Skin Types and Fragrances
There has been much discussion about how
fragrances smell differently on different people. The major factor is the skin type, i.e. dry, normal, and oily skin. (This classification does not take into account the issue of sensitivity of skin, another topic entirely.) The effect of skin type on
fragrances is most notable with colognes and eaux de toilettes with flowery, citrusy, or fruity aromas because of their relatively light scents and high volatility.
The simplest differentiation is that between dry skin and oily skin. One can gauge the oiliness of the skin by feeling how hydrated it seems to the touch. The less dry it feels, the more oily it is likely to be.
Dry Skin
Most fair-skinned and light-haired people tend to have drier skin. Dry skin is characterized by tiny or nearly invisible pores, low elasticity, and roughness.
Fragrances tend to evaporate quickly on dry skin because there is little oil to which their molecules can adhere, as well as being absorbed below the surface more readily. To maximize scent longevity, it is best to moisturize dry skin with water and/or an unscented - or similarly scented - lotion, rubbed in well, before spraying on a
fragrance. (In addition, staying away from shower scrubbing implements that remove beneficial oils helps. And frequent use of a high-quality body lotion or body butter, especially after bathing, will help to keep the skin moisturized and enable it to hold scents longer.) If using an unscented moisturizer, some have found it helpful to spray a little of the
fragrance onto the moisturizer before it is applied to act as a sort of 'primer.' A small amount of petroleum jelly or shea butter can be applied to pulse points before the
fragrance is added. It also helps sometimes to mix a
fragrance with coconut oil or grapeseed oil before application. Reapplication of
fragrance after a few hours often is needed. Another choice is to buy perfume oils rather than standard
fragrance liquids, since oils are much less diluted, or to layer a scented oil with its matching or similar perfume
fragrance. It is recommended that those with dry skin avoid rubbing their scented wrists together after spritzing of the
fragrance to prevent 'weakening' of the scent.
Says perfume expert Don Donovan, "Dry skin needs bigger
fragrances with a good solid base to hold up the
fragrance and make it last. Orientals and chypres work well, as do spices and the heavier blooms like tuberose." Intoxicating, stronger, or heavier 'winter' type colognes with high oil concentrations seem to match dry skin well. Musky, spicy, and woody scents or those with very heady floral and aromatic notes such as patchouli and ambergris are ideal.
Fragrances recommended for dry skin include:
Aramis JHL
Bvlgari Aqua
Chanel Egoiste Platinum
Creed Green Irish Tweed
Czech & Speake Cuba, Vétiver Vert
Davidoff Good Life, Zino
Givenchy Blue Label
Gucci Envy
Guerlain l'Instant pour Homme
Hugo Boss Selection, In Motion
Jean Paul Gaultier Fleur du Male
Kenzo pour Homme
Serge Lutens Ambre Sultan
Normal Skin
Normal skin is characterized by clear complexion and barely visible pores. Since normal skin has more oil content than dry skin,
fragrances last longer.
Oily Skin
Those with darker hair generally have oilier skin with more natural moisture and larger pores. Oily skin might be considered the 'best' for
fragrances, since scent molecules cling tightly to it and remain present longer. Abundant natural skin oils also appear to trigger reactions among the compounds in a
fragrance, making the smell more intense. Those with dark hair and/or oily skin should use less
fragrance as a rule.
Oily skin will hold top notes for longer periods and will also exaggerate certain elements such as sweet nuts or other very sweet notes, which then can be perceived as overwhelming. Fruit, especially citruses, can do very well on oily skin. Very light floral or orange scents are said to be ideal. Oily skin also complements musky
fragrances well, the oil molecules bonding together to shape scent character and depth, but the musk smell will persist tenaciously, so only a little
fragrance should be used. Says Donovan, "The general rule is that oily skin makes
fragrances pop. [It] can turn a quite modest, discreet scent into a magnum opus. However, you have to be careful: certain elements can become too much and upset the balance of a perfume. I had a client who just loved a scent to pieces on the blotter, but on her skin it became syrupy."
It is recommended that those with oily skin moisturize normally but use a lighter lotion specifically created for their skin type. They should choose only one body area to apply a
fragrance, as opposed to two or three areas; the neck or the wrists would seem to be ideal. And frequent re-application of
fragrance should be avoided. Generally, people with oily skin seem to do best with 'summer' type colognes.
Recommended
fragrances for those with oily skin include:
Czech & Speake Neroli, Oxford & Cambridge
Dior Homme Sport, Homme Intense, Homme Eau
Joop Nightflight
Kenneth Cole Black
Le Labo Bergamote 22
Malin & Goetz Lime Tonic
Oscar for Men
Prada Infusion d'Homme
Ralph Lauren Polo (various)
Terre d'Hermes Tres Fraiche
Trumper GFT
Versace pour Homme
Other Factors
One's body chemistry, temperature, oils, and bacterial presence play important roles in how a perfume is expressed on the skin (including the specific notes that emanate), as well as the duration of the scent. Perfume writers state that up to 30% of questions from their readers are about skin chemistry and its effects on
fragrance. Among journalists and writers, the opinions often seem to fall into two very different groups: skin chemistry does not matter at all or skin chemistry determines everything. Perfumers generally believe fervently in chemistry influencing the way a
fragrance evolves on the skin, and many insist on smelling their compositions on a number of different people before making decisions at various stages of
fragrance development. However, states Donovan, "I have to say that, sadly, there has been no scientific investigation into this." Despite this, it appears to most that the top note is where differences are particularly noticeable, although the drydown also can be altered.
