With RefectoCil Sensitive you can finally offer a tinting service for clientswith sensitive eyes and skin and ensure that they have naturally beautiful,accentuated eyes too – day and night.- Silvernitrate product- Lasts up to 6 weeks- No burning- No irritations- Validated by testsRefectoCil Sensitive, BlackTints lashes and brows in a rich, pure black. For the best result,use on dark brown lashes/brows. Note: Not recommended tobe used on lashes/brows lighter than medium brown.RefectoCil Sensitive, Dark BrownTints lashes and brows in a beautiful dark brown. For the best result,use on medium to dark brown lashes/brows.RefectoCil Sensitive, Medium BrownTints lashes and brows in a warm brown color. For the best result,use on light brown to dark blond lashes/brows.RefectoCil Sensitive, Light BrownTints lashes and brows in a soft and light brown. For the best result,use on light lashes/brows.