Physical ve Chemical analysis

Physical and Chemical Analysis
Physical and Chemical Analysis

When cosmetics are mentioned, products and substances used to clean the body, increase the attractiveness and improve the appearance. Dressing up, looking beautiful and smelling is a social behavior that has been followed in people throughout history. In every period, people wanted to be decorated in accordance with the culture and conditions of the period. The cosmetic activities, which were previously only used as a means of ornamentation, were established on a scientific basis in the twentieth century.

In cosmetics, only active ingredients of plant origin were used, but nowadays, synthetic materials have been increasingly used and this has caused some problems. In order to select and use the right cosmetics, it is necessary to know which raw materials are used in production, which tests are tested and how they are packaged and sold. These points are the factors that determine the quality, reliability and stability of the cosmetic product.

Safety analyzes in cosmetics are carried out to determine the quantitative, physical and chemical properties and toxicity effects of the substances contained in cosmetic products. However, the exposure level, duration and frequency of the target audience who will use these cosmetic products must also be considered. All these elements are taken into consideration and physical and chemical analyzes are performed in cosmetic products. For all cosmetic products that will be introduced in the laws and regulations regarding cosmetics, manufacturers must make cosmetic product safety assessments.

In this respect, the necessary tests and analysis of cosmetic products is an important issue. These studies are carried out by national and international accreditation bodies, which are accredited according to TS EN ISO / IEC 17025 General Requirements for the Competence of Testing and Calibration Laboratories. Main physical and chemical analyzes carried out within this scope can be listed under the following headings:

  • Determination of anionic active substance
  • Determination of cationic active substance
  • Determination of nonionic active substance
  • Determination of total active substance
  • Determination of salt
  • Inorganic salt determination
  • Determination of fluoride
  • Determination of heavy metals
  • Determination of fat content
  • Determination of water content
  • Physical examination
  • Determination of pH
  • Determination of density
  • Determination of viscosity
  • Determination of total acidity
  • Determination of total alkalinity
  • Determination of dry matter

The said laboratories must comply with the principles of the Communiqué (Communiqué No: IEG-2005 / 1) issued by the Ministry of Health in the testing and analysis studies on the Analysis Methods Required for the Control of Cosmetic Product Compositions. This communiqué was prepared in accordance with the principles of the First Commission Directive on the Analysis Methods Required for the Control of Cosmetic Product Compositions 80 / 1335 / EEC issued by the European Union. This Communiqué, published in 2005, aims to determine the principles of the analysis methods in the following subjects:

  • Taking samples in cosmetic products
  • Determine the quantities to be taken for analysis
  • Identify and detect free sodium and potassium hydroxides in the sample
  • Identify and identify oxalic acid and alkali salts in hair care products
  • To identify and detect chloroform in toothpastes
  • To identify and detect zinc and phenol sulfonic acid in cosmetic products

Accredited laboratories shall comply with the following analysis methods described in the annex of the notification in their test and analysis studies in accordance with this Communiqué (Annex 1):

  • Method I - Sampling Method from Cosmetic Products
  • Method II - Quantities for Analysis in Cosmetic Products
  • Method III - Diagnosis and Determination of Free Sodium and Potassium Hydroxides
  • Method IV - Diagnosis and Determination of Oxalic Acid and Its Alkali Salts in Hair Care Products
  • Method V - Determination of Chloroform in Toothpaste
  • Method VI - Determination of Zinc
  • Method VII - Diagnosis and Determination of 4-Hydroxybenzenesulfonic Acid

In addition to the aforementioned Communiqué No. 2005 / 1 issued by the Ministry of Health, six other communiqués concerning a wide range of cosmetic products have been published.