Methylene Blue USP Grade 8oz Bottle Refill - 1% Stock Solution

✨ Pure and Safe: USP Grade Methylene Blue — 8oz Bulk Liquid Drops (Value Size) NeuroBlue Methylene Blue Liquid Drops, now in a bulk 8oz bottle — a long-lasting supply of USP pharmaceutical-grade, third-party lab-tested Methylene Blue. Made in the USA in a facility held to the highest quality standards, giving you more product per bottle without compromising purity. ✨ Maximum Purity: UV-verified at 99.9–100.4% purity — the same pharmaceutical-grade quality as our smaller sizes, now in bulk. 🇺🇸 Made in the USA: Manufactured domestically with a proven track record of strength and consistency — about 85% of our customers come back for more. 🔒 Heavy Metal Free: Independently tested and certified free of heavy metals. 🔒 Formaldehyde Free: No formaldehyde, no harsh preservatives, no fillers — just clean, simple formulation. 🧴 Bulk-Size Amber Glass Bottle: 8 fl oz (236mL) amber glass bottle with a built-in dropper — the same trusted packaging as our 2oz bottle, scaled up for better value and fewer reorders. 🔬 Precise, Reliable Dosing: Every 1mL (20 drops) delivers 10mg of 1% Methylene Blue — about 0.5mg per drop. One 8oz bottle provides roughly 235mL of usable product — a significantly longer-lasting supply than our standard 2oz size. 🌱 Easy Clean-up: Spills happen — lift stains fast with lemon juice, lime juice, or ascorbic acid. Why choose the 8oz bulk bottle? Ideal for regular users, practitioners, or anyone who wants to save on cost-per-mL versus smaller bottles — same USP-grade purity and third-party testing, just more of it.