Dry shampoo otherwise known as hybrid shampoo is a type of shampoo which reduces hair greasiness without the need for water. It is in powder form and is typically administered from an aerosol can. Dry shampoo is often based on corn starch or rice starch.[ citation needed ] In addition to cleansing hair, it can also be used as a tool for hair-styling as it can create volume, help tease hair, keep bobby pins in place, and be used in place of mousse in wet hair. [1] Dry shampoo proponents attest that daily wash-and-rinse with detergent shampoo can strip away natural oils from hair. [2] However, others attest that spraying dry shampoo every day will lead to a build-up of product that can dull hair color and irritate the scalp, arguing that the scalp needs regular cleansing and exfoliating to get rid of bacteria, remove dead skin cells, and stay healthy. [3]
The powders within dry shampoo are meant to absorb the sebum in hair, which is excreted from sebaceous glands and can give hair a greasy appearance when the oil is overproduced. By absorbing the oils, the greasy appearance of the hair is improved; however, the absorbed oils and powders remain in the scalp, so the hair may appear clean but feel unclean to the user. [4] The user may need to wash their hair with traditional shampoos to actually remove the oils and dry shampoo powder in order for the scalp and hair to feel and appear clean.
Throughout history, people have used powder-based products similar to dry shampoo to cleanse and improve the appearance of hair. Evidence suggests that people in Asia used clay powder to clean their hair as early as the late 15th century. [5] During the Elizabethan era, a lack of regular bathing made clay powders popular among women to cleanse their hair of excess dirt and oil. Some powders were even colored for decorative purposes. [6] Powders were also used by 18th-century British and American elites to absorb the oils in hair and wigs at a time when long hair was a marker of masculine privilege. [7] The first written reference of dry shampoo in the United States is from the late 1700s, when starches were used to deodorize and alter the color of wigs. [8] Other early mentions of dry shampoo include foam substances used by barbers to clean hair in the late 1800s. [9]
The first commercially produced dry shampoo was sold in the 1940s, but the product existed before that. By the early 1940s, the Stephanie Brooke Company of Jersey City, New Jersey had developed Minipoo, the first brand of commercially produced dry shampoo powder. Minipoo was marketed to women and children for use in scenarios such as "surprise dates" or when they were sick in bed, according to the Smithsonian's National Museum of American History. [10] Since 1790, 71 patents have been filed for dry shampoo products in the United States. [11]
Dry shampoo is generally composed of a carrier agent containing an active powder. [12] Normally, starch is used as the active powder. When the powder is sprayed onto hair, the carrier agent evaporates while the starch remains attached. While the active powder can be replaced with other substances such as activated carbon and alumina, these substances are generally not used due to their inability to biodegrade. In particular, activated carbon and alumina leave behind a residue that is difficult to remove. [13] Presently, oryza sativa starch and cetrimonium chloride are the most common starches used in dry shampoos. Dry shampoo in the form of aerosol also often contains a propellant ingredient. [14] The propellant used in dry shampoo usually consists of butane, isobutane, and propane, which makes up 70–90% of the total composition. [14]
Dry shampoos often contain anionic surfactants that do not dissolve in water. The surfactant molecules have a hydrophilic portion as well as a hydrophobic portion to bind with water and oils. Surfactants such as detergents rely heavily on micelle formations. Amphiphile molecules organize into small clusters of micelles with the hydrocarbon non-polar ends facing inwards. [15] When dry shampoo is applied, amphiphile molecules surround suspended oil drops which then can be removed. The anionic substances often leave a form of calcium salts, which are not soluble, in the hair strands that causes hair to be dry and tangled. The alkaline residue may also cause hair and skin irritations. [16]
Dry shampoo can be administered as a powder, where all the ingredients of dry shampoo are combined together and applied to the scalp with the hand, or through the aerosol form where the dry shampoo is sprayed directly onto the head. In the aerosol form, the powders comprising the dry shampoo are dispersed throughout pressurized gas inside a can; when the release is pressed, the pressurized gas and powders inside are released, forming the aerosol that lands on the head or scalp. [17]
