Assertion: melanin | /r/CapableOf | filter out wavelength
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text: Another thing, it's not certain that melanin does filter out the wavelengths which produce vitamin D synthesis The value of melanin as a sunscreen says "The detailed structure of the absorption spectra of epidermal melanin pigmentation in vivo together with the reactivity of melanin precursors and metabolites to ultraviolet A (320-400 nm) and visible (400-700 nm)