The main task of cosmetic production is not only to produce good-smelling products with good-sounding names and lists of useful ingredients, but also 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 performed to ensure the consistency of the pH value of the product with the pH value of the skin, but also to ensure good quality, appropriate viscosity, color / odor and durability of the cosmetics.
For example, a too acidic or too alkaline Medium in e.g. shampoo can cause a malfunction and cause scalp problems. Therefore, the pH value in cosmetics is strictly and continuously monitored, 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 ... which are placed on the shelves of the supermarkets. It is important to comply with the requirements and regulations of health organizations and GMP principles!
Many of us experienced at least once that after a short time the pleasant smell of the foam got worse, although everything was fine at the beginning. This is proof that the manufacturer made mistakes during the production process and perhaps did not take sufficient account of the measurement and correction of the pH value. The cosmetic product should not only be perfect on the day of its manufacture and conform to the standard, it should also have a very good stability. Today, many hair and face products are presented as "BIO" - manufacturers of such products need to 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 level 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 (related 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 commonly 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!) Get reliable results.
PH meters used for cosmetics are often portable, very easy to use, lightweight and convenient to use, just like our pH meter. The glass electrode is perfect for use on one side as it is always well kept clean, but on the other hand a glass electrode requires careful handling due to its fragility. Modern electrodes receive a special protection, like "a coat" around them, WAS makes them very robust.
The use of the pH-meter requires attention and careful adjustment. It is necessary to follow all rules regarding the use, cleaning and maintenance of this sensitive instrument. Although the pH tests are carried out on additives or finished products such as shampoo, it is essential to maintain the required ambient temperature as their deviation can lead to incorrect measurements.
The pH value and the maintenance of the The efficacy of cosmetics is one of the reasons why such products should be kept under certain temperatures. Some of them should be stored in the refrigerator or exposed to direct sunlight and excessively warm temperatures.
This text is machine translated.