Vinco's OsteoSheath combines various forms of bioavailable calcium: Microcrystalline Hydroxyapatite (MCHC). Amino Acid Chelate. Citrate. and Phosphate. The formulation aims to support healthy bone density management through this blend of calcium sources. The inclusion of multiple calcium types is designed to offer a comprehensive approach to supporting bone health. The product's intent is to provide a combination of ingredients that contribute to the maintenance of bone density.