Acetyl Tetrapeptide-5, also known as Eyeseryl® peptide, is a clinically studied bioactive peptide composed of four amino acids designed to target skin aging signs such as puffiness, dark circles, and loss of elasticity. With its excellent anti-aging, anti-edema, and moisturizing properties, this peptide helps improve skin firmness, elasticity, and hydration, especially in delicate eye-area formulations.
Scientific studies have demonstrated that Acetyl Tetrapeptide-5 reduces under-eye puffiness, prevents glycation, and enhances lymphatic circulation, resulting in smoother, brighter, and more youthful-looking skin. Its high biocompatibility makes it ideal for sensitive and mature skin care formulations.
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Hexapeptide-9 (CAS No. 1228371-11-6) is a bioactive short-chain peptide composed of six amino acids that delivers powerful anti-aging, moisturizing, and skin-repairing benefits. Scientifically known for stimulating collagen synthesis, it enhances skin elasticity, reduces fine lines, and accelerates tissue regeneration.
With its small molecular weight and excellent skin penetration, Hexapeptide-9 acts directly on the dermal matrix, where it promotes the regeneration of structural proteins such as collagen types I and III, fibronectin, and laminin. This activity improves the firmness and smoothness of the skin, making it a popular active ingredient in luxury skincare products, anti-wrinkle formulations, and post-treatment recovery creams.
Numerous in vitro and in vivo studies have demonstrated that Hexapeptide-9 can significantly reduce wrinkle depth, enhance dermal density, and restore youthful smoothness when used consistently. It is non-irritating, biocompatible, and suitable for all skin types, including sensitive and mature skin.
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