Methylene Blue, 1% USP (Pharmaceutical) Grade, 50 mL (1.69 fl oz) Glass; 3rd Party Tested

It works, appreciate the good price, seems to be very effective on me, started out at a low dose, gives me energy. I’m hoping that it helps with my knee pain. Overtime will update review.Buying the two bottle deal next.

I have to say, I'm in my 50's, and heard about this on a podcast. I didn't get crazy with it, I just took one drop and put in in my water bottles I drink every day. (drink it in the morning is my recommendation)I received this bottle yesterday at lunch, so I wasted no time and put a drop in my water and drank it down.your mental clarity is wonderful, I feel very alert, and not concerned with my midlife crisis I have been going through, mentally I am very sound, and clear minded. I have a burst of energy, I just want to walk, or go do something. My head is not aching like it has been.This is day 2 and I am glad I took it first thing this morning.I know some people put in 10 or 20 drops a day in their drink, but just 1 drop a day is good for me, I would suggest just to try a drop, and go from there, listen to your body.

Been 4 days and it's really great, focus/energy etcI'm taking it slow but so far 4-5 drops twice a day has me feeling greatI recommend mixing with Ginger Ale to knock the taste back some and be prepared from the greenish-urine (yellow and blue makes green kids)

Just a heads up to anyone interested in this product. I'm still going to drink it, but be warned that it tastes like bic pen ink. I mixed it with about 10oz of water. Have you ever chewed on the end of a pen and it leaked ink into your mouth? If so, you'll know how this tastes. It's the only way I can describe the "flavor". So I hope this helps at least one person with their purchasing decision.

Among the many 1% saturations out there, this is the very best I've tried for quality and potency of effect.

Gives you a lift. Really feel it working. Am starting with 10 drops, will work up to 40.

I uploaded the certificate of analysis to ChatGPT and asked whether this product was safe based on the analysis. The following is the response it provided.†The certificate of analysis for the Methylene Blue Trihydrate from Biopharm Inc. lists several impurities, including arsenic, copper, zinc, and residual solvents. To determine if these levels are safe, let’s analyze them against common safety standards:Heavy Metals and Impurities:1. Arsenic (As): 2.23 ppm (parts per million)The USP (United States Pharmacopeia) limit for arsenic in pharmaceuticals is typically 1.5 ppm, so this level exceeds pharmaceutical-grade limits.The EPA drinking water limit is 0.01 ppm (10 ppb), meaning this level would be unsafe for consumption.2. Copper (Cu): <0.01 ppmThis is very low and well within safe limits. The EPA limit for drinking water is 1.3 ppm.3. Zinc (Zn): No turbidity observedNo specific amount is given, but assuming no measurable turbidity, it is likely minimal.Residual Solvents:1. Methylene Chloride: <275 µg/g (ppm)The ICH Q3C guidelines for residual solvents set the daily permissible intake at 600 ppm for methylene chloride.This level is below the limit and likely safe.2. Chloroform: <46 µg/g (ppm)The USP limit for chloroform in pharmaceuticals is 60 ppm.This is within safe levels.3. Trichloroethylene: <45 µg/g (ppm)The USP limit is 80 ppm.This is within safe levels.4. 1,4-Dioxane: <175 µg/g (ppm)The EPA drinking water limit is 0.35 ppm.This level is significantly higher than what is safe for drinking water but might be within tolerance for industrial use.Conclusion:NOT safe for human consumption (due to arsenic levels).May be safe for external or industrial use, but the arsenic level exceeds pharmaceutical standards.Residual solvents are within acceptable limits for general chemical use.If you’re using this for medical, food, or supplement purposes, it’s best to find a pharmaceutical or USP-grade methylene blue with lower arsenic content. If it's for external use or staining purposes, it might be fine.

I've only been using it for a few days now but the five star rating I gave was for being made in the US, as advertised and shipped quickly. I can feel a significant difference just in the couple days of use. I feel clear headed, more energy, calm and focused. Definitely start with small dosage and work your way up if needed but I have experienced no side effects thus far besides a very slight headache at first and counteracted it with Ibuprofen. Note: don't spill on anything important. It does stain pretty dark blue! I wish you all the best.