Perfume Formulation: Fragrance Oil and Alcohol Concentration
Question
If I use fragrance oil from your store to mix 100ml of perfume, what percentage of fragrance oil and alcohol should I use to achieve the best scent and longevity?
Answer
Subject: Re: Inquiry about using fragrance oil
Hello,
Thank you for your question regarding mixing perfume using fragrance oil (Product ID 319) and alcohol (Product ID 706) from our store.
To achieve the best scent strength and longevity for a 100ml perfume, the concentration of fragrance oil is key. Perfumes are typically categorized by their fragrance oil concentration:
- Eau de Cologne (EDC): 2-4% fragrance oil
- Eau de Toilette (EDT): 5-15% fragrance oil
- Eau de Parfum (EDP): 15-20% fragrance oil
- Perfume (Extrait): 20-40% fragrance oil
For a strong and long-lasting scent, we recommend aiming for an Eau de Parfum (EDP) or Perfume (Extrait) concentration. A good starting range would be 15% to 30% fragrance oil.
For a 100ml total volume:
- Use 15ml to 30ml of fragrance oil (Product ID 319).
- Use 70ml to 85ml of alcohol (Product ID 706).
The remaining percentage is typically the alcohol base. You can adjust the percentage within this range based on your personal preference for scent intensity. Higher percentages will result in a stronger, longer-lasting fragrance.
We hope this helps you create your perfect perfume!
Updated Review: May 2026
This section was added after reviewing the original answer against current product availability and formulation knowledge at the stated point in time.
Update as of 2026-05-24: The original 15–30% fragrance concentrate range can still be used as a starting framework, but for a 100 ml alcohol perfume a more practical first trial is 15–20% fragrance concentrate with perfumer alcohol adjusted to a final total of 100 ml. For example, 15% means about 15 ml fragrance concentrate, then add alcohol/base to make 100 ml total.
If a stronger perfume is desired, 20–30% fragrance concentrate may be tested, but only after checking the allowed use level for that exact fragrance oil and confirming the finished perfume remains clear and stable, with no haze, oil separation, sediment, or cloudiness. A higher fragrance percentage usually makes the scent stronger, but it does not automatically make it longer-lasting; longevity depends on the fragrance structure, top/middle/base-note balance, long-lasting aroma materials or fixatives, solubility in alcohol, and formula stability.
Low-odor perfumer alcohol such as Ethyl Alcohol 99.9% 200 Proof, Research/Perfumer Grade can be used as the alcohol base. Handle and store alcohol carefully because it is flammable.
