how many drops in a mL?

10 drops = 5 Mg, 2 x day is the usual dose. The literature works in Mg rather than Ml.

There is no contact number for compass lab, although they state that a certificate of analysis is available on request. why not just publish it here?

You can simply send a message through Amazon but the certificate is also available in the pictures section.

237 ml is 8 oz. size in discription is 50 ml. is it one 237 ml bottle or five 50ml bottles?

It is one 237ml bottle. I ordered the 50ml bottle initially but realized I would need the larger bottle if I wanted to take Methylene Blue in the larger doses I need. I'm taking 20 drops twice a day at present so am going through the 50ml bottle in 3 - 4 weeks. Loving the results so far. Greatly helps my short term memory issues.

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Methylene Blue Pharmaceutical Grade, USP Grade, Third-Party Tested Brain Health Dietary Supplement for Humans, No Formaldehyde, Made in USA (1% 237ml Bottle)

Methylene Blue Pharmaceutical Grade, USP Grade, Third-Party Tested Brain Health Dietary Supplement for Humans, No Formaldehyde, Made in USA (1% 237ml Bottle)

Product ID: 391752614

Details

Age Range (Description)
Adult
Brand
COMPASS
Color
Blue
Global Trade Identification Number
Item Form
Liquid
Manufacturer
Compass

🧠1% USP-grade purity

🧪Third-party tested for potency

🛡️No formaldehyde, pure & safe

RM1232

Duties & taxes included

In stock

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Description

🧠 Elevate your cognitive edge with every drop!

TRUSTED TESTED - Third-party lab tested for purity and free from harmful additives like formaldehyde.
ANTIOXIDANT POWERHOUSE - Loaded with antioxidants to protect memory and cognitive function from daily stressors.
SHARPER MIND EVERY DROP - USP pharmaceutical grade methylene blue ensures maximum brain support with clinical purity.
POTENCY PRESERVED IN GLASS - Packaged in easy-dispense glass bottles to maintain antioxidant strength and freshness.
MADE IN THE USA QUALITY ASSURED - Crafted under strict standards by Compass Laboratory for reliable brain health supplementation.

This 1% Methylene Blue supplement from Compass Laboratory is a pharmaceutical-grade, USP-certified brain health enhancer. Packaged in glass to preserve its antioxidant potency, it is third-party tested to guarantee purity and free from formaldehyde. Designed for adults seeking to protect memory and sharpen mental faculties, it offers a trusted, lab-verified solution made in the USA.

Specifications

ASIN	B09JVXQRRP
Age Range Description	Adult
Best Sellers Rank	#46,819 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #389 in Lab Chemicals
Brand	COMPASS LABORATORY
Brand Name	COMPASS LABORATORY
Color	Blue
Container Type	Bottle
Customer Reviews	4.6 out of 5 stars 97 Reviews
Flavor	Unflavored
Global Trade Identification Number	00656043504328
Item Form	Liquid
Manufacturer	Compass Laboratory
Manufacturer Part Number	2021-1B
Model Number	2021-1B
Number of Items	1
Primary Supplement Type	Methylene Blue
Product Benefits	Memory Health
Special Ingredients	Methylene Blue
Specific Uses For Product	Brain
Supplement Formulation	Individual Supplement
UPC	656043504328
Unit Count	8.00 Fluid Ounces

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