One strain on its own, at the highest count in the range.

HU58 is the Bacillus subtilis strain from MegaSporeBiotic, isolated and concentrated. Microbiome Labs sell it separately because practitioners often want to add more of this particular strain on top of the full blend.

It comes as 60 capsules. Microbiome Labs works on the microbiome rather than around it, and third-party tests every batch it makes in the United States.

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