| 摘要 |
PROBLEM TO BE SOLVED: To provide an immunopotentiator useful for recovering immunity and keeping health by applying to the skin. SOLUTION: Hydroxyapatite is used as the immunopotentiator. Powder of 100% hydroxyapatite or a mixture of hydroxyapatite and optionally added small amount of additive is applied to the skin. Alternatively, a slurry consisting of 20-30 wt.% of hydroxyapatite and water, to which a small amount of a pH adjusting agent and a thickener are optionally added, is applied to the skin.
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