Lance Carson
The scent of perfume is a complex interplay of various factors, and what may be a delightful aroma for one person may be a terrible stench for another. The unique chemistry of each individual, influenced by factors such as skin type, pH levels, body temperature, and hormones, causes perfumes to smell different on different people. Additionally, the environment, storage methods, and age of the perfume also play a role in how it smells. Understanding these factors can help explain why perfume can sometimes make a smell worse.
| Characteristics | Values |
|---|---|
| Perfume smells worse with time | The scent can smell faded, sour, or musty. |
| The colour may change. | |
| Citrus and floral notes turn first. | |
| The perfume may smell worse due to oxidation. | |
| Humidity can speed up expiration. | |
| The perfume may be exposed to bacteria or dirt. | |
| Individual differences | Skin type, pH levels, and body temperature affect how perfume smells on different people. |
| Skin oils capture and hold fragrance molecules, making the perfume smell more intense. | |
| People are drawn to scents that work with their natural body odour. | |
| Hormones can alter a perfume's intrinsic nature. | |
| The scent of perfume can be altered by body wash, laundry detergent, fabric softener, soap, lotion, and sunscreen. | |
| Temperature and humidity affect how a fragrance performs. | |
| Pollution, cigarette smoke, and indoor air conditioning can affect how a fragrance is perceived. |
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Fragrance oxidation
Fragrances are made up of a variety of chemicals, with the biggest class being alcohols, and the second-biggest being aldehydes and ketones. The chemical composition of a fragrance determines how it smells and how long it lasts.
Perfumes do not typically "expire" in the same way that food does, but their scent can be altered over time. One of the ways this alteration occurs is through oxidation. Oxidation occurs when there is too much oxygen inside the perfume bottle, which alters the molecules of the fragrance. This can make the perfume smell "off", sour, acidic, or like plastic or nail varnish. The oxidation can come from the top notes of the perfume, such as citrus, aromatics, and other fragile molecules with low molecular weight, like some floral notes. These molecules are the first to evaporate as a fragrance wears throughout the day.
The risk of oxidation can be increased by factors such as exposure to light, heat, and humidity, which can break down and alter the molecules of a fragrance. Storing perfume in a cool, dry place, away from direct sunlight, can help to slow down the oxidation process. Additionally, transferring the perfume to a smaller bottle once it is partially empty can reduce the amount of oxygen inside, thus prolonging its freshness.
Some fragrances are more prone to oxidization than others due to their chemical composition. For example, Chypre fragrances with a high concentration of patchouli tend to be less stable, while woodsy notes, amber, and leather are more stable and long-lasting.
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Skin type
Firstly, the pH balance of the skin can alter how a scent smells. The skin's pH measures its acidity or alkalinity, and this balance can be disrupted by various factors, such as diet, hormone levels, and environmental conditions. For example, a diet rich in garlic and spices can affect body odour, which then interacts with perfume and changes its character. Similarly, hormonal changes during menstruation, pregnancy, or menopause can impact skin chemistry and how it retains scent molecules.
Secondly, skin type, categorized as oily, dry, or a balanced combination of both, can significantly affect the perfume experience. Oily skin, with its abundance of sebum, tends to make perfumes last longer and smell more intense. This is because the oils attract and hold the ingredients in the perfume, intensifying the fragrance. On the other hand, dry skin may cause perfumes to evaporate faster, requiring frequent reapplication.
Additionally, the natural bacteria on the skin, which break down sweat and oils, can also influence how perfume smells. These bacteria, along with the skin's natural oils, create a unique chemical fusion that impacts the ultimate character of the fragrance.
It is worth noting that other factors, such as hair colour, skincare products, and environmental conditions, can also play a role in altering how a perfume smells on an individual. Skincare products like moisturisers, body oils, and sunscreens can create a barrier that traps fragrance molecules, prolonging the scent. Similarly, hair colour influences the natural oils produced by the scalp, which can interact with the fragrance and subtly change its scent. Environmental factors like temperature and humidity can also affect the strength and longevity of a perfume.
Therefore, the unique combination of skin type, skin chemistry, and external factors determines how a perfume's scent will develop and evolve on an individual.
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Body chemistry
Hormones and diet are other key factors in body chemistry that influence how perfumes smell. Hormonal changes, such as fluctuations in estrogen levels, can impact body odor and how a perfume interacts with it. Similarly, consuming strongly flavored foods like garlic and spices can blend with the perfume, creating a unique scent. Stress levels and diet quality can also play a role, with some individuals noticing that their perfume smells different or less pleasant when they are stressed or eating an unhealthy diet.
