The Peter Thomas Roth "RETINOL FUSION NIGHT SERUM" in Mega Size 6.7 fl oz (200ML) is a powerful anti-aging skincare product formulated with retinol, a proven active ingredient for reducing wrinkles and improving skin texture. This unisex night treatment is suitable for all skin types and is animal cruelty-free, making it a safe and effective choice for achieving a more youthful and radiant complexion. Made in the United States, this serum is designed to be applied to the face and provides a concentrated formula for overnight use.