The methodologies are divided into two areas: Clinical Efficacy and Hair Metrology.
Clinical Efficacy aims to answer problems related to anomalies of the scalp that alter the healthy aspect of the hair and the quality of life of the people with these anomalies. In this area, the increase or reduction of sebum and oiliness are tested, as well as the appearance or decrease of dandruff caused by the factors mentioned above and the growth and strengthening of the bulb and the hair on subjects with the most diverse types of hair in our extensive subjects’ database. The clinical efficacy area also has a monitored collection of hair swatches for specific studies.
Hair Metrology is directed, mainly, to proving the efficacy of cosmetic products in hair swatches acquired from certified suppliers and following a strict ethics code. We do not buy hair from suspect sources of smuggling; we always certify that the hair was donated voluntarily and no damage or trauma was caused to the donor. All the purchased hair goes through a quality control process before being used in tests.
In the end, we provide performance evaluation reports of the most common consumer attributes, such as: softness, shine, frizz and volume control, moisturizing, hair conditioning, strength, oil reduction, hydration, breakage reduction, hair loss, anti-dandruff, hair nutrition, repair, heat protection, color maintenance, split ends prevention, curly hair motion, and curl retention.
International Research Services, Inc. (IRSI) is a privately held clinical research company founded in 1977 that serves the cosmetic and pharmaceutical industries.
Specializing in dermatological safety and efficacy testing, IRSI is a leader in biophysical instrumental analysis of the effects of test products on human skin conditions. For over 40 years of history, IRSI has become a reference in the development and conduct of clinical tests for products from different markets, such as pharmaceutical, cosmetic, hygiene, food and nutrition. In partnership with Allergisa, a Brazilian company with over 25 years of experience in these segments, the tests are carried out within the strictest standards of safety, which guarantees the credibility of the products that will reach people's homes.
The information presented here was acquired by UL from the producer of the product or material or original information provider. However, UL assumes no responsibility or liability for the accuracy of the information contained on this website and strongly encourages that upon final product or material selection information is validated with the manufacturer. This website provides links to other websites owned by third parties. The content of such third party sites is not within our control, and we cannot and will not take responsibility for the information or content.
International Research Services, Inc. (IRSI) makes their documentation available in the regions indicated below:
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