IF you're on the beauty side of TikTok, you'll have come across Medicube's PDRN balm. The Korean skincare buy is going viral as shoppers about its plumping effect, and it's just been reduced on Amazon. Medicube PDRN Pink Collagen Volume Multi Balm, £11.90 (was £18.59) The Medicube skincare balm has multiple functions, designed to hydrate,...