GC-MS fingerprint release, HPLC sanshool standardization (target ±5%), fixed Dao-di sourcing with orchard-lot blending, ±10–15% monoterpene tolerance, 36-month retained samples.

TCM: warm center, dispel cold, relieve pain; aromatherapy warming massage 1–2% with ginger/cinnamon, pain blends with black pepper/eucalyptus; diffuse for comfort; not for pregnancy.

Intense citrusy-camphoraceous-peppery with mouth-numbing sanshool signature: lemon-lime top, zesty citrus-pepper heart with tingling warmth, warm spicy-woody drydown; the strongest synesthetic numbing-heating herb oil.