The Alastin Skincare Inhance Post-injection Serum is a travel-size product designed for skin firming. With a combination of water and glycerin as its main ingredients, this antioxidant serum provides broad spectrum UVA protection. This serum is suitable for all skin types and is part of a day and night treatment set. It is cruelty-free and paraben-free, making it a reliable option for women looking to enhance their skincare routine with effective active ingredients like glycolic acid.