This mascara cake is the first plastic free mascara that I've come across and what's so amazing about it is that you can keep your old mascara brush, wash and reuse over and over again!Cake mascara is an awesome zero waste product that can be used for so many uses, not just mascara - you can use as eyeliner and an eyebrow filler too as it comes in black and brown so you can choose your shade! This mascara cake from Bain and Savon is vegan and all natural using 100% organic preservative to avoid long term microbial growth. WHY I LOVE THIS You can choose the mascara wand you like - we all have our preference of brush - so just keep your fave when your mascara runs out, wash and use with this! It's totally up to you how much volume you get, with other mascaras you don't really have a choice but with this you can just add layers to go from a natural day look to a volume evening look! Note: Like all mascaras, it is important that you use this homemade mascara wisely. Proper use of mascara includes disposal of the tin. Homemade mascara should also be disposed of if found to smell different, strange, or especially pungent. It is unlikely and unusual, but all mascara does have the capability to grow bacteria.