The Thorne k-2 says:

Menatetrenone (MK-4)

Other Ingredients: Medium Chain Triglyceride Oil, Mixed Tocopherols.


The Trace Minerals Research product says:

Supplement Facts
Serving Size 4 mL (0.8 tsp.)
Servings Per Container 15
Amount per serving %DV
Magnesium (ConcenTrace®) 400 mg 100%
Chloride (ConcenTrace®) 1120 mg 33%
Sodium (ConcenTrace®) 5 mg <1%
Sulfate (ConcenTrace®) 60 mg †
Boron (ConcenTrace®) 500 mcg †
†Daily Value not established.

Ingredients
ConcenTrace®. This product contains a full spectrum of naturally occuring minerals and trace minerals from ConcenTrace®, as found in the Great Salt Lake, an inland sea.

Suggested Use
Using the metered dropper, take 4 ml (0.8 teaspoon) daily with juice or food to mask the concentrated mineral flavor.

Allergen Info
contains no known allergens. Gluten Free.

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I'm not sure what it means to be "ionic." I was just trying to find a supplement without fillers, etc. He has had stomach problems with some capsules even though they say they are gluten free.