serum RRP £65. Powered by pure, high-concentration retinol, this nighttime serum takes the offensive against wrinkles, discolouration and loss of firmness. Retinol is dermatology’s gold-standard ingredient, demonstrated to help prevent signs of ageing you can’t see yet, while helping to reverse advanced visible signs of ageing.
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