Were any animals harmed in the making of the BURST Floss? May 09, 2023 00:33 Updated No. The BURST Floss is not tested on animals. Related articles How is the BURST Floss different than other Floss? How long is the BURST Floss Refill and how long should it last? Is the BURST Floss waxed? Can I buy another BURST Floss case by itself? How do I subscribe to BURST replacement heads?