Lab-Grade Methylene Blue Powder, 25g - The Curated Chemical Collection

U will need to take close to 1-2 mg/kg or 0.8-1.6 mg/lb. per day. In one or two divided doses. U pee green, it will stain your porcelain throne

I love this Methylene Blue powder. It fits my needs perfectly because it is in powder form, so I only use a bit at a time and I can't go wrong with it.

But one cool thing about this is the color it makes your pee, would be hilarious for someone to use this before a probation tinkle test lmao

Yes I investigated the quality under a microscope. Fantastic product.

Good for home science project. However, I realized later that it is not the best value for the same product. However considering it did its job I’m still happy with the purchase.

Unfortunately, I made the mistake of buying a bottle from another seller that was complete fake! I guess I got lucky with this product, since it is authentic, and what they claim it to be. Hoping Amazon will refund me for the fake stuff.

I liked that it arrived on time. I used it to treat my coy fish that got sick from a neighbor spaying for bugs,

As described, fast shipping. Works for my purposes and good price also.