Terranova is all about clean, whole-food supplements that are fermented and freeze-dried to improve absorption, so you get more benefit from smaller doses without any fillers or additives.

If you want a straightforward, high-dose reishi supplement without added extras, this is it. Terranova Reishi is a single-ingredient formula giving 500mg of fresh freeze-dried organic Ganoderma lucidum per capsule.

No filler blends, no unnecessary additions, just the whole mushroom preserved at peak potency using Terranova's PhytoFRESH technology.

At this price point, it is one of the most honest-value reishi products on the Irish market.

Fresh Freeze Dried vs Standard Reishi

Most reishi capsules contain a mushroom that has been heat-dried and ground into powder. Heat damages many of the delicate compounds, particularly the enzymes and volatile triterpenes, that make reishi valuable in the first place.

Terranova's PhytoFRESH process works differently. The mushroom is flash-frozen immediately after harvest, then freeze-dried under vacuum. This removes the water without ever applying heat, preserving the full spectrum of active compounds exactly as they existed in the living mushroom. It is the closest thing to taking a freshly picked reishi capsule.

How Reishi Works

The ingredients work through a few of the relaxation pathways in the body: 

Ganoderic acids (triterpenes from this species) affect the GABAergic system, the same neurotransmitter system used by many sleep and anxiety medications. Ganoderic acids can increase the calming GABA signals in the brain, which slows down nerve activity, helping you feel more relaxed, less anxious and more ready to sleep.

Beta-glucans bind to receptors on immune cells like macrophages and natural killer cells, which activate them and improve how they respond to threats. This helps your body deal with infections more effectively while you rest.

Reishi for Stress & Immunity

The 500mg dose per capsule is generous for a single-ingredient reishi product. At 2 capsules daily, you reach 1,000mg, which is within the range used in clinical trials that showed improvements in sleep, stress resilience, and immune cell counts.

·       Helps maintain healthy immune function year round

·       Promotes calm and stress resilience without drowsiness

·       May improve sleep quality when taken consistently

·       A clean, simple formula with nothing unnecessary

Who are Reishi Caps for

Anyone who wants reishi in its purest, most concentrated form. It suits people who prefer single-ingredient supplements so they can build their own stack, as well as those who are already taking other mushroom or herbal products and want to add reishi without doubling up on extras. Vegan, gluten free, and free from all fillers, binders, and additives.

Signs Reishi Would Work for You

·       Frequent colds or slow recovery from illness

·       Difficulty unwinding after a busy day

·       Poor sleep quality despite spending enough time in bed

·       Feeling run down or stressed for extended periods

Research on Reishi Mushrooms

·       A randomised trial showed that daily reishi at 1,500mg improved sleep quality and reduced anxiety symptoms over several weeks.

·       Studies confirm that Ganoderma lucidum beta-glucans increase CD3+, CD4+, and CD8+ T cell counts in peripheral blood, indicating a measurable effect on immune function.

·       A double-blind trial measured a cortisol reduction of approximately 5% over 12 weeks in participants taking reishi versus placebo.