Healthy Hair - Using our roller on the scalp promotes the formation of collagen in the skin, which increases the production of stem cells in the hair follicles for natural hair growth.SAFE - Our microneedle rollers are non-invasive and have a needle length of 0.50mm, making them accessible to even inexperienced users. It is risk-free and effective, and easy and painless.Rejuvenate - Our dermal rollers feature 0.50mm microneedles that promote natural hair growth to help fight hair loss, receding hairline and mottled facial hair more effectively and naturally.EASY TO USE - Our dermal rollers are a great alternative to expensive spa treatments, rolling gently on your scalp for ease of use and increased efficiency. Due to its size and structure, it is easy to clean and carry.Color: GoldPacking list: 1pcs