Your cart is empty Not sure what to choose?
Check promotions

Slavic Labs Reishi 20:1 – Premium Mushroom Extract Powder

£26.52Tax includedLowest price in 30 days: £26.52

Purchase this product now and earn 27 Points!

In stock

Orders placed before 3.30 pm are shipped on the same day

Free shipping: UK over £89, EU over £150
Secure Card Payments
visa master gpay apay
Pay later with Klarna
14-Day Returns

Slavic Labs Reishi 20:1 is a concentrated extract from the fruiting bodies of Ganoderma lucidum, one of the most respected mushrooms in traditional Eastern practices. Revered for centuries, Reishi (also known as the “mushroom of immortality”) is recognised for its calming properties, adaptogenic activity, and long-term wellness benefits.


This 20:1 extract means you’re getting the power of 20 grams of raw mushroom in every 1 gram of powder — highly potent and standardised for consistent use. Sourced from the fruiting body only, this formula contains no fillers or mycelium, delivering premium quality with traceable potency.


Who is it for?


This Reishi extract is an excellent choice for:




  • Individuals seeking natural stress management and mood balance




  • Athletes and professionals looking to support recovery and rest




  • People incorporating adaptogens into their wellness stack




  • Anyone looking for immune system support and long-term resilience




Our opinion


Slavic Labs continues to deliver no-nonsense, high-quality extracts, and this Reishi is no exception. Clean, potent, and calming, it’s ideal as part of a wind-down routine or combined with other adaptogens for a comprehensive approach to stress and balance—a brilliant, reliable addition to any recovery or nootropic stack.

Ingredients (Per Daily Serving)




  • Reishi Mushroom Fruit Body Extract (Ganoderma lucidum, DER 20:1) – 1000 mg


    A potent extract that supports the body’s natural ability to adapt to stress. Reishi is valued for its ability to promote balance in both the nervous and immune systems. Ideal for those seeking a natural addition to their recovery, stress management, or general wellness routine.


  • Vitamin B6 – 0.7 mg (50% NRV)


    Included for its role in neurotransmitter production and nervous system support. B6 helps maintain hormonal balance and supports brain and immune function.


Dosage – Timing – Follow-Up


Take 1000 mg (approximately one scoop) daily, mixed with water, tea, or your favourite beverage.Best taken in the evening or during periods of stress.Pairs well with Lion’s Mane, Rhodiola, or Ashwagandha for full adaptogenic support.

Disclaimer


Do not exceed the recommended daily serving.

No product reviews yet — add the first one!

Only logged in customers who have purchased this product may leave a review.

Need help?

Slavic Labs Reishi 20:1 is a premium mushroom extract powder made from the fruiting bodies of Ganoderma lucidum, one of the most respected mushrooms in traditional Eastern practices.

It is a 20:1 extract, meaning every 1 gram of powder delivers the equivalent of 20 grams of raw mushroom, standardised for consistent use.

Yes. It is a single mushroom extract with no stimulants, so it can be taken at any time of day and stacked with other supplements.

Slavic Labs Reishi is sourced from the fruiting body only. It contains no fillers and no mycelium, delivering premium quality with traceable potency.

Fruiting body extracts carry the concentrated bioactive compounds of the mushroom itself, whereas mycelium-based products often include the growing substrate, which dilutes potency.

Reishi has been revered for centuries in traditional Eastern practices and remains one of the most widely used mushrooms in wellbeing and longevity supplement routines.

It is supplied as an extract powder, which makes it easy to measure and mix into drinks or stack with other powders.

It suits individuals seeking a natural, high-potency single-mushroom extract with a clearly stated extraction ratio rather than an undosed mushroom blend.

Follow the serving directions on the Slavic Labs label, measuring the powder according to the stated serving size.

You can buy Slavic Labs Reishi 20:1 in the UK directly from Cross The Limits.

Slavic Labs

Slavic Labs

Slavic Labs is a sports nutrition brand known for its natural, high-performance supplements designed for serious athletes.