Reishi is one of the most studied mushrooms in traditional and modern herbalism, with a particular focus on its effects on sleep quality, stress response, and immune function. Four Sigmatic Reishi Elixir delivers 1,000mg of dual-extracted, log-grown red Reishi per sachet in a warm, naturally sweetened drink - a simple evening ritual that takes 30 seconds to prepare.

Each box contains 20 single-serve powder sachets. Order before 4pm for same-day dispatch from Dublin.

Why Reishi for sleep and recovery?

Reishi (Ganoderma lucidum) contains two primary active compound groups - polysaccharides and triterpenes. The triterpenes in particular have been studied for their effects on the nervous system and stress hormone regulation. Research published in Pharmacology Biochemistry and Behavior found that Reishi triterpenes influenced sleep architecture in animal models, increasing time spent in slow-wave sleep. A separate review in International Journal of Medicinal Mushrooms documented Reishi's immunomodulatory and adaptogenic properties, supporting its traditional use as a recovery and resilience herb.

By supporting cortisol regulation and endocrine balance, Reishi creates the hormonal conditions your body needs to enter deep, restorative sleep - the kind that actually leaves you recovered the next morning.

What's in each sachet?

Red Reishi Extract (1,000mg) - dual extracted, log-grown

Four Sigmatic uses red Reishi mushrooms grown on real linden logs cut from wild forest - the traditional cultivation method that provides the nutrient profile required for a genuinely potent mushroom. Each sachet contains a minimum of 30% polysaccharides and 2% triterpenes, with no starch, sugars, or fillers. The dual extraction process (water and alcohol) ensures both the water-soluble polysaccharides and the fat-soluble triterpenes are fully bioavailable - something a single-extraction product can't guarantee.

Licorice Root Extract (175mg)

Licorice root is one of the most widely used herbs in Chinese medicine, valued for its ability to harmonise and extend the effects of other herbs in a formula. It also rounds out the natural bitterness of reishi. Each sachet contains less than 0.7mg of glycyrrhizin acid - well within safe daily intake guidelines.

Star Anise

A traditional spice with antibacterial and antifungal properties, star anise complements both the flavour profile and the functional character of this formula.

Field Mint

Mint leaf adds a clean, calming flavour and has a mild soothing effect on the digestive system - useful for an evening drink.

Stevia Leaf Extract

A small amount of high-quality stevia provides calorie-free sweetness without the metallic aftertaste common in lower-grade stevia products. Less than 1% of the total formula.

How to prepare

Empty one sachet into a mug and add approximately 240ml (8fl oz) of hot water. Stir and drink. Best taken 30-60 minutes before bed as part of an evening wind-down routine.

5 calories per serving. Gluten free. Vegan.

How this differs from Four Sigmatic Reishi 60ml Liquid

If you prefer a concentrated liquid extract, the Four Sigmatic Reishi 60ml Liquid delivers the same mushroom in a few drops rather than a warm drink. The elixir sachets suit people who want a calming evening ritual; the liquid suits those who prefer a fast, unflavoured extract to add to other drinks.

Four Sigmatic is a Finnish wellness brand that pioneered functional mushroom drinks. powerful.ie is the Irish stockist, shipping from Dublin.