PCE Instruments PCE-PH20P pH meter pH

The main task of cosmetic production is not only to produce well smelling products with good sounding names and lists of useful ingredients, but to make them efficient, so that these products really improve the condition of the skin or hair and do not damage them under any circumstances. The pH measurement in cosmetics is a priority test that should not only be carried out to ensure that the pH of the product is consistent with the pH of the skin, but also to ensure good quality, suitable viscosity, color/odor and durability of the cosmetics. A medium that is too acidic or alkaline in, for example, shampoo can cause, for example, a disturbance and cause scalp problems. This is why the pH value in cosmetics is monitored strictly and continuously and not only in the final product! It is important to understand that monitoring is necessary in all phases: First in the raw materials and all ingredients, then during the production process and finally in the finished shampoo, gel / dye / foam ... shampoo, which are placed in the shelves of the supermarkets. Here, the requirements and regulations of health organizations and GMP principles must be fulfilled! Many of us have experienced at least once that the pleasant smell of the foam gets worse after a short time, although everything was in order at the beginning. This is proof that the manufacturer made mistakes during the production process and may not have observed the measurement and correction of the pH value sufficiently. The cosmetic product should not only be perfect on the day it is manufactured and to the standard, it should also have a very good stability. Nowadays, many hair and facial products are presented as "BIO" - manufacturers of such products must remember that it is much more difficult to produce such a product. The natural ingredients that make the product "BIO" can be quite "capricious" and their pH value must be monitored very closely. When talking about standard cosmetic products (both hair and skin), the ideal pH is between 4.5 … 5.5. Depending on the skin type for which the product is intended and also on the function of the product (refers to chemical substances, hair dyes, strong hair and body sprays), the values may be lower and higher. The use of a pH meter with a special glass electrode is one of the well-known methods of pH measurement in cosmetics. The pH-meter ensures that you can measure shampoo, liquid cleaning toners and foams, gels and many other substances (water-containing!) Reliable results. PH meters used for cosmetics are often portable, very easy to use, light in weight and comfortable to use. The glass electrode is perfect for use on the one hand because it is always well kept clean, but on the other hand, a glass electrode requires careful handling due to its fragility. Modern electrodes receive special protection, like "a coat" around them, which makes them very robust. The use of the pH electrode requires attention and careful adjustment. It is necessary to follow all rules regarding the use, cleaning and maintenance of this sensitive instrument. Although pH tests are performed on additives or finished products such as shampoo, it is imperative to maintain the required ambient temperature, as their deviation can lead to erroneous measurements. The pH and the maintenance of the efficacy of cosmetics are one of the reasons why such products should be kept at certain temperatures. Some of them should be kept in the refrigerator or exposed to direct sunlight and excessively warm temperatures.

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