Keramax® keratin used in the Alline proMEN dietary supplement is of natural origin and combines all 18 amino acids that make up the keratin molecule. The exclusive process used to extract this keratin protects its complete amino acid composition while also making it soluble, ensuring excellent absorption by the body. It is sourced from 100% natural New Zealand sheep’s wool and is obtained through shearing, so no animals are slaughtered or injured.