Using Glycols in Reed Diffusers

Regarding your questions about using Propylene Glycol (PG) and Dipropylene Glycol (DPG) in reed diffusers:

1. Reducing Evaporation: Yes, both Propylene Glycol and Dipropylene Glycol can help reduce the evaporation rate of the fragrance in a reed diffuser. They are less volatile than typical solvents like alcohol, which helps the scent last longer.

2. Popularity and Safety: Both PG and DPG are commonly used and generally considered safe for this application. However, Dipropylene Glycol (DPG) is often preferred in fragrance applications like reed diffusers because it has a very low odor profile, meaning it is less likely to interfere with the scent of your chosen fragrance compared to Propylene Glycol, which can sometimes have a slight smell. Many fragrance compounds are diluted in DPG, such as Amyl Acetate (1% in DPG), Methyl Octine Carbonate (1% in DPG), and Jasmine Sambac Absolute (1% in Dipropylene glycol).

3. Other Recommendations: Yes, there are other bases specifically designed for reed diffusers. We recommend considering a dedicated reed diffuser base like Reed Diffuser Base (Type 1). This type of base is formulated to effectively dissolve fragrances and facilitate their diffusion through the reeds without issues like separation or residue. Notably, Reed Diffuser Base (Type 1) does not contain Propylene Glycol, Dipropylene Glycol, or alcohol, offering a different option for your formulation. It is typically used at a ratio of 70-75% base to 25-30% fragrance.

When choosing a base, consider the type of fragrance you are using and the desired diffusion rate.