Materia Medica

Rhodiola (Rhodiola rosea) — Roseroot, Golden Root, Arctic Root
Rhodiola / roseroot (Rhodiola rosea) is a cold-climate root herb traditionally associated with fatigue, endurance and resilience. This full guide covers traditional tea and extracts, rosavins and salidroside, stress and fatigue research, mood and exercise evidence, product authenticity, medication cautions, cultivation, CITES trade controls and sustainable sourcing. Read more...
Rooibos (Aspalathus linearis) — Red Bush, South African Red Tea
Rooibos / red bush (Aspalathus linearis) is South Africa’s naturally caffeine-free herbal tea. This full guide covers Khoi and San traditional knowledge, practical brewing, red versus green rooibos, aspalathin and other flavonoids, human research, rare safety concerns, cultivation, sustainability and ethical sourcing. Read more...