Listerine strips

Question

Hello, I was under the impression that this product may only be used once the chof-k hechsher appears on the product. Is this still the case ? Also, I noticed in another post, that these may used on a fast day. Even Tisha B'av ? Kindly explain. many thanks, Yitz

Answer

Answered by Aaron Abadi

There is no need for a Hechsher on this, it is not an edible food item. The same is the answer to your second question. AA