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Hydroxyapatite

Description

Hydroxyapatite is a naturally occurring mineral form of calcium apatite, with the chemical formula Ca₁₀(PO₄)₆(OH)₂. It is a primary component of tooth enamel and bone mineral, comprising up to 70% of human bone structure. In skincare and cosmetic applications, synthetic hydroxyapatite is utilized for its unique properties and biocompatibility with human tissue.

This ingredient functions as an effective remineralizing agent, particularly in oral care products where it helps restore tooth enamel and reduce sensitivity. In skincare formulations, hydroxyapatite serves as a gentle physical exfoliant and possesses oil-absorbing capabilities, making it suitable for oily and acne-prone skin types. Its particles can also act as a soft-focus agent, temporarily filling fine lines and improving skin texture.

Hydroxyapatite exhibits antioxidant properties, potentially protecting the skin from free radical damage. Its mineral composition supports skin barrier function and may aid in maintaining proper hydration levels. Some studies suggest that hydroxyapatite can stimulate collagen production, contributing to improved skin elasticity and firmness.

When formulating with hydroxyapatite, it's crucial to consider particle size and concentration to ensure optimal efficacy and safety. This versatile ingredient is generally well-tolerated and can be incorporated into various skincare products, including serums, moisturizers, and sunscreens.