Vitamin A: The anti-ager Why we need it: In beauty circles, vitamin A (retinol) is known as the gold standard in anti-ageing. It works to stimulate cell renewal and refine fine lines and wrinkles, as well as improve the elasticity and overall skin health. Need to know: Retinol can make your skin sun sensitive, so use at night only, and protect your skin during the day with sunscreen. It’s not uncommon for it to cause irritation in high doses so if you’re concerned, introduce it slowly (every other night) to build up your skin’s tolerance. <img src="http://d3lp4xedbqa8a5.cloudfront.net/s3/digital-cougar-assets/nznow/2017/05/01/1493597092800_S1.jpg?width=690&height=&mode=crop&quality=75" alt=" "/> Vitamin B: The beautifier Why we need it: Vitamin B and its derivatives such as vitamin B3 (niacinamide) and pro vitamin B5 (panthenol), help to boost collagen, improve pigment...