Testofuel is a testosterone booster that is targeted at those of later years looking to regain their youth. This means that some compounds are angled towards addressing aging symptoms—rather than directly targeting the low testosterone cause.

Pros
Designed specifically for the very mature generation.
90-day money-back guarantee.
Free USA and UK shipping.

Cons
More expensive than Test RX for two and three-month supplies.
Doesn’t contain fenugreek, unlike Test RX.
Includes compounds (such as luteolin) that have little effect on testosterone.
Some users indicate the pill has a strange taste.