1. Promote Collagen: Hyaluronic injection pen stimulates the skin regeneration response and promote the production of collagen type III, which will make your skin white and delicate.2. Beautiful Skin: Continued use of this professional facial injector pen will bring you more radiant, plump and healthy skin, which will make you look younger and beautiful.3. Multifunction: Electric injection pen is suitable for fine lines, wrinkles, loss of firmness and elasticity, dullness, uneven skin texture, hyperpigmentation, blemishes and enlarged pores.4. Convenient Use: You just need to charge the main unit before the procedure, replace the cartridge, and then you can enjoy delicate skin care and unique skin spa at home.5. Excellent ABS: Electric hyaluronic injection pen with USB charging cable and 2 modes, made of stable ABS material, which is firm and sturdy, can be used for a long time.Specification:Item Type: Hyaluronic Injection PenMaterial: ABSProduct Color: GreenProduct Mode: 03 mode, 05 modeBattery Type: Lithium Battery(Included)Battery Capacity: 2000mAh Power Supply Mode: USB ChargingHow to Use: Dosage Instructions:After the dose adjustment in 03 mode is turned on, press the 03 mode key to switch to the 03 mode. Now the screen shows 0, press the 03 mode key again, the screen shows the number 3, which means the minimum dose is 0.03 ml. The number 3 on the button represents a dose of 0.03ml, the number 4 represents a dose of 0.04ml, and so on, the number 9 represents a dose of 0.09ml, and the number A means that 0.1ml can be entered. Number 3 shows the minimum dose and A indicates the maximum dose.After the dose adjustment in 05 mode is turned on, press the 05 mode key to switch to the 05 mode. Now the screen shows O, press the 05 mode key again, the screen shows the number 3, which means the minimum dose is 0.03ml. The number 3 on the button represents a dose of 0.03ml, the number 4 represents a dose