1. Effective for hair growth: Microneedles can quickly open small channels in the skin, effectively injecting nutrients into the skin, activating the body's natural healing process and producing collagen, which is crucial for hair growth. These small channels also help improve the absorption of skin and beard growth products.2. Effective skin care: use this self roller with your favorite beauty cream or your favorite essence to achieve the best effect. Our facial rolling needles help prevent hair loss and scalp, as well as treat scars, acne, wrinkles, pigmented spots in the arms, back, and shoulder areas. Reduce pores, clean acne, prevent wrinkles, stretch marks, acne, and minimize the appearance of acne scars.3. Safe and painless: Thanks to a 0.5mm fine needle tip, it can minimize skin damage and promote product absorption through the skin, making it suitable for home use. Specifications:Color: BlackSize: 0.5mm fine needle tipMaterial: ABS Package includes: 1 * micro needle roller Attention: 1. Due to manual measurement, please allow for minor errors. Please ensure that you do not mind before bidding. 2. Colors may vary depending on the monitor, please understand. Hello, please pay attention to your shipping address when purchasing products. If your shipping information (such as name, street, house number, doorbell/email without a name, etc.) is incorrect, the order will not be delivered correctly.