5 Essential Vitamins™ for healthy, soft skin. 5 Essential Vitamins: Vitamin E; Vitamin H; Vitamin C; Vitamin B5; Vitamin B3. VO5's unique formula with 5 Essential Vitamins helps to nourish, moisturize and hydrate your skin leaving it feeling soft, smooth and looking simply beautiful! That's the secret of VO5! VO5's unique formula with 5 Essential Vitamins helps to nourish, moisturize and hydrate your skin leaving it feeling soft, smooth and looking simply beautiful! That's the secret of VO5! This product not tested on animals.