Soap is an anionic surfactant used in conjunction with water for washing and cleaning, which historically comes either in solid bars or in the form of a viscous liquid.Soap consists of sodium or potassium salts of fatty acids and is obtained by reacting common oils or fats with a strong alkaline solution (the base, popularly referred to as lye) in a process known as saponification. The fats are hydrolyzed by the base, yielding alkali salts of fatty acids (crude soap) and glycerol.
soap is a part life everyday, healthy skin dependant on soap product your option. More and more alkalic of soap more and more bad effect on the skin. So, you must care in choice product soap for your skin.
Skin is Protective an anatomical barrier from pathogens and damage between the internal and external environment in bodily defense, Langerhans cells in the skin are part of the adaptive immune system.
Surface skin have acid coating, acid coating is a layer film have the quality acid and protective skin function. Cleanse of skin with soap or detergent can be cause asam coating loss. If acid coating be loss skin have susceptible to infection.
Acidity skin and face normal skin
Acidity normal skin is between 4-6,5 in high feather although varied between be one with other skin. On the a research in India does pH mensuration on the surface skin, 55 brown skin (Indian) comprise 30 male and 25 female in 12-58 years on forehead and wrist, average pH skin on forehead and wrist is 5,51 +- 0,032 and 5,56 +- 0,040 to male, 5,73 +- 0,032 and 5,84 +- 0,28.1 to female. Also find ones way that pH skin not dependant on age. Male skin over acid than female, average grade pH skin on forehead and wrist is same for male in significant while for female pH skin on forehead and wrist different about 5% in significant.
Surface skin affected factor
Be found some disease skin and systematic increase surface skin pH for example eczema, atopik dermatitis, xerosis, dan lamellar ichthyosis. Systematic disease is Diabetes, Cerebrovaskuler, and end-stage. External factor disturb surface skin pH is cleanser for example soap, detergent, moisturizing, topical irritant, and topical antimicrobial.
Acid product effect to skin
Product for protect pH is cleanser. Tree category for cleanser agent is soap, sintetic detergent and grease cleanser agent.
Soap making skin have alkalic than sintetic detergent. Cleanser incleaned for giving effect on skin is Bacteria flora obstruction and pH, moisture and irritation.