Perhaps the most important skin factors affecting a scent are the pH balance and the temperature. Skin acidity or alkalinity (variances in pH levels) differ from person to person and change with age, chemically affecting a
fragrance's ingredients and how they smell in different ways. Normal healthy skin pH usually is slightly acidic at pH 4.4-5.5 (with neutral pH being 7), while alkaline skin has a pH at 7 or above. Medical conditions like eczema can cause skin alkalinity, as can external factors such as some bar soaps, while other types of skin ailments and diabetes can make the skin more acidic, with a lower pH. Skin becomes more alkaline with drying and with aging. There is controversy, but some writers claim that a perfume or cologne is expressed most fully on the skin when the pH is slight alkaline at 7.35-7.45, although perfume
fragrances may develop more rapidly on acidic skin. Others believe that the 'ideal' pH for scent projection and longevity varies among individuals, further necessitating a trial and error approach to choosing
fragrances despite the general rules. Donovan recommends use of a shower gel designed for sensitive skin, which will help to regulate and stabilize the pH. Interestingly, natural redheads are reported to have slightly more acidic skin than those with other hair colors.
Generally, a person with a higher basal body temperature will have warmer skin and
fragrances will not last as long, although this is influenced also by the clothing worn and the ambient environment.
Another factor influencing the expression of a
fragrance is the balance of hormones and fatty acids present in the skin, which varies greatly from one individual to another, as well as changing from day to day and with age. Variations in factors such as stress and anxiety also can have an effect through hormone changes. It is thought that the effect of hormones is partly due to their influence on populations of skin bacterial flora, in addition influencing the pH.
A person's lifestyle is a major overall factor, including diet, exercise, whether or not one smokes, whether or not an infection or inflammation is present, and the medications being taken (internally or applied externally, especially if the medications are used for prolonged periods). In ancient times, doctors would smell the wrists of their patients in order to determine their diet and their states of health. An individual with a balanced diet has a different basic body smell than someone with a more rigid diet; vegans and vegetarians smell different than people who eat a lot of meat or fish. People who eat spicy foods, including foods with sulfur such as garlic or onions, and curries with cumin, have a distinct strong smell that seeps through the pores and imparts an undertone to
fragrances, sometimes for the better and sometimes for the worse. This is not due to a chemical reaction but rather just to the effect of layering a scent over a base of 'eau de garlic.' A low-fat diet will result in lower oil levels in the skin, and
fragrances will tend not to last as long. Alcohol intake will also affect a
fragrance, since it is secreted through the skin (along with sugars in the case of a hangover), increasing the loss of smaller, lighter scent molecules as well as affecting the pH and bacterial growth. Coffee can have an effect on
fragrances, but this seems to be somewhat unpredictable. And generally, those who exercise frequently will notice that their
fragrances do not last as long because increased body temperature causes more rapid dissipation.
(A simple experiment to demonstrate the effect of ingested foods is to drink an infusion of fenugreek seeds at bedtime and smell the arm in the morning, at which time a caramel or maple syrup scent should be perceived on the skin.)
Pheromones also seem to play a role in how
fragrances smell on a particular individual, although scientific research is lacking and many aspects remain debatable. Pheromones are predominantly secreted on the neck, so
fragrances applied in that area will be most affected.
One obvious factor in the interaction of body chemistry and
fragrances is perspiration. When sweat mixes with a
fragrance, there are thought to be chemical reactions, which vary with different ingredients, with brands of scent, and due to personal body chemistry. In general, 'summer' scents such as citrus and grasses mix well with and are amplified somewhat by sweat, taking on additional depth as the perspiration evaporates and the scent lingers. Examples of products that seem to do especially well with perspiraton are Hermes Eau d'Orange Verte, l'Artisan Parfumeur Timbuktu, and Chanel Allure. In contrast, some ingredients such as blackcurrant leaf, musk, and woods are not affected well by sweat.
Influences that have been discussed but about which there is no scientific study at all are the blood type and the color tone of the skin. Lighter skin tends to have finer graining of pores, with less oily sebum secreted, so it is likely to project
fragrances more 'loudly' and to lose them more quickly. It is said also that more darkly pigmented skin seems to project gourmand and vanillic scents especially well and loses lighter and greener scents relatively quickly, while less pigmented skin may in some way 'hold on' better to aromatic scents.
Although all
fragrances are affected by these factors to varying degrees, it is thought that green, fruity, and citrusy compositions seem to be particularly sensitive to them. It seems that clean, dry skin shows less effect than damp skin or skin with added external factors such as dirt. Recently, techniques based on headspace analysis and solvent swabbing have been developed to monitor
fragrance concentrations on and above the skin while they are in use, using relatively inert surfaces such as vitreous tile as controls, in an effort to quantitate perfume behavior changes and their underlying processes. So far there has been little evidence released, but there seem to be indications that chemical degradation reactions occur most readily in the underarm area, probably due to microbial catalysis. It may be possible in the future to elucidate these chemical reactions and design specific
fragrance effects around them in order to enhance the overall experience for an individual.