Wild lion's mane mushroom fruiting on a fallen hardwood log in a sunlit Texas forest

San Antonio, Texas

Lion's mane, grown and extracted by hand

Fruiting-body dual extracts in small Texas batches — and guided ecology walks for people who'd rather meet the mushroom in the woods.

Why our batches are different

  • Third-party lab tested

    Active-compound potency (hericenones) verified by an independent lab — COA available.

  • Small-batch, fruiting body

    Dual-extracted from mushroom fruiting bodies. No grain filler, ever.

  • Made in Texas

    Grown, extracted, and bottled by hand in San Antonio.

Sam the Fungi holding a foraged wild mushroom in a Central Texas meadow

The brand story

A decade of Texas logs, one bottle at a time

Sam started identifying fungi along San Antonio's creek bottoms long before there was a product. The company came later, out of frustration with labels that hid behind pretty drawings.

Today every lot is grown on hardwood, dual extracted, and lab tested before it earns a label — and the walks are still the part Sam looks forward to most.

Read Sam's story

Two products

Pick your format

Same mushroom, same dual extraction, same lab reports. Shipping is billed separately.

Not sure which to choose? Read the buyer's guide

Sam the Fungi holding a freshly harvested lion's mane mushroom

Small batch, made by hand

One lot at a time, start to bottle

Every block is inoculated, tended, and harvested by Sam in a small Texas grow room — no contract manufacturer, no anonymous bulk powder.

Fruiting bodies are dried low and slow, dual extracted in-house, and lab tested before a single bottle gets a label.

Sam the Fungi in the small-batch mushroom grow room

Featured with

The Central Texas Mycological Society

Sam leads field walks and identification sessions in collaboration with CTMS, and observations from every Geeky Gallop are shared back into regional records.

See upcoming walks

Stay in the loop

New lots and walk dates, first

Batches are small and walk dates follow the rain. Join the list and you'll hear before either sells out.

Follow @samthefungi

Field finds, fruiting reports, and walk announcements — posted as they happen.

Common questions

Where is Sam the Fungi based?
San Antonio, Texas. Our extracts are made here in small batches and our guided walks take place on trails around Bexar County and the near Hill Country.
Are your supplements lab tested?
Yes. Lots are third-party tested for active-compound potency (hericenones) by an independent lab, and the certificate of analysis is available from the product page.
What is a Geeky Gallop?
A guided ecology walk led by Sam, offered as a small group walk or a private one-on-one outing, ticketed and paid in full at booking.

Disclaimer: These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.