Yellow Maca is the most common variety and it is a great all rounder. It is what is sold by most merchants. It is great for balancing female hormones and for male sexual energy.
Red Maca has been proven to be the most effective variety for combating male prostate issues. It has also been shown to be effective at reversing the effects of aging and protecting the skin against sun damage.
Black Maca is considered the most potent of the 3 varieties. It has been shown to be the most effective variety for increasing fertility in men and women. It is also used to combat fatigue and to assist with learning and memory.