Not medical advice. Sylva indexes traditional, fringe, and emerging remedies — including ideas mainstream medicine has rejected. Talk to a clinician before changing any treatment.

The library

28 remedies, honestly labeled.

Every entry is tagged by tier of evidence — from controlled trials to folk tradition. Filter by ailment or search by name.

Clinical evidence

Curcumin

Indian Ayurveda

The yellow polyphenol of turmeric. Hundreds of trials show anti-inflammatory effects rivaling NSAIDs for osteoarthritis, with emerging anticancer signal.

InflammationArthritisCancerDepression
Clinical evidence

Psilocybin

Indigenous ceremonial use, Mesoamerica

Phase II/III trials at Johns Hopkins, NYU, and Imperial College show single-dose psilocybin produces rapid and durable remission of treatment-resistant depression and end-of-life anxiety.

DepressionAnxietyCancer
Clinical evidence

Saffron

Persian traditional medicine

Multiple double-blind RCTs show 30 mg/day of saffron extract matches the antidepressant effect of fluoxetine and imipramine for mild-to-moderate depression.

DepressionAnxiety
Preliminary research

Lion's Mane Mushroom

East Asian traditional medicine

Contains hericenones and erinacines that cross the blood-brain barrier and stimulate nerve growth factor (NGF). Small trials show cognitive improvement in mild dementia.

Cognitive declineDepression
Preliminary research

Methylene Blue

First synthetic drug, 1876

An old industrial dye repurposed as a mitochondrial enhancer. Low doses are being studied for Alzheimer's, frontotemporal dementia, and treatment-resistant depression.

Cognitive declineDepression
Preliminary research

Low-Dose Naltrexone (LDN)

Bernard Bihari, NYC, 1980s

An opioid antagonist at 1/10th the addiction-treatment dose. Off-label use spans Crohn's, MS, fibromyalgia, and adjuvant cancer care.

CancerInflammationDepression
Clinical evidence

High-Dose Vitamin D3 + K2

Sunlight; modern megadosing — Cicero Coimbra, Brazil

Maintaining serum 25(OH)D above 50 ng/ml is associated with 25–40% lower cancer incidence. The Coimbra protocol uses much higher doses for autoimmune disease.

CancerInflammationDepressionHeart disease