Cart

Your cart is empty

Explore our collection and add something you love.

About Fungtion

機能について

Fungtion began with a single conviction: that fungtional mushrooms deserve better than what the supplement industry has given them. Better sourcing. Better extraction. Better design. Better honesty about what is inside the bottle and what the science actually says.

The founder spent years studying mycology — not as an academic exercise, but as a personal obsession that grew from a chance encounter with traditional Japanese medicine during time spent in Kyoto. There, in a culture that treats ingredients with meticulous respect, the gap between what mushrooms could offer and what the Western supplement market actually delivered became impossible to ignore. Most products used mycelium-on-grain fillers. Most skipped dual extraction entirely. Most hid behind proprietary blends that made independent verification impossible.

Fungtion was built to close that gap. Every formulation uses 100% fruiting body, dual-extracted with both hot water and ethanol to capture the full spectrum of bioactive compounds — beta-glucans, triterpenes, hericenones, cordycepin. Every dosage is therapeutic, not decorative. Every ingredient and its quantity is published openly. The Japanese design philosophy that shapes our visual identity reflects a deeper commitment: precision, restraint, and the belief that true quality needs no embellishment.

Our Philosophy

哲学
透明性

Transparency

Every ingredient, every dosage, every extraction ratio — published openly. We believe the supplement industry owes its customers honesty, not proprietary blends that obscure what you are actually consuming.

伝統

Tradition

Our formulations are informed by centuries of Eastern medicinal practice. We do not innovate for the sake of novelty. We build upon knowledge systems that have been tested across generations and continents.

精密

Precision

Therapeutic dosing, 10:1 extraction ratios, third-party testing for every batch. Precision is not a marketing claim — it is the foundation of a product that delivers measurable results.

純粋

Purity

100% fruiting body. No mycelium-on-grain fillers, no starch, no artificial anything. Every gram of Fungtion extract represents ten grams of raw mushroom — nothing more, nothing less.

Sourcing & Dual Extraction

Our mushrooms are sourced from organic cultivation facilities that specialise in medicinal fungi — no wild-harvesting that depletes ecosystems, no mycelium grown on grain substrates. Each species is cultivated on its natural substrate to ensure the full complement of bioactive compounds develops.

The dual-extraction process is non-negotiable. Hot water extraction at 80–100°C dissolves the polysaccharides and beta-glucans. Ethanol extraction captures the triterpenes, hericenones, and other lipophilic compounds that water cannot reach. The result is a full-spectrum extract with a 10:1 concentration ratio — one gram of extract represents ten grams of raw fruiting body. Every batch is third-party tested for potency, purity, and the absence of heavy metals, pesticides, and microbial contaminants.

Ancient intelligence. Modern function. Six species, one ritual.

Explore the CollectionRead the Science