Review on ZMCARE Reusable Mascara Container: The Ultimate Sustainable Solution for Mascara by Karen Perez

I wanted to use this to store a carrier oil (like castor oil) and maybe mix it with something else later. I tried the brush with some oil on my eyebrows. You can drip some oil or wet the embroidery part because it is heavily covered with oil. More than it takes to raise your eyebrows. I also used this oil for the ends of my hair. The same caution applies to dabbing excess off the stick before use. I also think it's a smart way to travel with one of these wands without having anything in the tube and keep the spool clean so I can use it when I'm putting on my brow makeup and that want to comb through the product. The coils feel comfortable and durable. Containers appear solid (plastic).