AUTEUR's 'Definitive Line Serum' works to tighten skin and reduce the appearance of wrinkles. Infused with hardworking actives with SYN®-AKE Peptide, this treatment encourages collagen production and cell turnover. The formula is also enriched with Vitamin E to help repair and alleviate the look of damaged skin. - Comes in a recyclable, refillable glass bottle - More than 50% of this product is made with certified organic ingredients - Vegan-friendly