Plai (ไพล)
Zingiber cassumunar
A Thai ginger species applied topically for generations to relieve muscle discomfort, now standardized into stability-tested gel formulations.
Lab results
- Marker compound: terpinen-4-ol
- Assay: GC-FID, 20% w/w in finished gel
- Appearance: pale yellow translucent gel
- Stability: 12 months accelerated (40°C / 75% RH)