Understanding Purity Standards in Patchouli Oil: Why “Ultra IF” Exists
In the global essential oil industry, Patchouli Oil (Pogostemon cablin) is a cornerstone ingredient. However, formulators often face a choice between two distinct technical grades: Iron Free (IF) and Ultra Iron Free (Ultra IF). While the visual difference is striking, these classifications exist to meet specific technical requirements in modern fragrance and cosmetic formulation. The […]