Bikini Model talks Pre-Workout Supplements.
Pre Workout Supplements are designed to give you energy for your workout. They normally have caffeine, amino acids, vitamins, etc. to help increase your workout drive. You normally will be able to workout harder and longer when you take them. But because they have caffeine don’t take too much or take them everyday. I normally take them in small dosages 2-3x a week for those hard workout when I need that extra drive. And don’t take them too late at night or you won’t sleep.
Nlaforher.com sells a good one I use. Enter coupon code Bikini and they’ll give you 10% off.