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  • PQQ Capsules with MGCPQQ® - 20 mg Pyrroloquinoline Quinone | 30 Capsules Packshot
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PQQ Capsules with MGCPQQ® - 20 mg Pyrroloquinoline Quinone | 30 Capsules

PQQ Capsules with MGCPQQ® - 20 mg Pyrroloquinoline Quinone | 30 Capsules

PQQ Capsules with MGCPQQ® - 20 mg pyrroloquinoline quinone per day, the Japanese branded ingredient in the amount used in human studies.

  • 20 mg MGCPQQ® (pyrroloquinoline quinone disodium salt) per capsule = per daily dose
  • Branded ingredient from Mitsubishi Gas Chemical (Japan) - obtained by fermentation, specified to a purity of at least 99%
  • Study-based dosage: 20 mg per day corresponds to the amount used in human studies with MGCPQQ® and to the maximum level of the EU novel food authorisation
  • Vegan & hypoallergenic - HPMC capsule, rice flour as the only carrier, no magnesium stearate, gluten-free, lactose-free
  • Lab-tested premium quality - made in Austria, every batch independently tested
  • 30 capsules = 30 days - 1 capsule daily, PZN 21029344
39,95 €
266,33 € 100g
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PQQ Capsules with MGCPQQ® - 20 mg Pyrroloquinoline Quinone | 30 Capsules

PQQ (pyrroloquinoline quinone) - the redox cofactor

  • PQQ (pyrroloquinoline quinone, also known as methoxatin) is a quinone compound with the molecular formula C14H6N2O8. It was identified in 1979 as a cofactor of bacterial enzymes and is sometimes referred to as "vitamin B14" - officially, however, PQQ is not a vitamin.
  • PQQ is a redox-active molecule: it can repeatedly accept and donate electrons. Research therefore investigates PQQ primarily in connection with mitochondria and cellular redox processes.
  • In nature, PQQ occurs in trace amounts in foods such as natto, parsley, green tea, kiwi, papaya and tofu - in the microgram range per 100 g. The 20 mg in one capsule is therefore well above the amount absorbed through a normal diet.

MGCPQQ® - a branded ingredient from Japan instead of anonymous powder

  • Green Naturals PQQ capsules contain the branded ingredient MGCPQQ® from Mitsubishi Gas Chemical (Japan) at 20 mg per daily dose - in contrast to many manufacturers who use PQQ of unclear origin without proof of a branded ingredient.
  • MGCPQQ® is obtained by fermentation with the bacterium Hyphomicrobium denitrificans and is specified to a purity of at least 99%. In 2017, EFSA assessed PQQ disodium salt as safe for healthy adults at up to 20 mg per day (EFSA NDA Panel, 2017).
  • The ingredient is documented in human studies: a randomised, double-blind, placebo-controlled 12-week study investigated 20 mg PQQ disodium salt per day in adults aged 20 to 65 (Tamakoshi et al., 2023) - in contrast to suppliers with 10 mg or less per capsule, which remain below the amount used in studies.

PQQ effects - what EFSA says and what research is investigating

  • There are currently no authorised health claims for PQQ according to EFSA. We therefore deliberately refrain from making efficacy promises and provide transparent information on the current state of research.
  • PQQ is being investigated in connection with mitochondria, inflammatory markers and cognitive parameters, among other things - for example in a human study in which 10 participants took PQQ in two study phases (Harris et al., 2013).
  • Compared with coenzyme Q10, which is itself part of the mitochondrial respiratory chain, PQQ is an independent redox cofactor - which is why the two substances are often considered together. At 1 capsule daily, 30 capsules last for 30 days.
PQQ Capsules with MGCPQQ® - 20 mg Pyrroloquinoline Quinone | 30 Capsules
PQQ Capsules with MGCPQQ® - 20 mg Pyrroloquinoline Quinone | 30 Capsules

  • Optimal time of intake

    Take 1 capsule daily with sufficient liquid, ideally in the morning with breakfast. Above all, regular daily intake at the same time of day is important.

