2 Pack Pharmaceutical-Grade Methylene Blue 1% Solution (60 mL), USP-Grade, Third-Party Tested, Formaldehyde & Alcohol-Free, Methylene Blue for Humans in Amber Dropper Bottles

Wow! I was skeptical about this, especially after the 4th day since it wasn't changing anything. However, the 5th day when I was at work and felt 100% as if I had just gotten out of the shower a minute ago (fully awake, aware and alert) THE WHOLE DAY.....I knew it was working. I usually have some good down time with white noise from various things that make me drowsy and almost fall asleep but never felt a hint of it while taking 6 drops of this in the morning in my Powerade. Every day after that has been full power mode the whole day and yes.....my urine is blue now 😆. No negative side effects noticed and have been telling co-workers about it, too! It's been working so well in bought 2 more on prime day. This brand is legit.

Deffinatly feel the difference using this product. 20 to 40 drops and my energy level is through the roof. I mix it with tea or cranberry juice and use a straw. This keeps the staining to a minimum. Highly recommend

Great product, helps improve energy!

Great quality. Everything was as expected. Not a bad price. It feels more absorbent in sunlight. Felt better clarity.

I purchased this to test the social media hype about it being good for your brain's health, support memory functions etc.The product appears pure and well packaged. It is easy to use (just be careful to use glass containers because it could color plastics). What I have to say is merely my anecdotal experience of using it daily for over a month (10-15ml - = 5=7.5mg doses).This product is 100% water soluble. It may stain but it will go away if washed with enough water.It colors your mouth blue, so better take it before you brush your teeth.It will color your pee, so don't be alarmed when your urine becomes greenish blue. It doesn't color your eyes or skin so no one will think you turned alien.Does it work?It may have improved my sleep some during the first week. I felt more tired and ready to sleep at bedtime than usual, and I slept better than usual. This may be due to it's known effect on serotonin pathways. However, if what I felt is even the result of consumption of Methylene Blue, it seem that my body adjusted to it and the effect is much smaller now.I did not recognize any difference in my mental energy, my cognitive functions or my memory. To be honest, those are probably normal anyway, including the growing difficulty of retrieving names from memory - no improvement there. Also I have a benchmark of my Duolingo word-pairing time-limitted exercises scores, which have stayed quite the same.The limited literature on this product cites a 40-50mg daily doss to assist in cognitive function of Alzheimer patient. Since I don't have Alzheimer, I am not going to try going so high.So to summarize - this product is as good as advertised, but I am not sure it is needed or helpful to people who don't have issue of braincells mitochondrial health.

Stains your entire mouth blue ! There are no directions given with this product . Upon applying a dropper of this horrid tasting solution I was left with a blue mouth and teeth that was difficult to rinse off even after brushing. I have no idea how to take this , whether I need to take it sublingually or mix with water .

Great energizing effect! Best price for the purity and potency.

I'm 5' 10", 215 lbs. I tried one dropper in a glass of water - zero effects. Next day, I tripled the dosage - again, zero effects. It also has a bitter taste if you choose not to add some kind of sweetener. But what makes me nervous is the BLUE COLORED URINE this product creates. This makes me very nervous: A useless product with a weird after effect. NOT RECOMMENDED