Methylene Blue USP Grade 1.0% Solution 50 mL (1.69 fl oz) High Purity with Aseptic Filling Techniques (Premium Dropper) 3rd Party Tested.

My 1st review for this product is missing not sure why! This product arrived quickly! Really like the way it was packaged no leaks! & the bottle is exactly as pictured, I haven't been constitent with using it, but did notice a tingle in my head 1st time no pain just a tingling feeling. I ordered 2 bottles based on my experience & the quality of the product, I would reccomend this seller.

Product appears previously opened from bottom of flimsy box, inside incredibly thin bubble wrap of no value. Dropper top slightly broken. Not sure if I should trust product.

This was our first attempt at M.B. thought it was o.k., but then bought some from UFC Bio and it looked so much different when mixed not just the color but the clarity, was completly different. We experimented with the two brands1/2 cup of water 10 drops Of Dr. Olfactics liqued M.B., and 1/2 cup UFC Bio, 1 gram powder mixed correctly with 100ml of purified water, 10 drops. Not only was the color a lot different, but the clarity was completely different, something was clearly not right. It took 2 cups of water to get the weak aqua color of Dr. Olfactics when mixed with the one gram powder water mix from UFC Bio. E mailed the UFC Bio. company which said"unfortunatly some our competitors are not using a correct dilution". So they may be 3rd party tested for purity, but not neccessarily tested as to percentage used, which according to our testing made the Dr. Olfactics 1/4 of 1%. I've done research into UFC Bio and believe them to be correct it made perfect sense because everyone was saying ther was a slight taste to 1% M.B. which we were not getting at all from Dr. Olfactics and it just wasn't nearly as dark blue as it was supposed to be. Once again it appears you get what you pay for as Dr. Olfactics is the least expensive premixed liqued on Amazon.

Top of dropper cap was broken off in shipping.Dropper looks to be too short to reach the bottom of the bottle to get the last liquid out.

Not as secure as some others upon arrival. Will use external only.

Going to wait to re-order after finished with bottle to see how I feel when not using it :-)

I bought and paid for this product myself and it was not part of the vine program.I listened to several social media folks talk about the benefits of ingesting this stuff. I took a few drops a day in water for about 5 days. Then the gastrointestinal problems began. Constipation, bloating, then painful sharp gas. I felt inflated like a balloon. I discontinued using this and treated the constipation which revealed blue/greenish movements. That's when I realized that this was sitting in my intestines probably killing off my beneficial digestive microbes. So I am taking probiotics to help correct this. I don't recommend taking this orally.I have not needed to treat any external wounds recently but I plan to use this topically the next time I do have a small wound.I can't say if I received any benefit at all from taking it orally. The effects that I had were immediate exhaustion, which I thought may be from some sort of die off effect, followed by the above conditions a few days later.It's up to you if you don't mind playing guinea pig on yourself. I just wanted to put this out there so people will know what could possibly happen if ingested.Despite the negative effects that I had I still gave it 4 stars because obviously it does something, just not what I wanted it to.

Beware of other Sellers selling Gentian Violet, which is violet. This is the real thing. It arrives blue, and stays blue.