Most people now know about the dangers of over-exposure to the sun's ultraviolet rays. Producers of all kinds of sun lotions make a good income from catering to the need of protective measures. Studies on rats suggest it enhances protection against damage from ultraviolet rays, but it is not powerful enough to make it safe to rely on maca powder alone. Only people who apply maca externally can expect it to help in this area – there are no similar benefits for those who eat the root or its powder.

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