Describe: Net Content: 30ml(5ml*6) Shelf Life: 3 years 1. Utilizes microneedle technology to gently stimulate the scalp, promote hair follicle activity, and effectively improve hair loss. 2. This non-drug hair solution is safe and has no side effects, making it suitable for people with sensitive scalps. 3. Portable and easy to use, you can enjoy professional-grade hair care at home. 4. Clinically proven to significantly increase hair density and growth with continued use. 5. Suitable for men and women with various causes of hair loss, including genetics, stress, and postpartum hair loss, with a wide range of applications. Usage Method: Take a bottle of essence, open it,pour it into the roller device, install the microneedle head on the bottle and use the roller to roll evenly on the scalp. Precautions: 1. Keep out of reach of children to prevent accidental ingestion. 2. If you feel unwell, stop using immediately. 3. Do not use on damaged or swollen skin. 4. Store in a cool and dry place. Comments: 1. Manual measurement tolerance is 1 to 2 grams. Please do not mind. 2. Due to differences between various displays, the color of the picture may not accurately reflect the actual color of the product. Please refer to the actual item. Thank you very much! Package Includes: 1* Microneedle hair care