VITAMIN B12, ACTIVE HOLO TRANSCOBALAMIN (SDL12631)
https://www.scanlabglobal.com/shop/sdl12631-vitamin-b12-active-holo-transcobalamin-sdl12631-7903
https://www.scanlabglobal.com/web/image/product.template/7903/image_1920?unique=18393fc
Measures active B12 (holoTC) for early deficiency. Low holoTC suggests B12 lack, guiding oral or injectable supplementation.
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