Soap is a basic cleansing agent composed of long chain fatty acid alkali salts with a pH of between 9 and 10.
As it is well known that the surface of the skin is slightly acidic, the pH of the soap is significant to maintain the acid mantle of the skin. (Very pH?) causes an increase in skin pH, which in turn causes increased dehydration, irritability and alters the bacterial flora.
Types of soaps :
Glycerin bars/ Transparent bars- contains humectant-glycerine to counter the drying effects of soap. Used on dry skin or during cold weather.
Moisturising soaps/ Superfatted soaps- contains greater amounts of lipids such as triglycerides, lanolin, paraffin, stearic acid, or mineral oils which provide a protective film on the skin.
Antibacterial soaps- contain antibacterial agents such as triclosan, triclocarban, or carbanile to inhibit the growth of bacteria and thereby odor.
Syndet (synthetic detergent) bars- have a nonsoap synthetic surfactant such as fatty acid isothionates, sulfosuccinic acid esters as their principal ingredient. These are neutral or slightly acidic pH. They are less irritating to the skin and do not form a soap scum layer.
There some ingredients which are used to help some specific conditions.
Coal tar soap might be helpful in reducing scaling, itching, and inflammation. It has a few side effects, although exactly how it works isn’t clear.
Colloidal oatmeal is a natural ingredient used in the formulation of a range of
personal care products for relief of skin dryness and itchiness.
Glutathione soaps are used for skin lightening purposes.
Benzoyl peroxide(BPO) containing soaps reduce counts of Propionibacterium acnes, thus reducing the emergence of antibiotic-resistant P acnes strains. Effective for facial and truncal acne Vulgaris.
Ketaconazole/ fluconazole soaps are helpful along with other treatments for tinea versicolor and seborrhoea.
Cureka has a soap to offer for every special need.