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Oriveda's focus is on selling well-researched medicinal mushroom extracts of superior quality.

As a business we are focused on providing our customers with the best possible products, value-for-money and service. We are serving customers in over 85 countries.

Our business is based on common sense and pragmatism. We feel that every claim of quality should be backed up with hard facts.

All our products are tested by independent objective laboratories, not just for safety but in particular for active ingredients. You don't have to take our word for it when we claim premium quality - you can verify it. We share our test reports with our customers.

For some bullet-points just click here.


• Therapeutically speaking, ORIVeDA extracts are the most powerful extracts available worldwide, with guaranteed levels of the most important bioactive components and the highest bioavailability possible. And this is not just a marketing statement.

Our authorized supplement facts labels and Google make it easy to compare our products with others. As said, our Certificates of Analysis from independent third party laboratories are available on request.

• Since we started as a business we have always emphasized the use of extracts, being the only reliable way to accomplish therapeutic effects.

Already in 2012 we started specifying beta-glucans (the main active ingredient of most medicinal mushrooms) on our supplement fact labels. This was a time when 95 % of mushroom supplements had zero specifications (not being extracted) and the rest mentioned 'polysaccharides' at best, a broad term covering a lot of non-bioactive compounds, in the core unsuitable as a quality marker. Currently beta-glucans are widely accepted as a quality marker, using an AOAC-validated test method.

• We are the first ones specifiying cordycepin as a quality marker for Cordyceps and the first and only ones to specify the NGF-promoting compounds for which Lion's Mane is known - the terpenes. In short, we have set and pointed out quality standards since we started. This approach makes it easy for consumers to choose the right stuff and they're less likely to be deceived by marketing tricks. Make sure to check our FAQ for additional details.

• The value-for-money you get with our products is excellent. Not only are our prices often lower than others, but the level of bioavailable active ingredients in our extracts is also much higher, in some instances over three times higher than the best of the rest. So, instead of spending $ 90 on “product X” you only have to spend $ 30 on our product for the same therapeutic potential.
And on top of that, as said before, we guarantee the bioavailability of the bioactives; your body can absorb and digest them 100%, so the therapeutic potential is maximal. And all these claims can be verified - objective third party test results are available on demand.

• In SE-Asia medicinal mushrooms have been used for many centuries. These countries therefore contain probably the best-informed and most critical consumers. We are proud to be able to claim that we are currently the only Western company selling mushroom extracts on a large scale to this region.
• A lot of the research on which our products' reputation is built is available and can be downloaded for free from the resources-section of our site.

• We ship to almost all countries in the world, except warzones.With only a few exceptions, shipping is free for website orders, worldwide. We usually ship orders the next day.

• We offer maximum personal service: we are online 7 days a week and your questions will be answered in great detail. Those questions are important: they help us develop new ideas and products. Keep them coming!

• Our newsletter (2 - 3 times p/year) is offering more than just updates and marketing. We often include complete monographs related to our product-line and include discounts for subscribers. Register today!

To contact us, please use the online form.

ORIVeDA is a registered brand name of ORIGO Holding BV, Amsterdam, The Netherlands. All rights reserved.








Why Turkey Tail ?
Why Oriveda's PSP-50 ?
  • 180 v-caps @ 350 mg 
  • (2 months regular use)
  •  
  • > 20 % polypeptides
  • > 40 % beta-glucan
  • > 1.8 % polyphenols
  •  
  • • hot water extract •

Why choose ORIVeDA 's PSP-50 ?

Oriveda PSP-50 is the most potent Turkey Tail extract commercially available. It is also the only fully certified extract worldwide, with guaranteed levels of the main bioactive and bioavailable compounds.

In Turkey Tail the main bioactive compounds are beta-glucans (2 types) and polyphenols (anti-oxidants). Proteo-glycans (= PSP: glucans-linked-to-peptides) are also present but there's no easy way to determine their quantity.

We can guarantee the presence of these compounds and their bioavailability. To back up this claim we can supply extensive third-party test-reports on demand.

Click here to see our authorized 'Supplement Facts' label, which is based on those test reports.

more details...

PSP is an abbreviation of 'PolySaccharoPeptide': now in general known as 'proteo-glycan'. ORIVeDA's PSP-50 is identical to the original PSP as it was patented in China, over 25 years ago. In itself PSP is an improved version of the well-known Japanese PSK, which is older. (See our FAQ for the differences / similarities between these two)

ORIVeDA's PSP-50 has been cultivated and extracted using the original patented methods. The only difference is a significant higher purity due to the more advanced 21st century pharmaceutical techniques. Only pure COV-1® mycelium (the 'roots' of the mushroom) was used for the extract, having the highest level of the desired bioactives.

According to the original research the most potent source of 'PSP' is that COV-1® mycelium strain (more details here)  which should ideally have been cultivated using so-called 'deep layer cultivation' (growing it in sterile laboratory tanks, in liquid substrate). This technique is pretty standard in China but hardly used elesewhere, due to the high cost.

Cheap cultivation techniques are using rice/grains to grow mushrooms (solid substrate), but since it is impossible to isolate the spiderweb-like mycelium from the substrate in the end the final product is in fact 'biomass', not mushroom. It is contaminated with undigested substrate in the form of starch; levels can be as high as 80% (!).

Such products are not per definition without potential but in general their actual therapeutic effects are low and the value for money is poor. On top of that these products are in general not extracted, rendering them even less useful. They do not specify any bioactive compounds on their labels and a 2016 test report showed many of these product contained no beta-glucan at all, only starch. Research found that the immunological effects of mushroom extracts are up to 10 times higher when compared against non-extracted powders.

