Before cosmetics are put on the market, they need to go through a series of strict testing procedures to ensure their quality and safety. In order to protect the health of consumers and meet their needs, cosmetics factories, brands and third-party testing agencies will conduct a variety of testing items, including microbiological testing, stability testing, compatibility testing with packaging, sanitation chemical testing, pH value determination, toxicological safety experiments, and human safety and efficacy evaluation.
Microbiological Testing
Microbiological testing is a crucial step carried out by cosmetics factories. It involves testing for parameters such as total colony count, fecal coliforms, Staphylococcus aureus, Pseudomonas aeruginosa, molds, and yeasts. These tests assess the presence of bacterial and fungal contamination, thereby ensuring the hygiene and safety of the products.
Stability Testing
Depending on the environmental conditions, cosmetic products may undergo unsafe qualitative changes. With stability testing, manufacturers can ensure that products maintain their functionality during shelf life and consumer use. This is also done to ensure the physical aspects of the product and its chemical and microbiological quality.
Compatibility Testing with Packaging
The choice of packaging is very important. As certain ingredients/formulations can easily react with other materials, this may pose a risk to consumers. In compatibility testing, it is checked whether there is any leakage between the product formulation and the packaging, damage to the packaging due to corrosion, and whether there is a change in product function or a change in product aesthetics due to contact with packaging materials.
Sanitary Chemical Testing
Sanitary chemical testing aims to evaluate the levels of harmful chemical substances in cosmetics. It encompasses the detection of indicators such as mercury, lead, arsenic, as well as the content of restricted or prohibited substances like hydroquinone, nitrogen mustard, thioglycolic acid, hormones, and formaldehyde. Additionally, other parameters such as pH value are measured. Through these tests, the products can comply with safety standards and avoid potential harm to human health.
Toxicological Experiments
Toxicological experiments play a vital role in assessing the potential toxicity and irritability of cosmetics to human beings. Common cosmetics require acute skin irritation tests, acute eye irritation tests, and repeated skin irritation tests. Special-purpose cosmetics, apart from these three tests, also need to undergo skin sensitization tests, phototoxicity tests, Ames tests, and in vitro mammalian cell chromosomal aberration tests. These experiments comprehensively evaluate the safety of the products, ensuring they do not cause skin or eye irritation or trigger allergic reactions.
Human Safety and Efficacy Evaluation of Special-Purpose Cosmetics
The evaluation of human safety and efficacy of special-purpose cosmetics includes patch tests, human usage tests, SPF value determination, PA value determination, and waterproof performance measurement.
By adhering to these testing items, Topfeel strive to deliver cosmetics that are both effective and safe for consumers worldwide.
Post time: Jun-19-2023