The derma stamp for hair growth 025 mm is basic it is the best choice for beginners to start learn Ergonomic Wide ergonomic handle easier to hold and apply pressure Simple and convenient to use just press the microneedle Stamper lightly on the skin and the essence is instantly absorbed To use simply remove the protective cover and press vertically up and down on the area of use HOME USE Only takes 60s to complete a session The stamp should be cleaned before and after each use