Pyrroloquinoline Quione Disodium Salt 20mg - 4 Fl Oz - 120 Servings - 120 Day Supply - Made in USA All Natural Ingredients

It is definitely effective, for the first fortnight or so of taking it I was experiencing some paradoxical tiredness but that eventually subsided… it’s definitely a larger dose of PQQ per serving so the side effects are way more pronounced. But then again, the higher dosing benefits seem to outweigh the side effects, at least for me for my short term usage.

This PQQ health product does not give a boost of energy like caffeine would, but it rather produces a gentle increase of vitality in different parts of the body. Thus, I am less tired (physically), more "alert" (mentally), and feeling great over all. And the taste is good! I put 17 drops of it under my tongue, and it is quickly absorbed in my blood. Thus, its good effect can be felt rapidly.

This supplement is in the form of a liquid. I had never heard of Pyrroloquinoline Quinone Disodium Salt before and thus did some research on-line. It sounds like a great supplement for brain and overall health with rare and few side effects. I put 12 drops under my tongue and held it 15 seconds to try it. I noticed no adverse side affects at this dosage. It has a bit of a strong alcohol taste. I like that is it made in the USA but I am not sure why it is not produced in a GMP certified facility since this company has had GMP certification in the past. For this reason, I gave it 3 stars instead of 5. If it is produced in a GMP facility and labeled accordingly, I would increase my rating to 5 stars. (Note: They have misspelled Quinone is their title and write-up.)

The description says ": Rich with peppermint oil, our Pyrroloquinoline Quinone 593 mg supplement is lighter on your tummy." But this product is 20mg per serving, and 500+mg PQQ would be way too high of a dose. So that discrepancy alone makes me question the quality a bit. They do claim 3rd party testing for purity, so I'm assuming the above is just a typo, but still - doesn't inspire confidence. The optimal PQQ dose is 10-40mg per day, so at 20mg per serving this product hits the mark. The flavor is minty and not bad, but I would prefer less flavor. In terms of convenience - I definitely prefer capsules. It's just not convenient for me to take 20+ drops of a liquid every day consistently. Overall - it appears to be fine quality PQQ and you get a lot of servings per bottle. But I will opt for capsules next time.

My husband has taken PQQ over time, but the pills did not seem to help him as much long term as I had hoped they would. This version was worth trying. HOW THIS COMES This comes well wrapped and is easy to take with the eyedropper inside the blue glass bottle. HOW HE TAKES THIS My husband takes this under the tongue as advised. He holds it there for about 15 seconds and then swallows it. DOES IT HELP? So far this seems to have helped his focus to be better than it was. I noticed since I started giving this to him, instead of bugging out and playing solitaire when faced with a lot of work, he is actually getting up and DOING things. He is not organized, but I don't think that is anything a supplement can help-haha. THE BOTTOM LINE This seems to help an overwhelmed husband with focus and he is actually getting things done. MY RATING FIVE STARS. If this continues to help him, then I would consider a repurchase. The pills he has taken did not work quite like this.