✓ Pros
- USP pharmaceutical-grade purity
- Free of heavy metals and contaminants
- Independent batch testing
- Clear dosing droppers
✗ Cons
- Stains skin and fabric
- Interacts with SSRIs and MAOIs
Overview
Methylene blue is a century-old phenothiazine compound with mitochondrial-supportive properties under active longevity research. CZTL distributes a USP pharmaceutical-grade formulation that meets the purity bar required for serious experimentation.
Science Review
Low-dose methylene blue acts as an alternative electron carrier supporting mitochondrial respiration. It has been studied for cognitive aging, ischemia-reperfusion injury, and as an adjunct in neurodegenerative-disease research.
Ingredients Analysis
Single-ingredient pharmaceutical-grade methylene blue USP in a pharmaceutical-grade solvent. No dyes, no fillers, no surfactants. Heavy-metal limits documented by COA.
Who It Is For
Researchers and consumers seeking verified-purity methylene blue for self-directed wellness protocols under medical supervision.
Who Should Avoid It
Anyone on SSRIs, SNRIs, MAOIs, or with G6PD deficiency. Pregnant or breastfeeding individuals.
Final Verdict
CZTL delivers one of the highest verifiable purity grades in the consumer methylene blue category. The combination of USP grading, batch testing, and clear dosing tools earns it our editor's pick.
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