| 摘要 |
The present invention relates to a microneedle, a plastic mold for manufacturing the same, and a manufacturing method thereof. In particular, the micro needle is used for injecting skin care substances or drug agents into the skin. The microneedle is made of a biocompatible material selected from a group constitute by polysaccharides, polyvinyl alcohol, a carboxyvinyl polymer, chitosan, hyaluronic acid, a cellulose polymer, and salts. |
