Vegan Collagen: Youthful Skin, Ethical Choices, Part 1 of 2

Those who want to try it [collagen] are advised to contact the manufactures to clarify its source. Most collagen supplements don’t disclose this information and for good reason. Terrestrial sources can include a witch’s brew of kangaroo and rat tails, duck feet, horse tendons, alligator bones, and frog skin.