Body Spray Perfume Dilution and Mixing Ratios

Question

Question about body spray perfume

Is the perfume available to choose and buy in the Brand window a perfume that can be used directly, or does it need to be mixed with things like Last Fix and Ethyl Alcohol as well? If it needs to be mixed, what should the ratio be? Thank you.

Answer 1

Perfume Formulation: Diluting Fragrance Oils

The fragrances available are typically concentrated fragrance oils. They are not meant to be used directly on the skin as they are too concentrated and can cause irritation. To create a wearable perfume, you need to dilute the fragrance oil with a suitable solvent, most commonly Ethyl Alcohol.

Mixing Ratio

A common ratio for Eau de Parfum is around 15-20% fragrance oil and 80-85% Ethyl Alcohol. For Eau de Toilette, the fragrance oil concentration is lower, typically 5-15%. You can adjust the ratio based on your desired scent strength.

Eau de Parfum: 15-20% Fragrance Oil + 80-85% Ethyl Alcohol
Eau de Toilette: 5-15% Fragrance Oil + 85-95% Ethyl Alcohol

Using a Fixative (like Last Fix)

A fixative, such as the product you referred to as "Last Fix", is an optional ingredient that can help the fragrance last longer on the skin. If you choose to use a fixative, you would typically add a small percentage (e.g., 1-5%) to the mixture of fragrance oil and alcohol. The exact amount can depend on the specific fixative and your desired result.

Recommended Ingredients

To make perfume, you will need:

Concentrated fragrance oil (choose your desired scent)
Ethyl Alcohol (Perfumer's Grade is recommended for a neutral scent base, such as Ethyl Alcohol 96% or Ethyl Alcohol 99.9%)
(Optional) A suitable fixative for your fragrance

Always mix the fragrance oil and fixative first, then gradually add the Ethyl Alcohol while stirring gently.

Answer 2

As of May 17, 2026, perfume formulation has become more streamlined with the introduction of specialized bases and high-performance fixatives.

Ready-to-Use Bases: For a simpler process, you can now use a pre-blended base like 8 Hours Fragrance Spray Base (Musk-Free). This base already contains the necessary solvents and fixatives to extend scent longevity by up to 50% without altering the original fragrance profile. You typically mix 10-40% fragrance oil with 60-90% of this base.
Advanced Fixatives: While liquid fixatives like Flora Fix™ remain popular for their ease of use (mixing directly at 1-2%), high-performance options like 12H Fix™ are now available for maximum longevity. Note that 12H Fix™ is a powder that requires heating to 60-70°C with a carrier like LipidSoft™ Lite before being incorporated into the fragrance oil.
Alcohol Grades: Ethyl Alcohol (99.9% Perfumer Grade) and Ethyl Alcohol (96% Low-Odor) continue to be the standard solvents. The 99.9% grade is preferred for high-end formulations due to its extreme purity and neutral scent.