Randy Holmes-Farley
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The first three bottles of RS Trace have a representative element each for the elixirs they contain not necessarily in this order: Iodine, Iron, and Potassium and those three are more like minor elements, not trace.
Just for clarification, by definition, iron and iodine are trace elements (fwiw, natural surface ocean levels of iron are so low as to be undetectable by ICP-OES or any hobby kit), and potassium is a major element.
Elemental Abundance | manoa.hawaii.edu/ExploringOurFluidEarth
- Major elements in seawater occur in concentrations greater than or equal to one-tenth of a gram per thousand grams of seawater (expressed as >0.1 g/1,000 g of seawater or >0.1 ppt). [= >100 ppm]
- Minor elements in seawater have a concentration between one-tenth of a gram per thousand grams of seawater and one-thousandth of a gram per thousand grams of seawater (0.1 to 0.001 g per 1,000 g of seawater, or 0.1 to 0.001 ppt). [= 1 ppm to 100 ppm]
- Trace elements in seawater have a concentration of less than one-thousandth gram per thousand grams of seawater (<0.001 g/1,000 g of seawater, or <0.001 ppt). [ = < 1 ppm]

