Our Service

24 hours Occlusive Human Patch Test


The test materials are intended to observe the skin irritation of adult when apply to the human skin for 24 hours single occlusive


Healthy adult without skin abnormality over 50 volunteers

Evaluation method

Data collection and evaluating for stingers selection

Judgement & Classification

Under Japanese standard by the stinging score

“Help our customers provide safe products”

Patch Testing We conduct cosmetic safety evaluation of cosmetic raw materials and products in conformance with guidelines (standard of cosmetic)
to include 24-hour closed obstruction patch tests and open patch tests for safety assessment of cosmetics.