Hercolyn D (Hydrogenated Rosin)

Hercolyn® D is a hydrogenated rosin derivative widely used in perfumery as a fixative, solvent, and fragrance stabilizer. Derived from pine rosin, it is valued for its very low odour profile, though it may present a faint balsamic and resinous nuance reflecting its natural origin.

The material typically appears as a clear, viscous liquid ranging from pale to nearly colorless, and is appreciated for its excellent stability and resistance to oxidation due to the hydrogenation process. Its low volatility and neutral olfactory character allow it to function effectively as a technical ingredient that improves fixation and enhances the longevity of fragrance compositions.

In practical perfumery, Hercolyn® D is frequently used to dissolve and stabilize resins, essential oils, and heavier aromatic materials, while also helping to smooth the structure of a fragrance and extend its lasting character. It is commonly employed in fine fragrances, personal care products, and air care formulations, where a reliable fixative and neutral solvent is required to support the performance of aromatic materials.