+22 Does Hair Coloring Expire References. According to vegan hair and beauty expert liis hainla, yes! If you're rediscovering an old box of unopened hair dye, are the expiration dates important?
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So sure, that's good to know. Web “hair color doesn’t [really] expire so long as the ammonia and peroxide haven’t been mixed,” he explains. According to vegan hair and beauty expert liis hainla, yes!
