Feature: 1. Low energy red light passes through the scalp, directly affecting the hair follicles and deeply nourishing the hair roots. 2. Improve the regeneration ability of collagen fiber, promote cell photochemistry, promote hair generation and growth. 3. With 160 irradiation points, the irradiation area is large and covers a wide range of scalp area How to Use: It is used 3‑4 times a week on average, and can be used once a day in severe cases. Use time and effect: Use 4 to 18 weeks to improve scalp oil secretion, hair loss will return to normal levels. Use for 18‑26 weeks to improve the hair growth environment, resulting in thicker, fuller, and healthier hair. After 26‑52 weeks of use, hair growth enters a full growth cycle, the number of hairs increases significantly, and the hair follicle germinal system returns to its original normal function. Specification: Item Type: Hair Growth Helmet Material: ABS Product Voltage: 100-240V Laser Chips: 160pcs Single Light Chip Diameter: <1cm / 0.39in Use Time: 20min Size: Approx. 25.8 x 20.2 x 12.8cm / 10.16 x 7.95 x 5.04in Laser Wavelength: 650nm Light Emission: 15° Single Laser Power: < 1MW Package List: 1 x Hair Growth Helmet 1 x Instruction 1 x Adapter Special Note: Do not use this product directly irradiate to the eyes! Especially children!