Inquiry about Dipropylene glycol, Flora Fix, and Last Fix for Fragrance Formulation

Subject: Regarding the use of Dipropylene glycol

Hello,

Thank you for your inquiry about using Dipropylene glycol compared to Butylene Glycol and Flora Fix in body spray perfumes.

Based on the information provided:

• Function: Dipropylene glycol and Butylene Glycol are primarily used as solvents in cosmetic formulations. They can help dissolve solid ingredients. While they can offer some minor fixative benefits by reducing the evaporation rate of fragrance components, they are not classified as dedicated fragrance fixatives. Dipropylene glycol is often preferred in perfumes among glycols due to its ability to protect fragrance components from moisture. Flora Fix and Last Fix, on the other hand, are specifically designed as fragrance fixatives to extend the scent duration.
• Scent: All three products you mentioned (Dipropylene glycol, Flora Fix, and Last Fix) have a slight inherent scent of their own.
• Mixing Order: Dipropylene glycol and Flora Fix can generally be mixed with either the perfume concentrate or the alcohol base. Last Fix has specific usage instructions that should be carefully followed from the product page for optimal results.
• Scent Fixing Ability: When comparing Dipropylene glycol, Flora Fix, and Last Fix in terms of their ability to fix scent (reduce evaporation), they can be generally ranked from least effective to most effective: Dipropylene glycol < Flora Fix < Last Fix. Last Fix typically has more complex usage steps and is usually considered when other options are insufficient.

Regarding your specific needs:

• If your primary goal is to significantly extend the fragrance duration and you can tolerate a slight inherent scent from the fixative, Flora Fix or Last Fix would be more effective choices than Dipropylene glycol.
• If you also want to reduce irritation from alcohol, Dipropylene glycol offers this benefit due to its properties, although its scent-fixing capability is less pronounced compared to dedicated fixatives.

Achieving both strong scent extension without any added scent and significant irritation reduction from alcohol with a single ingredient might be challenging, as dedicated fixatives have slight scents, and glycols, while reducing irritation, are weaker fixatives. You may need to prioritize your needs or consider the specific properties of each ingredient based on the staff's advice.

We hope this clarifies the differences and helps you choose the most suitable ingredient for your perfume formulation.

Thank you.