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Dermatologist Tested’ and ‘Clinically Tested’ are commonly seen on cosmetic products, ranging from color cosmetics, to bath and body care products.

To claim the product as such, adequate supporting evidence has to be collected before marketing. Patch test is one of the popular means for substantiating these claims.

What is patch test?

Human patch test is carried out on human panelists to study the primary skin irritation in response of testing samples. It is suitable for evaluating the irritation potential of cosmetic products at formula development stage to ensure the product safety. The test product is applied on the skin of panellists, and is kept in contact with skin for a specified period of time, in general, 48 or 72 hours.

What is Human Repeated Insult Patch Test?

Human Repeated Insult Patch Test (HRIPT) is carried out on human panellists to study the skin irritation and skin sensitization in response of testing samples. The test product is applied on the skin of panellists. They are repeatedly exposed to the test samples over a period of time

Specific group of panellists is recruited with particular gender, age, skin type, in order reflect a pool of target consumers, which advances the reliability of the results. Observation and evaluation are carried out by a trained expert and dermatologist after the test product is removed. Scores are then given to reflect the level of irritation/sensitization response.

Our strength:

  • A team of experienced and professional experts
  • Huge database of volunteers with wide range of age and skin type
  • State-of-the-art testing facility

Full pdf document SCOOP Toxicology and Efficacy of Cosmetics Patch testing EN17

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t: +852 2609 9611