An objective and easy-to-follow mushroom supplement shopping-guideline can be found on our articles page. It explains facts like the above and others, good to know when shopping for mushroom supplements.

Recommended maintenance dosage: 3 capsules p/day. A leaflet with detailed instructions and background is included with every order.

Scientific research uses in general specialized, highly concentrated extracts to investigate the effects of medicinal mushrooms. ORIVeDA extracts are comparable in both composition and quality, so the research results you read about you can also expect from our extracts.

Extracted using hot water extraction followed by alcohol precipitation, identical to the original patented methods.

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* The statements on this page have not been evaluated by the FDA or the EFSA.
This product is not intended to treat, cure or prevent any disease.
Do not use this product instead of regular medication.

Why Turkey Tail ?

Coriolus versicolor (Turkey Tail) is probably the most intensively researched mushroom ever (since the 1970s). Below we've listed the main research subjects*.

Take notice: this list should not be interpreted as a list of medical claims!

For a more extensive background click here ( page opens in new window ).

• The potential to normalize the immune function

PSP has been used often during and after treatments such as chemo and radiation-therapy with the following recorded effects:

• Detoxing
• Hepatoprotective
• Improves symptoms of weakness, fatigue, poor appetite, nausea and vomiting, insomnia , anxiety, pain, night sweat etc.

A shared property of all medicinal mushrooms is immune-modulation: research has been investigating their potential to normalize our natural resistance against diseases for many decades.

Although undeniable proof has not yet been presented the outcome of research is promising. Turkey Tail has been investigated in particular as an adjuvant during anti-cancer therapy (chemo, radiation) and several clinical trials showed the effects mentioned above. The quality of life of patients during and after treatment improved significantly. For details, please check this pdf or go to our resources page for more publications.

A quote from that linked research report: "[...] these individuals report feeling improvement in their general condition, appetite, energy level, and ability to digest food. As a biological response modifier, PSP may help them to improve or maintain their immune status while decreasing the severity of the side effects associated with chemo-therapy and radiation. Its safety profile also makes it an ideal adjunct therapy to help in the treatment of cancer."

Two terms are applicable here:
• adaptogenic (helping us to adapt to the never-ending assaults on our health)
• BRM (a natural Biological Response Modifier - stimulating the body's natural defense mechanisms without any side effects).

Medicinal mushrooms do not cure or heal, they help the body to heal itself.

• The anti-inflammatory and anti-viral potential

These are of course overlapping the immune-modulating properties. Responsible for this therapeutic potential are the beta-glucan fractions and the proteo-glycans: glucans linked to proteins, a compound that was called 'PSP' or 'PSK' in older research.

The water-soluble beta-glucans in particular have triggered the interest of scientists: in the EU several health-claims based on beta-glucans have been ratified in the past years by the EFSA. Beta-glucans are e.g. thought to help with immune support and with normalizing of cholesterol levels.

Quite rare: Turkey Tail contains two different types of beta-glucan: both (1>4)(1>6)beta-glucan and the common (1>3)(1>6)beta-glucan.

Harmful micro-organisms, bacteria and viruses should be neutralized by the immune system before they can cause infections and inflammations. Existing infections etc. will last considerably shorter if the immune system is functioning at its peak level. For additional background visit our 'resources' page and our frequently asked questions page.

ORIVeDA's PSP-50 contains over 46% beta-glucan

• Effects on Hepatitis C and Chronic Fatigue Syndrome

In particular in SE-Asia, where Hepatitis is much more common and many people are carrier of the disease, extracts from this mushroom are used to control Hepatitis and related liver diseases.

The results are appearantly good. The immune-modulating potential probably plays an important role here, but research also points towards a direct liver-protecting effect. This is one of the reasons this supplement is used often to support standard treatments which involve powerful pharmaceuticals with potential liver-damaging side effects, such as chemo-therapy.

• Side effects and safety

Turkey Tail extracts have no noteworthy side effects. The lack of side effects is due to the fact that mushroom extracts work mainly in an indirect way: as a natural BRM (a Biological Response Modifier - stimulating the body's natural defense mechanisms).

There is no potential disturbance of the body's chemical and hormonal balance. This makes medicinal mushrooms extracts ideal dietary supplements for everybody.

The only contra-indications are immune-suppressing medicines (e.g. after a transplant). Never use medicinal mushroom extracts together with this type of medication - the immune modulating potential might neutralize its workings.

There are also reports that PSP extracts might increase the risk of hypoglycemia (blood sugar levels that fall too low) in people that are sensitive to that, such as those taking diabetes medicines like insulin. Taking it together with some sugar-containing beverage such as fresh juice will help.


Keywords: Coriolus Versicolor, Trametes Versicolor, Kawaratake, Yun Zhi, Turkey Tail, PSP, PSK.

* The statements on this page have not been evaluated by the FDA or the EFSA.
This product is not intended to treat, cure or prevent any disease.
Do not use this product instead of regular medication.
  • 180 v-caps @ 350 mg 
  • (2 months regular use)
  •  
  • > 20 % polypeptides
  • > 40 % beta-glucan
  • > 1.8 % polyphenols
  •  
  • • hot water extract •

Produced in compliance with the following quality standards :
  • ISO 9001:2008
  • ISO 22000:2005
  • HACCP
  • cGMP
  •  
  • and also
  •  
  • Halal
  • Koosjer
  • USDA organic (EcoCert)

Immunological effects of 39 mushroom supplements compared. [source]