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Biopure Labs - 2% Methylene Blue - High Concentrate - 100ml Aqueous Solution - Ultra High Purity - USP Pharmaceutical Grade - Made in Canada -
Biopure Labs, Methylene Blue 1% Solution 30ML – Ultra Pure, USP Grade Solution, Free of Formaldehyde, MADE IN CANADA – NEW Leak-Proof Bottle & Mess-Free Dosing – (30ml, 50ml, 100ml, 250ml) (30ML)