Inosine explained: what it is and its chemical family

Inosine belongs to a group of molecules called purine nucleosides, according to the chemistry dictionary of the European Bioinformatics Institute. One product we reviewed lists inosine, and one label prints its amount: ProtoFlow lists 50 mg per serving of 2 capsules.

OOHOHOHONNNNHOOHOHOHONNNNH
In the products we reviewed
1, its label prints the amount

What inosine is

  • Inosine belongs to a group of molecules called purine nucleosides.1

How much inosine each product gives

Per serving, as each label prints it
ProtoFlow50 mg

The product we reviewed that lists inosine

ProductForm and servingInosine per servingOur scorePrice a bottleBuy
ProtoFlow#6 in prostate health supportCapsules2 capsules50 mg8.5$49Check price
Prices checked Oct 12, 2026

Questions people ask

What is inosine?

Inosine belongs to a group of molecules called purine nucleosides, according to the chemistry dictionary of the European Bioinformatics Institute.

Is inosine a purine or pyrimidine?

Inosine belongs to the purine nucleoside group, according to the chemistry dictionary of the European Bioinformatics Institute.

Which supplements we reviewed contain inosine?

ProtoFlow lists inosine in its capsules. One product we reviewed lists it.

How much inosine is in ProtoFlow?

ProtoFlow's label prints 50 mg of inosine per serving of 2 capsules.

Sources

The products, amounts and prices come from each product's label and checkout, as its review shows them. AI drafts our pages from listed sources, figures are checked against them, and we have not tried the products.

  1. 1EMBL-EBI ChEBI, inosineebi.ac.uk/chebichecked