Chromium Chloride
Chromium Chloride is a tier 3 form of Chromium, used in 700 on-market products and providing 19.5% elemental chromium by weight.
700
on-market products
tier 3
quality tier
19.5%
elemental fraction
Basis: CrCl3 x 6H2O, hexahydrate (commercially/laboratory-standard soluble form; anhydrous CrCl3 at 0.328 is a poorly-soluble solid rarely used directly -- flagged assumption)
Why this tier: Produced significantly lower 24h urinary Cr than picolinate in the same crossover study -- cheapest/most common multivitamin form but weakest absorption signal. Chloride was tested as a component of a multivitamin-mineral product, with urinary Cr as an indirect measure of absorption.
Source: DiSilvestro RA, Dy E. 2007, PMID 17499152