This product has also been made at home, in addition to being purchased in stores. DIY dry shampoos usually have some sort of starch base, which is one of the key products in commercially produced dry shampoos, and often contains essential oils for scent. [18]
Herbal powder shampoos are another form of dry shampoo. As a natural hair-care product, they tend to have fewer negative side effects than traditional mass-market shampoos, and contain a dry powder mixture of aloe vera and other plant byproducts to reduce skin, eye, and scalp irritation from surfactants. [19]
Clay has been used throughout history as a form of dry shampoo. The Rhassoul clay, also known as red clay, originating from Morocco is traditionally used as a leave-in shampoo and conditioner. Due to its high absorbance of sebum, clay is often used as a remedy for dandruff and seborrhea. Such properties of clay stem from its colloidal particle size and crystalline structure. Even though clay is generally considered to be a natural non-toxic material, it should not be stored in metal containers due to its retention of heavy metals. [20]
In addition to the liquid shampoos, there are dry shampoos available for pets with fur. The waterless-foaming shampoo is applied directly into the fur of the pet without the need to pre-wet or rinse the pet after application. These shampoos often contain a combination of detergents, antimicrobial agents, and surfactants. Certain conditioners may also contain additional agents such as Melaleuca oil for the treatment of fleas. [21] The foaming component of the shampoo comes from a pressurized gas such as carbon dioxide mixing with a foaming liquid. Once the foam is applied to the fur, the foam needs to be worked in vigorously before being wiped off.
The product is applied to the scalp or roots of the hair, either through aerosol form or directly applying the powder, the powder within the product is allowed to sit on the hair for an extended period of time, and then the powder is massaged or brushed through the scalp. [22] Allowing the product to sit in the hair before brushing it out allows more time for the product to absorb the sebum oils in the hair and brushing out the product would reduce the powder's potentially noticeable appearance.
Cosmetics are composed of mixtures of chemical compounds derived from either natural sources or synthetically created ones. Cosmetics have various purposes, including personal and skin care. They can also be used to conceal blemishes and enhance natural features. Makeup can also add colour to a person's face, or change the appearance of the face entirely to resemble a different person, creature, or object.
Hair conditioner is a hair care cosmetic product used to improve the feel, texture, appearance and manageability of hair. Its main purpose is to reduce friction between strands of hair to allow smoother brushing or combing, which might otherwise cause damage to the scalp. Various other benefits are often advertised, such as hair repair, strengthening, or a reduction in split ends.
The term cleanser refers to a product that cleans or removes dirt or other substances. A cleanser could be a detergent, and there are many types of cleansers that are produced with a specific objective or focus. For instance, a degreaser or carburetor cleanser used in automotive mechanics for cleaning certain engine and car parts.
Shaving cream or shave cream is a category of cream cosmetics used for shaving preparation. The purpose of shaving cream is to soften the hair by providing lubrication.
Hair care or haircare is an overall term for hygiene and cosmetology involving the hair which grows from the human scalp, and to a lesser extent facial, pubic and other body hair. Hair care routines differ according to an individual's culture and the physical characteristics of one's hair. Hair may be colored, trimmed, shaved, plucked or otherwise removed with treatments such as waxing, sugaring and threading. Hair care services are offered in salons, barbershops and day spas, and products are available commercially for home use. Laser hair removal and electrolysis are also available, though these are provided by licensed professionals in medical offices or speciality spas.
A bubble bath is a filled bathtub with a layer of soap bubbles on the surface of the water. Less commonly, aerated or carbonated baths are called bubble baths.
Hair washing is the cosmetic act of keeping hair clean by washing it. To remove sebum from hair, some apply a surfactant, usually shampoo to their hair and lather the surfactant with water. The surfactant is rinsed out with water along with the dirt that it bonds to.
Carpet cleaning is performed to remove stains, dirt, and allergens from carpets. Common methods include hot water extraction, dry-cleaning, and vacuuming.
