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PQQ (Pyrroloquinoline quinone)

$ 19.95 (60 x 20 mg capsules)
PQQ (Pyrroloquinoline quinone)
PQQ (Pyrroloquinoline quinone)
PQQ (Pyrroloquinoline quinone)

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Allergen Notice:

  • Soy Free
  • Gluten Free
  • Non-GMO
  • Vegan

Buy Multiple Bottles and Save!

PQQ Double Pack -- $34.95     PQQ Triple Pack -- $49.95


  • SUPPORTS CARDIOVASCULAR HEALTH – Research has shown PQQ may be beneficial for supporting a healthy cardiovascular system.
  • SUPPORTS COGNITIVE HEALTH - Studies have shown PQQ may support cognitive health due to its neuroprotective properties.
  • PROMOTES MITOCHRONDRIAL BIOGENESIS - PQQ promotes the biogenesis of cellular mitochondria as well as supporting their efficiency at energy production.
  • MADE IN THE USA - Our PQQ is manufactured right here in the USA and is tested for purity and potency.


PQQ (Pyrroloquinoline quinone) is a small quinone molecule which acts as a REDOX agent, allowing it to reduce oxidants before being recycled back into an active form by glutathione, making it capable of acting again as an antioxidant.

The main benefit of PQQ supplementation is its ability to support the production and effective function of mitochondria, which play the key role of converting nutrients into energy which can be used by cells. There is also research suggesting PQQ may be beneficial for supporting cardiovascular and cognitive health.

Recommended Dosage

As a supplement for cognitive, cardiovascular, or mitochondrial health we recommend taking a dosage of 20 – 40 mg (1-2 capsules) per day on an empty stomach. It is not recommended to take a dose exceeding 80 mg (4 capsules) per day.

PQQ (Pyrroloquinoline quinone) Side Effects

When taken at recommended dosages, PQQ is extremely well tolerated and adverse side effects are unlikely to occur. While rare, some side effects reported from PQQ supplementation include headaches, drowsiness, and fatigue.

PQQ (Pyrroloquinoline quinone)  -   $ 19.95  (60 x 20 mg capsules)

Product ratings
Number of reviews : 19
Average rating : 4.9 /5
Seems to work well for me.
The PQQ was recommended for it's quality and price.
Excellent antioxidant
Excellent product
I received minor benefits from the product; not as much as I expected. Slight improvement in my energy level, and in my short-term memory loss!
Enhances cognitive function. Helps with memory and quick recall.
Product is excellent.
I first heard of this supplement from a Dr on an email and wanted to try it. This company has the best price point that I’ve found and the quality to match other more expensive products. Couple that with bundling and auto ship and you have a real winner! I have been way less forgetful since taking this supplement.
This gives me extra energy. I noticed it the very first week.
Great for immunity boost, more energy, overall health.
This the brand I like the best.
My husband uses this product to deal with a Parkinsonism as well as post-operative short-term memory loss. He currently takes 40mg/day and his doctor seems very impressed that his symptoms have stabilized and leveled off over the past year. He takes a total of 6 Doublewood Supplement products and we are hopeful that all these combined along with his other supplements are having a positive impact.
Great antioxidant, leading to increased immunity and better overall health. No side effects, have taken this for months now and appreciate its benefits.
PQQ is a very beneficial supplement that provides increased immunity and overall better well being and health.
I haven't been sick since I've been taking this product.
Great Products. I take them every day. Great for you Mind.
Good product. Easy to swallow. Good delivery service
Rapid shipment sent with detailed assay. Great value.
nice dose, reasonable price, none of my allergens in it.

* These reviews are the experiences of the individual customers that submitted them, results may differ from person to person.

Ordering from Canada?

Unfortunately we can't accept credit card payments from non-US credit cards through, but we've been working hard to make our products available in Canada and have a few options for Canadians to order.

Many of our products are available to purchase on, and are currently warehoused in Canada. If the products you're looking for are on, this will be the easiest and quickest way to order.

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Bacopa Monnieri Extract


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Order by Email

Send us an email at with what you'd like to order, and we will send over an invoice from another of our websites that can take international credit card payments. Once the invoice is paid we will ship out your order promptly.