Calcium hydroxylapatite is a naturally occurring mineral form of calcium apatite, primarily found in human bones and teeth. It is composed of calcium, phosphate, and hydroxide ions, contributing to the structural integrity and strength of these tissues. This mineral plays a crucial role in the biological processes of mineralization and bone formation. In medical and cosmetic applications, calcium hydroxylapatite is used as a dermal filler to reduce wrinkles and enhance facial volume. It stimulates collagen production, promoting a more youthful appearance. Its biocompatibility makes it a popular choice in aesthetic treatments and orthopedic applications.