This is extremely common with niacin ingestion. If you look up a lot of pre-workout drinks (no xplode for a specific example) it's one of the most common compla

This is extremely common with niacin ingestion. If you look up a lot of pre-workout drinks (no xplode for a specific example) it's one of the most common complaints/mentions. I haven't used it in forever but when I did sort of just got accustomed to being itchy until it wore off. I've read that it can cause liver issues, though. I just quit taking pwo's altogether.