goop Beauty Youth-Boost Peptide Serum takes a 360-degree approach to visible aging, pairing a next-generation peptide with ceramides, niacinamide, bifidus postbiotics, and astaxanthin-rich microalgae instead of relying on one hero ingredient. It is clinically tested, with results published in a peer-reviewed medical journal, and works on all skin types, including sensitive. Applied morning and night to face and neck, it supports firmness, elasticity, even tone, smoother texture, and a healthy barrier, with visible improvement reported in as little as seven days. The clean formula is made without parabens, phthalates, silicones, or artificial fragrances and is never tested on animals.
