Seamus Hammond
Perfumes are made of more than just fragrance. After the fragrance formula has been devised, raw materials are added to a carrier or base material, which carries the scent. Diluting the oils in a carrier can reduce issues like skin irritation and rashes. The carrier also influences how long a perfume lasts and how far its scent reaches. Common carriers include alcohol and oil. Alcohol helps the scent radiate outward, but it dries out the skin. Oil, on the other hand, moisturises the skin and makes the scent last longer, but it doesn't carry the scent as far.
| Characteristics | Values |
|---|---|
| Why dilute perfume? | To reduce the strength of a scent that is too overpowering. |
| When to dilute perfume | Before blending to make the process easier; when experimenting with a new formula and using expensive materials to avoid making a large batch |
| What to dilute perfume with | Perfumer's alcohol, Di Propylene Glycol, Benzyl benzoate, Benzyl alcohol, carrier oils (for oil-based perfumes), distilled water, hydrosol/flower water, lotion, or witch hazel. |
| How to dilute perfume | Do not use drops; always use a scale when diluting to get an accurate and repeatable formula. |
| Tips | Alcohol is best for fully diluting ingredients and for spray perfumes; oil-based perfumes are moisturizing and last longer, but do not carry as far. |
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What You'll Learn
Diluting perfume with perfumer's alcohol
When diluting perfume with perfumer's alcohol, it's important to use the correct ratio. A common recommendation is to mix equal parts perfume and alcohol in a small decanter. For example, if you have 50ml of perfume, you would add 50ml of perfumer's alcohol. It's important to mix the solution thoroughly to ensure the ingredients are fully combined.
Perfumer's alcohol is an excellent choice for diluting perfume because it fully dilutes the ingredients and acts as a preservative. Alcohol also helps to lift and radiate the fragrance. As the alcohol evaporates, the scent will spread outward, creating a cloud of scent. This is why commercial perfumes are often alcohol-based. However, it's important to note that alcohol-based perfumes may not last as long as oil-based perfumes, as the scent molecules evaporate more quickly.
Another consideration when diluting perfume with perfumer's alcohol is the type of fragrance you want to create. Alcohol-based perfumes are typically sprayable, while oil-based perfumes may be applied directly to the skin or used in oil diffusers. If you plan to add your diluted perfume to bases such as candles, creams, detergents, or oils, perfumer's alcohol may not be the best choice, as it is specifically designed for creating alcohol-based fragrances.
Finally, it's important to exercise caution when handling perfumer's alcohol. As it is a concentrated form of alcohol, it can be harmful if ingested or if it comes into contact with your skin or eyes. Always wear protective gear, such as gloves and safety goggles, when working with perfumer's alcohol, and ensure the work area is well-ventilated.
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Using carrier oils to dilute perfume
When making perfume, raw materials need to be added to a carrier—a base material that "carries" the scent. Carriers can be used to dilute strong fragrances, making them more subtle and pleasant to wear. They also help to reduce potential skin irritation caused by essential oils and fragrance ingredients.
One option for a carrier is perfumer's alcohol, which fully dilutes the ingredients and acts as a preservative. However, it can dry out the skin. An alternative to alcohol is using carrier oils, which have moisturizing properties and make the scent last longer. The most commonly used carrier oil is fractionated coconut oil, which has been modified to remain liquid at room temperature. It is clear, thin, and leaves less greasy residue than most oils. It also has an indefinite shelf life.
Other carrier oils that can be used include jojoba oil, which is the least heavy of the oils, has no scent, and is similar to the oils naturally produced by the skin. Argon oil can also be used, as can dipropylene glycol, a colourless, odourless, water-soluble liquid.
To dilute perfume using a carrier oil, add the perfume oil to a small glass roller-ball bottle, followed by your chosen carrier oil in a 1:1 ratio. Shake until well mixed, then test it on your skin. If it is still too strong, add more carrier oil, shake, and test again until you reach your desired concentration.
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Di Propylene Glycol as a diluting solvent
Di Propylene Glycol (DPG) is a widely used solvent in the fragrance industry. It is a synthetic diol derived from propylene oxide. DPG is a clear, nearly odourless liquid with moderate viscosity and full water miscibility.
