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Canthaxanthin is one of the two major carotenoids in nature, the other being Beta Carotene. Carotenoids have powerful antioxidant properties which defend against damaging singlet and triplet oxygen, a by-product of ultra violet rays and photosynthetic metabolism. These free radical scavengers prevent harmful and uncontrolled oxidation. Carotenoids also protect plants from direct ultra violet damage by absorbing high energy ultra violet protons and then safely defusing the energy along hydrocarbon chains.
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