Oyster peptide powder is a high‑bioactivity marine protein hydrolysate derived from fresh, high‑quality oysters (Crassostrea gigas or Ostrea edulis) through controlled enzymatic hydrolysis. This process breaks down large oyster proteins into small molecular weight peptides (typically below 1000 Da), significantly enhancing absorption and bioavailability while preserving the rich array of trace elements (zinc, selenium, copper), taurine, and glycogen naturally present in oysters. As a functional food ingredient and nutraceutical, it is widely recognized for its immune‑modulating, anti‑fatigue, and male reproductive health benefits, making it a premium choice for sports nutrition, wellness supplements, and healthy aging formulations.