  • Dosage and duration of use

    Daily dose: 1 capsule (= 20 mg pyrroloquinoline quinone disodium salt MGCPQQ®). We recommend continuous intake for at least 8 weeks; in human studies, PQQ was investigated over 12 weeks. The pack of 30 capsules lasts for 30 days. Do not exceed the recommended daily dose. For adults only, not suitable for pregnant or breastfeeding women.
Quality in focus. Discover what makes Green Naturals® PQQ special in terms of ingredient origin, purity and study-based dosage.
Quality criterion Green Naturals® Other manufacturers
Ingredient & origin ✔ Branded ingredient MGCPQQ® from Mitsubishi Gas Chemical (Japan) ✕
Purity & production ✔ obtained by fermentation, specified to min. 99% purity ✕
Clinical documentation ✔ investigated in randomised, placebo-controlled human studies ✕
Sensible dosage ✔ 20 mg per daily dose, study-based ✕
Regulatory safety ✔ EU novel food authorisation, EFSA safety assessment up to 20 mg/day ✕
Purity & laboratory testing ✔ made in Austria, every batch lab-tested ✕
Formulation & tolerability ✔ vegan HPMC capsule, only rice flour as carrier ✕
Transparency & responsibility ✔ clear notes on pregnancy & breastfeeding, no efficacy promises ✕
Practicality ✔ 1 capsule daily, 30 capsules = 30 days ✕

Our vision at Green Label® is to create products based on purity and transparency. Our approach is to source high-quality raw materials directly from leading producers worldwide to offer a product that is uncompromisingly committed to natural ingredients. Every capsule of our products carries the promise of purity, sustainability, and maximum effectiveness:

  • Premium active ingredients as pure substances, directly from leading producers.
  • Production and bottling under the highest pharmaceutical standards (GMP, ISO 22000:2018, HACCP).
  • Maximum avoidance of all additives; only valuable natural substances are used.
  • Vegan capsule shells, 100% free of PEG and other undesirable substances.
  • Packaging in environmentally friendly, non-toxic materials for optimal aroma protection.

My name is Dr. Hari Sven Krishnan, founder of Heilpflanzenwohl GmbH and chief pharmacist.

Together with an experienced team of specialists, including Stephan Walz (pharmacist), Marie Schröder (nutritional scientist), and Dr. Christiane Gras (immunologist), we developed Green Naturals.

The result of intensive research with a clear goal: to offer you natural, highly effective products. At Heilpflanzenwohl, quality and purity come first, because we are convinced: "The best medicine comes from nature – we just need to learn how to use it correctly."

Food supplement based on pyrroloquinoline quinone disodium salt
Ingredients: Rice flour, coating agent: hydroxypropyl methylcellulose (plant-derived); pyrroloquinoline quinone disodium salt.
Ingredients 1 capsule / day *NRV %
Pyrroloquinoline quinone disodium salt (MGCPQQ®) 20 mg **
* NRV % = Nutrient Reference Values according to Regulation (EU) No 1169/2011
** no reference available
Recommended Use: Daily dose: 1 capsule (= 20 mg pyrroloquinoline quinone disodium salt MGCPQQ®). We recommend continuous intake for at least 8 weeks; in human studies, PQQ was investigated over 12 weeks. The pack of 30 capsules lasts for 30 days. Do not exceed the recommended daily dose. For adults only, not suitable for pregnant or breastfeeding women.
Notes: Food supplements should not be used as a substitute for a varied and balanced diet and a healthy lifestyle. Do not exceed the stated recommended daily dose. Keep out of reach of young children. Store in a cool, dry place protected from light. This food supplement should be consumed by adults only, excluding pregnant and breastfeeding women. MGCPQQ® is a registered trademark of MGC (Japan).
Net quantity ℮: 15,0 g

What is PQQ?

PQQ stands for pyrroloquinoline quinone, a redox-active quinone compound that was discovered in 1979 as a cofactor of bacterial enzymes. PQQ occurs only in trace amounts in foods. In food supplements, it is used as a stable disodium salt - at Green Naturals as the branded ingredient MGCPQQ® with 20 mg per daily dose.

What is PQQ good for?

Research investigates PQQ primarily in connection with mitochondria, cellular redox processes and cognitive parameters, including in a randomised, placebo-controlled study with 20 mg per day (Tamakoshi et al., 2023). There are currently no authorised health claims for PQQ according to EFSA - we therefore make no efficacy promises.

What does PQQ do?

Chemically, PQQ is a redox cofactor: the molecule can repeatedly accept and donate electrons. In bacteria, it is a cofactor of certain dehydrogenases. In humans, research is investigating the role PQQ plays in mitochondria and in inflammatory markers (Harris et al., 2013). To date, there are no established effect claims for PQQ authorised by EFSA.

How does PQQ compare to Q10?

Coenzyme Q10 is itself part of the mitochondrial respiratory chain and is produced by the body. PQQ, by contrast, is an independent redox cofactor that is only absorbed from food in microgram amounts. Both substances are investigated in research in connection with mitochondria and are therefore often combined. Green Naturals PQQ contains only PQQ - Q10 can be supplemented separately if required.

When should I take PQQ?

We recommend 1 capsule daily with sufficient liquid, ideally in the morning with breakfast. A fixed time of intake makes the routine easier; what matters most is regular daily intake. In human studies, PQQ was investigated over 12 weeks - we therefore recommend continuous intake for at least 8 weeks.

