This is a fiber mascara. This one mascara replaced the three mascara wands I used to use to get the same effect. This is waterproof so it holds the curl and it contains the fibers and the binder that sticks the fibers to the tips of your lashes all build into this one formula so its like an all in one. The fibers add length to my short lashes and makes my lashes look really good, stand out and noticeable. Only downside is its hard to remove. Regular makeup remover doesn't remove it and this is where I'd recommend getting a cleansing balm because that can melt this mascara right off.