Melanotan-I (MT-1) is a linear 13-amino-acid analog of alpha-melanocyte-stimulating hormone engineered for prolonged melanocortin-1 receptor activation, making it a research tool in pigmentation and photobiology studies. Its resistance to enzymatic degradation supports long-duration exposure experiments. This product is a white lyophilized powder at >=99% HPLC purity in a sealed vial. We provide batch documentation, flexible pack formats and worldwide shipping for laboratory and distributor buyers. Storage at 2-8 degrees Celsius in the original sealed container is recommended to preserve stability, and the material should be protected from light and moisture. Our sales team confirms specifications, availability and transit time before dispatch, and every parcel is packed with sufficient cushioning for international transport.