Shower gel is a specialized liquid product used for cleaning the body during showers. Not to be confused with liquid soaps, shower gels, in fact, do not contain saponified oil. Instead, it uses synthetic detergents derived from either petroleum or plant sources.
Baby shampoo is a hair care product that is used for the removal of oils, dirt, skin particles, dandruff, environmental pollutants and other contaminant particles that gradually build up in hair; specially formulated for use on infants and young children by means of substituting chemicals which are purportedly less irritating to the eyes than those commonly found in regular shampoo.
Personal care products are consumer products which are applied on various external parts of the body such as skin, hair, nails, lips, external genital and anal areas, as well as teeth and mucous membrane of the oral cavity, in order to make them clean, protect them from harmful germs and keep them in good condition. They promote personal hygiene and overall health, well-being and appearance of those body parts. Toiletries form a narrower category of personal care products which are used for basic hygiene and cleanliness as a part of a daily routine. Cosmetic products, in contrast, are used for personal grooming and beautification. Pharmaceutical products are not considered personal care products.
Cleaning agents or hard-surface cleaners are substances used to remove dirt, including dust, stains, foul odors, and clutter on surfaces. Purposes of cleaning agents include health, beauty, removing offensive odor, and avoiding the spread of dirt and contaminants to oneself and others. Some cleaning agents can kill bacteria and clean at the same time. Others, called degreasers, contain organic solvents to help dissolve oils and fats.
Shampoo is a hair care product, typically in the form of a viscous liquid, that is used for cleaning hair. Less commonly, shampoo is available in solid bar format. Shampoo is used by applying it to wet hair, massaging the product into the scalp, and then rinsing it out. Some users may follow a shampooing with the use of hair conditioner.
Dog grooming refers to the hygienic care of a dog, a process by which a dog's physical appearance is enhanced for showing or other types of competition. A dog groomer is a professional that is responsible for maintaining a dog’s hygiene and appearance by offering services such as bathing, brushing, hair trimming, nail clipping and ear cleaning.
Hairstyle products are used to change the texture and/or shape of hair.
Hair washing without commercial shampoo, sometimes called no poo, includes water-only hair washing or hair washing with non-commercial products, such as baking soda and vinegar. Advocates argue that commercial shampoo is an unnecessary expense and may contain harmful ingredients.
Greasy hair is a hair condition which is common in humans, one of four main types of hair conditioning— normal, greasy, dry and greasy dry. It is primarily caused by build-up of the natural secretion from the sebaceous glands in the scalp and is characterised by the continuous development of natural grease on the scalp. A chronic condition of greasy hair may often accompany chronic greasy skin conditions on the face and body and oily skin and acne. Excessive carbohydrate, fat and starch consumption can increase the likelihood of developing greasy hair and also poor personal hygiene and not washing the hair for a long duration will lead to a buildup of sebum in the hair follicles. Hair conditioners can decrease the likelihood of developing greasy hair after shampooing. Some cosmetics companies produce shampoos and conditioners specifically to deal with greasy hair and for oily or dry hair problems. Massaging the scalp and exposure to the sun can reduce the problem of greasy hair.
Hair volumizer is used to temporarily add volume, body, and shine to thin or flat hair. Used by both men and women, most men tend to use it to make their hair look more dense. Volumizers come in many forms such as shampoos, conditioners, sprays, pomades and lotions.
Hair oil is an oil-based cosmetic product intended to improve the condition of hair. Various types of oils may be included in hair oil products. These often purport to aid with hair growth, dryness, or damage.
Face washing, also known as facial cleanliness or face cleansing, is the removal of dirt, germs, oil, debris, and any unwanted materials on the face, possibly with the use of soap or cleansing agent and water. These dirt or unwanted substances from cosmetic products and the environment are hardly soluble in water. The addition of face cleansing products in daily face washing can help effectively eliminate undesirable materials by breaking them down into smaller particles.
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