The way a fragrance is applied can also make a difference. Rubbing the scent onto the skin can expedite osmosis, causing the perfume to remain on the skin's surface. Additionally, spraying perfume on areas with higher moisture content, such as the neck and shoulders, may help prolong the scent.
Individual differences in body chemistry and skin type mean that a perfume may not smell the same on everyone. Skin chemistry can determine which types of perfumes mix well with an individual's natural body odor. Understanding these factors can help consumers make educated decisions when choosing a perfume that complements their body chemistry and expresses their individuality.
Moreover, the complex nature of fragrances, with their numerous chemical compounds and synthetic materials, adds to the variability of scent expression across different wearers. The interaction between a perfume's chemical composition and an individual's body chemistry can lead to unique scent experiences. This complexity underscores the importance of testing perfumes on one's skin before purchasing to ensure a harmonious fusion of fragrance and body scent.
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Perfume ingredients
Some of the toxic chemicals found in fragrances include phthalates and synthetic musks, which can accumulate in the body and act as hormone disruptors. Women are more vulnerable to the potential health effects of fragrance ingredients, which can impact fertility and pregnancy. For example, one study found higher levels of synthetic musks in the blood of women who regularly used fragranced products.
To avoid potential health risks, some people choose to reduce or avoid fragranced products altogether. However, it is important to note that not all fragrance ingredients are harmful. Many natural fragrances, such as sandalwood, cedar, and oud, can enhance the character of a specific fragrance. In addition, some unusual ingredients, such as cactus, soybean, and even marijuana, are used to create unique and memorable scents.
One interesting ingredient used in perfumery is civet, a natural substance produced by a cat-like mammal from tropical Asia and Africa. Pure civet has a strong and pungent smell, but when diluted with alcohol, it transforms into a radiant and floral fragrance. Synthetics have replaced natural musk in most perfumes, but civet farming still exists in some parts of the world. Another important ingredient in perfumery is ambergris, which is often used as a fixer to improve the longevity of a fragrance. It is commonly associated with gourmand, warm, or woody notes and can enhance the depth and sensuality of a perfume.
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Storage methods
Storing perfume in the bathroom is not recommended due to the constant temperature and humidity changes caused by the use of hot and cold water. Anne Serrano-McClain, a natural perfumery and aromatherapy expert, advises against it, explaining that the humidity from the shower or bath can oxidise the more delicate ingredients, such as citrus and floral notes, altering the scent and colour. Instead, perfume should be stored in a cool, dry, dark place, away from direct sunlight, such as a bedroom cabinet or closet, a vanity, or a dresser drawer.
The ideal temperature for storing perfume is between 15°C and 20°C (59°F and 68°F). Higher temperatures increase molecular motion, accelerating evaporation and chemical reactions that degrade the fragrance compounds. For this reason, refrigeration is not recommended as it can alter the consistency of the perfume. However, if you live in a hot climate, you may want to invest in a humidifier to remove moisture from the air.
To further protect your perfume from degradation, you can store it in its original packaging, placing the bottle inside an airtight bag to prevent air and light from reaching it. Additionally, you can use silica gel packets near your perfume storage area to control moisture and keep your perfume in optimal condition.
If you have a large collection, you may want to consider investing in a specialised perfume storage cabinet with UV-protective glass. This will protect your fragrances from UV rays, which break down the molecules in a fragrance, changing its scent and causing it to fade faster.
Finally, if you have a large bottle of perfume that you rarely use, consider decanting it into smaller bottles to limit exposure to oxygen and slow down oxidation.
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Frequently asked questions
The most important reason fragrances smell different on different people is individual skin chemistry. Skin acts as the surface where fragrance molecules interact, and depending on a variety of factors, that interaction can vary dramatically. Skin type, pH levels, body temperature, and hormones can all affect how a perfume smells on you.
Depending on the quality of ingredients and storage methods, most fragrances remain potent for three to five years. Citrus and floral notes turn first, so they are likely to smell worse over time.
Where you are when wearing a fragrance also matters. Temperature and humidity can affect how a fragrance performs. In hot, humid climates, scents tend to be stronger because the moisture in the air enhances the fragrance molecules, making them more noticeable. Conversely, cold or dry environments can make a perfume fade faster because the lack of moisture causes the scent to dissipate more quickly.
