FAQ Header

Is the hydrosol tested for heavy metals and pesticide residues?

Yes — heavy metals and pesticide residues are tested on a regular basis and reported, supporting compliance with cosmetic and food-grade reference limits.

Test GroupTypical Reference Limits
Lead (Pb)≤ 10 mg/kg (cosmetic reference)
Arsenic (As)≤ 2 mg/kg
Mercury (Hg)≤ 1 mg/kg
Cadmium (Cd)≤ 5 mg/kg
Pesticide residuesPer applicable standard (e.g., GB 2763 / EU MRLs where required)
Results are summarized on the COA, and full third-party test reports can be arranged on request. Because the flowers are distilled with pure steam, residues concentrate almost entirely in the still residues — the hydrosol itself is typically very clean.

Send the limit values of your target market and we will run the corresponding test method and include it in the COA.

ผลิตภัณฑ์ที่เกี่ยวข้อง

บทความนี้เผยแพร่เมื่อ 2026-09-07 และอัปเดตล่าสุดเมื่อ 2026-09-07 โดยจะมีการปรับปรุงเนื้อหาอย่างต่อเนื่อง

Logo

Guilin Four Seasons Sunshine

Founded in 2006, Guilin Four Seasons Sunshine F&F Co., Ltd. is a natural plant extract manufacturer and OEM/ODM partner in Guilin, China, combining proprietary Living-Fragrance physical extraction with supercritical fluid extraction to deliver pure, traceable botanical ingredients to global food, flavor, fragrance and personal care brands.