VITAMIN B3, NICOTINAMIDE, SERUM (SDL12633)
https://www.scanlabglobal.com/shop/sdl12633-vitamin-b3-nicotinamide-serum-sdl12633-7905
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Measures niacin in serum for pellagra risk. Low levels confirm deficiency, guiding nicotinamide for dermatitis or diarrhea.
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