Most reviewers use the Gigi Wax Warmer ($29.51 on Amazon) to heat up the beads! You'll also need applicator sticks ($6.95 on Amazon for a pack of 100).
Promising review: "My frequent trips to European Wax Center was costing a lot of money, so I decided to get serious about self-waxing. I purchased a soft wax that you use with the strips, and then this. I really had a hard time getting my armpits done with the strips. They peeled off my skin, and required multiple passes. It hurt so much, and I was sure I'd never be able to do it. Last weekend, I decided to try the hard wax, and it was so easy that I just started waxing other parts of my body like my legs, upper lips, bikini area, and stomach strip. I did multiple passes, and it handled it all perfectly. I'll reserve this wax for my face, and underarms since I got no discomfort, and so far no ingrown hair using this wax. I will definitely be repurchasing." —JinxPhoenix
Get it from Amazon for $23.99.
To learn more, check out our Cirépil wax deep dive.