Second half of workout has the same endurance and strength as first half. I welcome the slight tingling flush sensation because it means relief is on the way. Four before your workout is great.

If it doesn't have carnosyn® in the ingredients list, it’s a gamble. Too many fillers on the ingredient list. If there is any actual product in this it is a minute nearly non-existent amount.

This product has no return free offer which is other cosmetic or otc rx used to have it in us. Also no way to return. And this product is not returnable even if unopened.