The key specification of michelia leaf oil is Linalool content ≥70% as a hard gate (below is excluded before price comparison), with perfumery grades requiring (R)-Linalool ee ≥90%, methyl eugenol below IFRA limits, and batch consistency verified by batch-matched third-party GC-MS reports with Linalool variation ≤±2%.

The key specification of michelia leaf oil is Linalool content ≥70% as a hard gate (below is excluded before price comparison), with perfumery grades requiring (R)-Linalool ee ≥90%, methyl eugenol below IFRA limits, and batch consistency verified by batch-matched third-party GC-MS reports with Linalool variation ≤±2%.

The key specification of michelia leaf oil is Linalool content ≥70% as a hard gate (below is excluded before price comparison), with perfumery grades requiring (R)-Linalool ee ≥90%, methyl eugenol below IFRA limits, and batch consistency verified by batch-matched third-party GC-MS reports with Linalool variation ≤±2%.

The core specification of blue gum eucalyptus oil is 1,8-cineole content of 70–85% (FCC grade ≥70%, USP grade ≥85%). A supplier passes acceptance only when the batch stays stable in the mid-range of 75–82% with batch-to-batch deviation ≤1.5 percentage points, verified through batch-matched third-party GC-MS and a COA with 15+ test items.

The core specification of blue gum eucalyptus oil is 1,8-cineole content of 70–85% (FCC grade ≥70%, USP grade ≥85%). A supplier passes acceptance only when the batch stays stable in the mid-range of 75–82% with batch-to-batch deviation ≤1.5 percentage points, verified through batch-matched third-party GC-MS and a COA with 15+ test items.

The core specification of blue gum eucalyptus oil is 1,8-cineole content of 70–85% (FCC grade ≥70%, USP grade ≥85%). A supplier passes acceptance only when the batch stays stable in the mid-range of 75–82% with batch-to-batch deviation ≤1.5 percentage points, verified through batch-matched third-party GC-MS and a COA with 15+ test items.