Ganoderma lucidum
Reishi
The calm mushroom
Reishi (Ganoderma lucidum) is an adaptogenic mushroom traditionally used to calm the nervous system and support restorative sleep. Research points to its triterpenes and beta-glucans as the likely drivers of its effects on stress response, cortisol regulation, and immune balance.
Key facts
- Rich in triterpenes and beta-glucans — linked to stress and immune modulation.
- Commonly taken in the evening to support wind-down and sleep quality.
- Associated with HPA-axis and cortisol research.
- Effects build over weeks of consistent use — not an acute sedative.
- Historically known as the 'mushroom of immortality' in traditional East Asian medicine.
Active compounds
The bioactive compounds researchers associate with Reishi:
Frequently asked questions
Does Reishi help you sleep?
Reishi does not act as a sedative, but it is studied for its effects on the nervous system and stress response. Many people find it supports more restorative sleep when taken consistently in the evening over several weeks.
Is Reishi good for anxiety?
Reishi is classified as an adaptogen and is traditionally used to support a calmer baseline. Its triterpenes and polysaccharides have been studied in the context of stress and cortisol regulation, though clinical evidence for anxiety specifically is still emerging.
How is Reishi different from Ashwagandha?
Both are adaptogens, but they work through different pathways. Ashwagandha is an herb studied primarily for cortisol reduction, while Reishi is a mushroom whose effects are tied to triterpenes and immune-modulating beta-glucans. Many people use them together.
When should I take Reishi?
Reishi is typically taken in the evening, about an hour before bed, to support wind-down. It can also be taken daily at any time — consistency matters more than timing.