It’s official – retinol has gone mainstream. Beauty insiders may have been shouting about it for years, but Retinol has officially emerged as ‘2022’s biggest beauty trend’ based on research by Hey Discount. With over 2.1 billion Tiktok views (and counting), 635,000 Instagram hashtags and almost 9.3 million Google searches, Retinol is reaching and resonating with a younger demographic than...