Herbs & Botanicals

Thunder God Vine (Tripterygium wilfordii): Rheumatoid Arthritis Research, Toxicity, Fertility & Safety
Thunder god vine, or Lei Gong Teng, has genuine clinical research in rheumatoid arthritis and kidney disease, but it also has one of the narrowest safety margins among commonly discussed medicinal herbs. This guide reviews efficacy evidence alongside reproductive toxicity, liver and kidney injury, lowered blood-cell counts, pregnancy risk, poisonous plant parts and product-quality concerns. Read more...
Tansy (Tanacetum vulgare): Traditional Use, Thujone Toxicity, Identification & Safety
Common tansy is a historic European herb with old culinary, antiparasitic and household uses, but modern internal use is limited by unpredictable essential-oil chemotypes and thujone neurotoxicity. This guide separates true Tanacetum vulgare from tansy ragwort and feverfew, explains U.S. food restrictions, and reviews identification and safety. Read more...
Pennyroyal (Mentha pulegium): Traditional Use, Pulegone Toxicity, Pregnancy Danger & Safety
A safety-first guide to pennyroyal (Mentha pulegium), covering traditional use, pulegone and menthofuran toxicology, severe essential-oil poisoning, pregnancy danger, liver injury and emergency safety considerations. Read more...