Can I mix two different brands of the same color hair dye?
Chemically speaking yeah it’s fine, it won’t HURT you. Make sure it’s the EXACT same color though or it could be bad news. One might use one kind of chemical and the other use a different…they could react badly and give you a whole different color all together. My best advice would be to not mix, and just wait it out until the store gets some more back in, or go to a different store to look.