Professor Caitriona Ryan, Consultant Dermatologist at the Institute of Dermatologists, and Raisa Boyd, who has suffered from psoriasis since she was 14, jo.
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“TikTok can make anything trendy,” says Dr Caitriona Ryan when I ask her about the growing popularity of anti-wrinkle creams, vitamin C lotions, and niacinamide-infused peptide serums among kids as young as eight.