Biopure Labs MB-100-2 Methylene Blue 2%, 100 ml

Biopure Labs MB-100-2 is a 100 ml liquid methylene blue solution listed at 2% assay and USP grade. The listing describes a bottle with a squeeze lever cap and claims 1 mg per drop, but presents no usage or medical guidance beyond its own suggested administration methods.

At a glance

The listing describes the solution as 2% and claims a dispensing rate of 1 mg per drop.
The manufacturer claims a shatter-resistant bottle with a squeeze lever cap for controlled dispensing.
The listing gives sublingual use or mixing with a drink as suggested administration methods. These are product claims, not medical guidance.

Price

$25.49Save 15%

Reference price: ~~$29.99~~

Price checked: Nov 14, 2026

View offer

Pros and cons

Pros

The 100 ml liquid format is identified with a specific model number and a listed USP product grade.
The manufacturer describes a squeeze cap intended to dispense measured drops, which may be convenient for users who need drop-based handling.

Cons

The listing promotes the solution for health effects, but the supplied evidence does not establish those benefits or provide a clinical basis for use.

Technical specifications

12 specifications

Identity
Brand	Biopure Labs
Model	MB-100-2

Product details
Product grade	USP
Percentage assay	2
Purity percentage	99.98
Molecular formula	C16H18ClN3S
Volume	100 ml
Form	Liquid
Container	Bottle
Country of origin	Canada

Dimensions and weight
Dimensions listed	3.81 x 3.81 x 12.7 cm; 110 g
Weight listed	110 g

What to know before buying

Listing details to confirm

The listing's suggested use, health claims and purity or USP descriptions are manufacturer claims, not independently verified specifications or medical advice. Consult a qualified healthcare professional before considering use, particularly because dosing and suitability guidance is not established here. The claimed 1 mg-per-drop amount is also not accompanied by drop-size or measurement details.

What’s in the box

Included

100 ml bottle

Who is it for?

A good fit for

Buyers specifically seeking a 100 ml liquid methylene blue product with a listed 2% assay and USP grade.
Users who prefer a bottle format with a manufacturer-claimed squeeze cap for dispensing drops.

Less suited to

Anyone seeking established medical benefits, clinician-approved dosing, or evidence of effectiveness from this product listing.
Buyers who need independently substantiated purity, certification, or dosage-per-drop measurements.

Biopure Labs MB-100-2 Methylene Blue 2%, 100 ml · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.4 / 5 · 95 ratings

5 stars67%67%
4 stars16%16%
3 stars11%11%
2 stars3%3%
1 star3%3%

Customer feedback describes perceived quality positively, while reported views of effectiveness are mixed. That distinction matters here: the listing specifies a liquid product and its stated grade, but neither those claims nor favourable quality impressions establish health effects or clinical effectiveness.

Positive themes

Customer feedback is positive about perceived product quality.

Mixed feedback

Customer opinions about effectiveness are mixed.

Frequently asked questions

How much solution is in the bottle?

The listing specifies a volume of 100 ml.

What concentration does the listing give?

It lists the percentage assay as 2. The manufacturer separately claims 1 mg per drop, but the supplied details do not explain drop size or how that amount is measured.

What grade and purity are listed?

The product details list USP as the grade and 99.98 as the purity percentage. These are listing claims, not independent verification.

Does the product have established health benefits or dosing guidance?

The manufacturer makes health-related claims and suggests sublingual use or mixing with a drink, but the supplied information does not establish those benefits or provide validated dosing guidance. Seek advice from a qualified healthcare professional.