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.

This stuff works wonders, though the taste isn't that great. It's completely safe to use and will change the way you feel. Highly recommend this

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.

I used 3 drops in a glass of water and within 30 min felt a clear mental boost. Highly recommend, it's legit stuff here.

Lo recomiendo.

I like how bitter it taste..just me.Hopefully it has some positive effect on the system, can't really know. Mouth will definitely stain, one should chase it with a little lemon juice water to remove the blu tongue.

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 recently tried the Methylene Blue, 1% USP (Pharmaceutical Grade), but I’m not entirely convinced about its purity. While it seems to work for my intended purposes, I can’t help but feel uncertain about the quality compared to other brands I’ve used in the past. The product description claims it’s pharmaceutical grade, but I haven’t seen enough independent verification to feel fully confident in the quality. The bottle is well-packaged, and the liquid appears to be a consistent blue, but without lab testing, I can’t confirm its authenticity.It’s a decent product for now, but I’m hesitant to fully endorse it until I have more certainty regarding its purity. I would recommend caution if you’re looking for something with proven quality or if you have very specific uses in mind.