Do you urinate blue if you take Methylene Blue?

Not necessarily. Blue or green-blue urine is common with methylene blue, but not everyone notices it. It depends on the dose, hydration level, metabolism, and how concentrated the urine is.

Signs that methylene blue may be authentic

If you're buying pharmaceutical-grade or supplement-grade methylene blue, a few clues can help:

✅ Deep blue colour

• Genuine methylene blue is a very intense dark blue.
• Even a small drop should strongly stain water blue.

✅ Stains easily

• It readily stains skin, clothing, paper, and plastic.
• If it looks weak or washed out, that can be a concern.

✅ Blue/green urine

• Many people notice blue, green, or turquoise urine within a few hours.
• This is due to methylene blue and its metabolites being excreted by the kidneys.
• However, absence of blue urine does not automatically mean it's fake.

✅ Known source and testing

• The best indicator is a supplier that provides:
  • Certificate of Analysis (CoA)
  • Third-party purity testing
  • Pharmaceutical or USP-grade material

What blue urine means

Methylene blue is reduced in the body to leucomethylene blue and then metabolized further. Some is excreted unchanged, causing the characteristic urine colour.

People taking:

• 5–10 mg may notice only a slight tint.
• 20–50 mg often report obvious blue-green urine.
• Higher doses almost always produce visible colour changes.

Things that do NOT prove authenticity

❌ Blue urine alone
❌ Feeling more energy
❌ Strong taste
❌ Dark bottle colour

A counterfeit or impure product could still cause blue urine if it contains some methylene blue.

The strongest evidence of authenticity is:

1. Independent laboratory testing.
2. A CoA showing purity (typically ≥98–99%).
3. Testing for heavy metals and contaminants.
4. Using a reputable manufacturer with pharmaceutical-grade raw material.

For authentic Methylene Blue order HERE