Efficacy Evaluation and Hair Metrology

Clinical Studies for Hair

The methodologies are divided into two areas of evaluation of hair products: Clinical Efficacy and Hair Metrology.

Hair Metrology


The area of 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.

Clinical Efficacy


The area of clinical efficacy aims to answer to problems related to anomalies of the scalp that alter the healthy aspect of the hair and the quality of life of the people who have these anomalies.

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Fiber integrity: where the physical parameters of mechanical resistance, thermal degradation and harm against external factors are analyzed.


Image analysis: in which the micro and macro visual parameters of the hair and hair fiber are analyzed in a way of inferring how the fiber behaves after the products application and under the external effects of superficial structural modifications.


Research and Development: in which new methodologies of evaluation are studied and developed to prove the efficacy and/or knowledge of products directed to the reality of the consumers, translating into numbers what is usually perceived by them.

Created and idealized over 30 years ago, Allergisa aims to solve the most diverse problems related to proving of efficacy and safety of cosmetic products for the skin and the hair.

With an extensive variety of in vivo methods for the niche of skin products, we started, in 2017, a partnership to provide services to the segment of cosmetic products for the hair and, thus, making viable to the sector the most advanced methodologies of the efficacy of cosmetic products in general.

Our mission is to deliver quality and transparency, always helping out clients in the restless search for the ideal product.

Hair product effectiveness tests
Hair product effectiveness tests

Brazil is, today, the number one market in cosmetics of the most diverse types and the formula for this success is in our ethnic diversity that probably makes us the most demanding customers in the world!

The hair market is not different! One single head may contain many different types of hair and for the products to work, it is not enough that they meet only one type in specific. For that, the department of hair metrology and efficacy evaluation of Allergisa has the most advanced methods of evaluation, all of them based on the perception of these demanding consumers. Thus, we assure the satisfaction of the final decision maker: the consumer.

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Contact Information

452, Dr Romeu Tortima Avenue– Barão Geraldo, Campinas, SP, Brazil

+55 19 3789 8610