A toenail grows out in 12 to 18 months, so it is very important to stick to it for 7 minutes at a time, 2 times a day for 3 months and you will see a significant improvement. Treatment principle:910nm infrared light and 407nm blue light shines light into the toenail causing the temperature of the nail plate to rise to 43℃ to 51℃, resulting in thermal damage and thus producing stunning effect. FSA or HSA eligible solution for nail fungal infections, helping to restore nail health and significantly improve symptoms such as nail deformation and painful walking. Keep your nails short. When trimming your toenails, you want to cut them horizontally and keep your toenails shorter than the ends of your toes. Sterilize your nail clippers before using them. To disinfect nail clippers, wash them with soap and water, then wipe them with alcohol. Purchase Notes 1. The laser light of one of this nail fungus laser is infrared light, it is not visible, so it's NOT ! 2. A toenail takes up to 12-18 months. Curing nail problems requires determination and persistence. Please insist on using it continuously when you want it to have a significant effect, the short-term effect may not be obvious. Color: Black Material: ABS Package Contents: 1 * Nail Fungus Treatment Device (The color of the digital display light is random and does not accept specified colors; it may be different, but it does not affect the use)