Much research has been carried out on supplementation of collagen and gelatine and its effect on skin. Specifically oral collagen supplements have shown to increase collagen in the small blood vessels and in the skin, and that the increases in collagen leads to improvements in skin elasticity, hydration and wound healing.
Further ingestion of glycosaminoglycans (GAGs) such as hyaluronic acid have also shown benefits for skin health and anti-aging. Bone broth is a rich source of GAGs including hyaluronic acid. The glucosamine and chondroitin in bone products also support this effect.
Oral collagen supplementation has been shown to provide protection from skin photo (UV) aging. Further oral collagen supplementation led to significant reductions in cellulite and skin waviness in normal weight women aged 25-50 years. So the effects are not limited to aging skin.
Dr Gus' Bone Tea has the highest collagen content of any bone broth available, and has more collagen than most collagen supplements per serving, making it a more effective collagen dose and less expensive.