This INNISFREE Retinol Green Tea PDRN™ Firming Serum is a travel-sized (0.16 fl oz / 5 ml) serum made to visibly firm skin, reduce fine lines, and boost elasticity. This vegan serum is made with 1% Triple Retinol Complex and 56% Green Tea PDRN™. At a deluxe mini size this product is perfect for on-the-go use and ideal for those looking to improve skin elasticity and youthful appearance while traveling. Serum is new and sealed!!