12-month free technical support, updated dossiers, batch matching, supply continuity contracts and a dedicated account manager.

Food 10–100 ppm; perfume concentrate 0.5–5%; cosmetics 0.5–2% (facial ≤0.5%); candles 1–3%; soap 0.5–1.5%; massage 1–2%; always patch test — sanshool is potent.

Tightly sealed, light-protected, 15–25°C, dry; 36-month shelf life; use opened containers within 6–12 months; peroxide value is the quality sentinel.

36 months unopened at 15–25°C sealed & dark; 6–12 months after opening; peroxide value the sentinel; nitrogen-blanketed drums; annual re-test available.

Freely soluble in ethanol and fixed oils; insoluble in water (use polysorbate 1:1–1:3 for aqueous systems); soluble in PG/DPG and IPM for candles and cosmetics.

Express 3–7 days, air 5–10 days, sea LCL/FCL 15–35 days, rail to EU 18–25 days; 3 ml–180 kg pack range, UN-tested packaging, all-risk insurance available.