1. wrinkle, whitening, freckle It is recommended to use 0.25mm---0.5mm long microneedles.
2. It is recommended to use 1mm--1.5mm long micro-needle to remove stretch marks (orange peel, slimming lines).
3. The hair growth treatment is recommended to use 1.5mm--2.0mm long microneedles.
4. Red bloodshot, eye is recommended to use 0.2-mm-0.3mm long microneedle.
5. rosacea, acne pit, scar repair recommended 1mm--1.5mm