Which foods contain PQQ?

PQQ is found in trace amounts in many plant-based foods, especially natto (fermented soybeans), parsley, green tea, kiwi, papaya and tofu. The levels are in the microgram range per 100 g. The 20 mg in one capsule of Green Naturals PQQ therefore corresponds to an amount that is practically unattainable through a normal diet.

What is MGCPQQ®?

MGCPQQ® is the branded ingredient of the Japanese manufacturer Mitsubishi Gas Chemical. The pyrroloquinoline quinone disodium salt is obtained by fermentation with the bacterium Hyphomicrobium denitrificans and specified to a purity of at least 99%. EFSA assessed it as safe in 2017; since 2018 it has been authorised as a novel food in the EU.

What is the dosage of the PQQ capsules?

One daily dose corresponds to 1 capsule with 20 mg pyrroloquinoline quinone disodium salt (MGCPQQ®). This is the amount used in human studies with MGCPQQ® and at the same time the maximum amount for which PQQ disodium salt is authorised in food supplements in the EU. Please do not exceed the recommended daily dose.

Does PQQ have side effects?

EFSA has assessed PQQ disodium salt as safe for healthy adults at up to 20 mg per day; the safety margin relative to the highest dose without observed effects in animal studies is 344-fold. As with any food supplement, individual intolerances may occur. Stick to the daily dose and consult your doctor if you have pre-existing conditions or take medication.

Is PQQ a vitamin?

No. In 2003, PQQ was discussed in the scientific literature as a possible new vitamin and is therefore sometimes called "vitamin B14". Officially, however, PQQ is not recognised as a vitamin, and there is no nutrient reference value (NRV). In the EU, PQQ disodium salt is authorised as a novel food for use in food supplements.

Can the capsules be opened?

Yes. The vegan HPMC capsule is easy to open; the contents can be stirred into water, juice or yoghurt, for example, and consumed directly. The reddish PQQ powder may cause slight discolouration. However, the easiest way is to take the whole capsule with sufficient liquid, ideally in the morning with breakfast.

Is the product completely natural?

Yes. PQQ is a naturally occurring compound; MGCPQQ® is obtained by bacterial fermentation rather than chemical synthesis. The formulation consists of only three ingredients: PQQ disodium salt, rice flour as a natural carrier and a plant-based HPMC capsule shell - free from artificial colours, preservatives and flavourings, vegan, gluten-free and lactose-free.

Is PQQ suitable during pregnancy?

No. In accordance with the EU novel food authorisation, this food supplement should only be consumed by adults, excluding pregnant and breastfeeding women. There is insufficient safety data for these groups. The product is also not intended for children and adolescents. If you are unsure, talk to your doctor or pharmacist before use.

Are the PQQ capsules available in pharmacies?

Yes, in Germany Green Naturals® PQQ can be ordered from online pharmacies or your local pharmacy under PZN 21029344 (PZN is a German pharmacy product number). Alternatively, you can get the PQQ capsules directly from our online shop - 30 capsules for 30 days. In other countries, the easiest way to order is via our online shop or online pharmacies.

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Sources

  1. Tamakoshi, M., Suzuki, T., Nishihara, E., Nakamura, S. & Ikemoto, K. (2023). Pyrroloquinoline quinone disodium salt improves brain function in both younger and older adults. Food & Function, 14(5), 2496-2501. DOI: 10.1039/D2FO01515C
  2. Harris, C.B. et al. (2013). Dietary pyrroloquinoline quinone (PQQ) alters indicators of inflammation and mitochondrial-related metabolism in human subjects. Journal of Nutritional Biochemistry, 24(12), 2076-2084. DOI: 10.1016/j.jnutbio.2013.07.008
  3. EFSA NDA Panel (2017). Safety of pyrroloquinoline quinone disodium salt as a novel food pursuant to Regulation (EC) No 258/97. EFSA Journal, 15(11), 5058. DOI: 10.2903/j.efsa.2017.5058

Remarks

  1. HACCP (Hazard Analysis and Critical Control Points) is a preventive system for ensuring food safety that identifies and assesses potential hazards in production and minimizes them through targeted control measures. The seal refers to the manufacturing process.
  2. This is how the grade is calculated: Grade calculation based on star ratings: 5.00 - 4.50 Very good, 4.49 - 3.50 Good, 3.49 - 2.50 Satisfactory, 2.49 - 1.50 Sufficient, 1.49 - 1.00 Poor. For the verification of ratings, no authenticity check of customer reviews is carried out. The ratings are combined from different sources, such as mail-order pharmacies and online marketplaces. Last updated: 20.10.26