A potent antioxidant, vitamin A fights free radicals, promotes the growth of healthy new skin cells and strengthens the skin. Vitamin A also helps to regulate sebum production and is regularly used in the treatment of acne, eczema and psoriasis. It can be found in cod liver oil, liver, egg yolks, organic grass-fed butter. For plant-based sources, look for vegetables that contain provitamin A (beta-carotene) which is converted into vitamin A in your body. This includes foods like carrots, sweet potato and GLOW Inner Beauty Essential.