One of the best sellers at Avant, this age-defying, resurfacing cream is designed to be used day or night, combining signature ingredients to help illuminate dull skin and lessen the appearance of wrinkles and fine lines.. The Science. • Hyaluronic Acid aims to penetrate deep into the skin, hydrating and instantly helping to improve the appearance of fine lines and wrinkles.. • The combination of Shea Butter and Sweet Almond Oil, which are rich in antioxidants, high in vitamins E, A, D, and B, protein, and essential minerals, works as an emollient to keep your skin looking young and supple. It also helps tighten dull skin and lessen the appearance of wrinkles and fine lines.