The keratin used in our hair loss food supplement is derived from sheep's wool, a noble material that respects the animal, which is exclusively shorn (not slaughtered). The sheep selected are raised in New Zealand, and their keratin is particularly rich in amino acids similar to those found in human hair. As an alternative to the liquid pipette format of Mama Hair, discover our hair growth capsule, Hair Essentials, which also contains this patented keratin.