METHYLENE BLUE

1% Solution made in our laboratories in France

Controlled by French laboratory according to ISO/COFRAC standards. Traceability by lot number.

Prepared & packaged in France

Documented independent analysis

Amber glass bottle anti-UV

View analysis results

25,90 € 22,90 €

Free shipping from 2 items

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Lot number on each bottle.

Methylene blue 1% solution bottles by Methyl.blue

Real photos, not AI-generated

A documented and traceable product

Preparation in our laboratories in France, with process control.

Analysis by independent laboratory according to ISO/COFRAC standards.

Results kept by lot and available on request.

Transparency

Raw material: international sourcing by lots. Preparation and controls carried out in France.

Made in our laboratories in France

Controlled and documented preparation process.

Independent analysis (ISO/COFRAC)

Control by an accredited third-party laboratory.

Traceability by lot number

Each bottle is identified by a unique lot number.

Real photos, not AI-generated

1% Solution – 100 ml bottle

1% Solution

100 ml bottle

Amber glass anti-UV

Pipette: 1 drop = 0.05 ml (0.5 mg of methylene blue)

Clear label + lot number

Current lot

BM1P-100ML-777-FR

The lot number changes according to production.

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French laboratory control

The main control values are presented below. The complete report is transmitted on request.

Measured concentration

1,00%

Compliant

Method / standard

ISO/COFRAC

Compliant

Controls

16 heavy metals

Compliant

Lot identification

BM1P-100ML-777-FR

Compliant

Latest analysis

October 10, 2025

Compliant

Laboratory

CTC Groupe

Compliant

View full report

Learn more

Everything about methylene blue

A complete guide to methylene blue: chemistry, history, applications.

Frequently asked questions

Preparation, reading the lot number, shipping and returns: our answers.

Contact us

For any question or further information, feel free to contact us.

Frequently Asked Questions

The product is prepared and packaged in our laboratory in Lyon (France), in the Chemistry Valley.

The lot number is printed on the bottle label. It allows to trace the production and access the corresponding analysis results.

You can request the full analysis report via the dedicated button on the analysis results page or via the Contact page.

Orders are shipped within 24-48 business hours. Shipping is free for metropolitan France from 2 items.

You have 14 days to return the unopened and still sealed product. The refund is made within 15 business days after receipt.

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