You probably have heard in advertising soaps and shower gels, chewing gums, and, rarely, creams, mysterious word "Bae Ash."What is it and how much it is really important to us when choosing detergents and cosmetics?Let's look at it this way, so as not to get into too chemical "jungle."RN in Latin - "pundus hydrogenium" - means "weight of hydrogen."This pH value shows the level of alkali in the presence of any solution or solid.Also use the phrase in advertising acid-alkaline balance and a neutral pH.
«Soap dries the skin ..." - this is the main message of advertising expensive shower gel.Indeed, lye - the main ingredient in detergents - has such an effect.However, to give up entirely of alkali is also impossible, because it is using it washed away the dirt.Without alkaline soap - soap is not it, to put the language of the Gospel, it becomes salt that has lost its salinity.So, the pH value indicates how much alkali contained in this product.Remember school science: the lye is extinguished?Correct, acid.Therefore, we extinguish the baking soda and vinegar.These two basic substances in pure form, both have a detrimental effect on the skin: acid irritates and dries the alkali.
pH value can be thought of as a scale from zero to 14. If the pH is equal to zero, then there is no alkali is - a pure acid.If he is the fourteen - a natural alkali.In distilled water, therefore, the pH is equal to seven.At first glance it seems that the seven - is the best indicator of acid-base balance.But no - the water is too dry the skin, and is especially well felt by those who, after a long swimming or bathing feels itchy on the back.How do we find a "middle ground" in order not to feel the harmful effects of acid or alkali in the literal sense in their own skin?
Our skin also has a pH value.It varies within four and a half (in people with oily skin) to five and a half (dry skin).Therefore, the inscription on the soap, lotions or shower gel "balanced pH" means that the product hydrogen level is not more than 4.5-5.0 14-point scale.Same thing in advertising chewing gum: one more reason to chew them - is to quickly restore the acid-alkaline balance of the mouth after eating a meal.But what does the washing?It is the removal of dirt and dead skin particles and at the same time the upper skin layer (what is called peeling effect).The sebaceous glands secrete an acid fat that is eliminated and no more than an alkali.
Therefore, the choice of soap and other detergents, to consider how much you want to take off the protective acid camouflage cloak.After acid prevents water loss, but also it protects against chapping, ultraviolet rays, the harmful effects of the environment.Another thing, when the sebaceous glands - for example, in the period of sexual maturation - produce too much fat.Then, the pores become clogged, leading to the appearance of youthful acne and acne.In this case, it makes sense to choose a cosmetic, where the pH value ph is closer to the mark of 9 - the maximum level of alkalinity, which you will not create early wrinkles and skin will dry gently.
For people with dry skin should be remembered that the level of alkali in the usual cheap lump soap equals 9-11 14-point scale.Such frequent use soap when dry and cover with white shelled touch not only your face, but more hardy hand.For such people, optimal wash soft foam with fruit acids, where the index is nearing the level of ph 3 (the maximum acid level).Such people even after the hand should be used to wash greasy nourishing cream.
