DPG - dipropylene glycol

Dipropylene Glycol (DPG) is a widely used ingredient in perfumery and fragrance manufacturing, primarily serving as a neutral solvent and diluent for aromatic materials. It is valued for its very low odour profile, allowing fragrance ingredients to be diluted or dissolved without altering the intended scent character of a composition.

The material typically appears as a clear, colorless, and moderately viscous liquid, and is appreciated for its excellent solvency and compatibility with a wide range of fragrance ingredients. Its relatively low volatility and stable nature make it particularly suitable for preparing fragrance bases and diluted aromatic materials.

In practical fragrance work, DPG is commonly used to dilute concentrated aroma chemicals, essential oils, and fragrance blends, helping to control strength, improve handling, and facilitate accurate formulation. It is widely employed in fine fragrance preparation, incense oils, reed diffuser bases, and various personal care products, where a stable, neutral carrier is required to support the performance of aromatic materials.