The Air Repair Protect + Prevent Hydrating Serum is a skin-enhancing antioxidant formula that helps protect against environmental stressors while providing an immediate boost of moisture. Inspired by the need to help skin combat harsh climates this serum utilizes Cold Resistant Technology which is a combination of proprietary ingredients that helps the skin adapt to temperature extremes. Size: .14 Fl Oz. Serum, Moisturiser, Hydrating Serum, Moisturizer, Facial Serum, Facial Skin Care, Facial Treatment, Skincare, Beauty Skin