Isntree Hyper Retinol EX 1.0 Serum is a potent anti-aging serum designed to diminish fine lines and wrinkles, enhance skin firmness, and strengthen the skin's moisture barrier with a combination of 1% Retinol EX, 5 peptides, and 15 ceramides. Its lightweight, milky formula absorbs quickly, also containing TECA to protect the skin and reduce inflammation.