DPG is a popular choice for diluting perfumes as it improves fragrance solubility and slows down evaporation, thereby increasing the longevity of the scent. It also supports uniform scent diffusion. Its technical role is indispensable in both consumer and industrial fragrance systems.
DPG is more commonly used than perfumers' alcohol as it can be used in bases other than alcoholic fragrances. However, it is petrochemical-derived and therefore not suitable for natural perfumery.
When diluting perfume, it is important to use a scale rather than drops to ensure an accurate and repeatable formula. It is also recommended to stick to a 10% dilution rate for most materials, with certain exceptions where 1% is more suitable.
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Benzyl alcohol and benzyl benzoate as blending aids
Diluting perfume is a common practice, especially when dealing with strong fragrances. Diluting a perfume helps to reduce its intensity and makes it more manageable for those with sensitivities to strong scents.
Benzyl alcohol and benzyl benzoate are two ingredients that can be used as blending aids when diluting perfume. These substances are classified as aromachemicals, which means they are not suitable for natural perfumers. They are used to aid the blending of difficult-to-work-with materials. Some materials used in perfumery, such as absolutes and resins, can be challenging to measure accurately in small amounts due to their sticky and solid consistency. Benzyl alcohol and benzyl benzoate help to address this issue by acting as blending aids. They can also enhance the scent profile of the perfume.
Benzyl benzoate, for example, is often added in large volumes to perfumes to impart a floral sweetness. This is because many types of flowers naturally contain benzyl benzoate, so it adds a familiar and pleasant aroma to the fragrance. Benzyl alcohol, on the other hand, may serve multiple purposes. While it has a smell of its own, it can act as a preservative and help extend the shelf life of the perfume.
When using benzyl alcohol and benzyl benzoate as blending aids, it is important to follow certain guidelines. Firstly, these substances should be used in conjunction with a main solvent such as ethanol. Secondly, it is recommended to start with the more robust materials that require heating and then add the remaining ingredients in order of volatility once the mixture has been removed from the heat. This technique ensures that the perfume blend is properly combined and that the volatile ingredients are not affected by excessive heat.
In conclusion, benzyl alcohol and benzyl benzoate are valuable tools for perfumers, enabling them to work with challenging materials and create unique and appealing fragrances. By understanding the properties and applications of these blending aids, perfumers can enhance their creations and provide consumers with a more enjoyable sensory experience.
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Diluting perfume with distilled water
Perfume is typically made by adding raw fragrance materials to a carrier, such as alcohol or oil, which "carries" the scent. Alcohol is often preferred as it helps to lift and project the fragrance outwards. It also functions as a preservative and allows the perfume to be sprayed. However, alcohol can dry out the skin, and the scent may not last as long.
On the other hand, oil-based perfumes are moisturising and tend to last longer on the skin. Fractionated coconut oil is a popular choice as it remains liquid at room temperature and leaves less greasy residue.
When diluting perfume with distilled water, it is important to note that the water must be mixed with alcohol first, as water and oil do not mix. This mixture can then be added to the perfume to reduce its concentration and intensity.
It is worth mentioning that diluting perfume may alter its composition and how it interacts with the skin. Some people suggest alternative methods for softening a strong perfume scent, such as spraying it onto a tissue or cloth, or mixing it with an unscented lotion.
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Frequently asked questions
You can use perfumer's alcohol, which is ethyl alcohol that has been denatured. You can also use a carrier oil such as fractionated coconut oil, jojoba oil, or other flower waters like rose, lavender, or orange blossom.
If you want to dilute a perfume that is too strong, you can try mixing it with perfumer's alcohol in a 50-50 ratio. You can also add a few drops of perfume to an unscented lotion or a hydrosol/flower water.
Alcohol is the best way to fully dilute perfume. It functions as a preservative and allows the perfume to be sprayed. However, alcohol dries out the skin. Oil-based perfumes are moisturizing and last longer, but the scent does not radiate as far.
When diluting perfume, do not use drops. Instead, use a scale to measure the ingredients so that you get an accurate and repeatable formula. Also, do not dilute sealed bottles of perfume and do not use water.
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