If you want to go ahead with a body wash OEM and set up your own brand of body wash, then you need to have a general understanding of body wash formulation ratios. Body washes are commonly used for personal skin cleansing and they are made up of three main components: surfactants, skin conditioners and sensory additives. Read this article to get a general body wash OEM idea about the composition of body washes.
It mainly plays the role of skin cleaning and decontamination and sterilization, and its main components are anionic surfactants with better decontamination effect, high safety, mild nature and moderate price, such as: AES-Na, K12NH4, AESNH4, MAPK, soap, nonionic surfactant 6501, APG, amphoteric surfactant BS-12, CAB, imidazoline, etc..
Basic idea
The main function of shower gels is to wash clean the excessive oil, dirt, sweat stains and human secretions adhering to the human skin to keep the body clean and hygienic, and this function mainly depends on surfactants to be realized. Therefore, a variety of surfactants must be used in all body wash formulations, constituting the main ingredients of body washes
Secondly, surfactants remove skin impurities while removing skin surface oils, which tends to cause dryness and roughness of the skin surface. In order to counteract these side effects and effectively protect the skin from damage, it is necessary to add a conditioning ingredient and a moisturizing ingredient to the formulation.
In order for the product to remain stable for a long period of time, without deterioration or failure. Sensory additives such as thickeners, antimicrobials, pearlizing agents, flavors and colors are also added.
Principle of surfactant selection
Surfactant is the main ingredient of shower gel, which uses its own adsorption, lower surface tension, penetration, emulsification, solubilization, dispersion and other effects to give the product excellent degreasing power, decontamination power and rich foam.
The principle of selecting surfactants for body wash is to seek a balance between detergency and skin protection. It should be able to effectively remove the dirt on the body, but not excessive degreasing of the skin, not to mention that it is not allowed to irritate the skin and damage the skin tissue. The two requirements are contradictory and special attention must be paid.
Science and technology is changing rapidly, now can be used in the shower gel surfactant varieties can have dozens of varieties, theoretically, the formulation design process of raw materials to choose a large margin.
However, taking into account the degreasing power, decontamination power, foaming power, irritation, stability and price and other factors, most of the body wash formulations are still based on the selection of anionic surfactants, plus some amphoteric surfactants as a supplement.
Principle of humectant selection
Humectants are the most basic properties of personal care products. In the formulation design of bath and shower products, in order to avoid excessive degreasing of surfactants causing skin dryness, as a bath product for skin cleansing, the role of skin protection of emollient moisturizing agent is an indispensable additive.
Alcohols with high molecular weight, soluble in water and high boiling point, such as glycerol, ethylene glycol, sorbitol, polyglycol, etc., can be selected. They are adsorbed on the surface of the skin during bathing and are not easily washed away with water. After the surface moisture evaporates, a protective film is left covering the skin, preventing or slowing down the loss of internal moisture, which can keep the skin moisturized.
Principle of emollient selection
Emollients in the formulation, mainly play a role in reducing the irritation of shower gel, regulating the skin feeling during and after bathing, improve the appearance of the product performance.
Attachment of fat-type shower gel can also be added through the emulsification of oil emollients, such as branched-chain esters, polyoxyethylene natural oils, lanolin and silicone oils, etc., directly after bathing in the skin to leave a layer of oil film, replenish the lost due to the bathing of the oil content, emollient effect is better. Combine bathing and moisturizing, suitable for frequent bathing, little dirt and delicate skin.
Physical and chemical properties of standard considerations
The pH value of human skin is weakly acidic, and the pH value range is generally 5.5-6.5. Therefore, the pH value of shower gel should be consistent with this, and the degreasing power will be lower. Moreover, at this pH, amphoteric surfactants such as betaine show cationic properties, which can play a role in sterilizing and softening. Citric acid is often used to adjust the pH.
People’s usage habits require shower gels to have a specific consistency. Betaine-type amphoteric surfactants and nonionic surfactants such as alkanolamides and amine oxides are thickeners in their own right, and their dosage can be adjusted to change the consistency of the product.
In addition, some water-soluble polymers can be used, such as polyethylene glycol (6000), Carbopo1 resin, cellulose derivatives, etc., as well as inorganic salts such as sodium chloride, ammonium chloride, sodium sulfate, etc. can also increase the viscosity of the product. A suitable viscosity increases the stability of the product and makes it less prone to delamination.
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