Five HYPONIC products have acquired DermaTest 5 star Excellent Certificates. HYPONIC Hypoallergenic Shampoo , HYPONIC No Sting Hinoki Cypress Ear Cleaner , HYPONIC Hinoki Cypress Detangling Mist , HYPONIC Gentle Cleansing Powder Wash , HYPONIC Chitosan Deodoriser (aqua scent). Dermatest® is an independent scientific institute founded in 1978 by a German dermatologist. For more information click here Discover instructional videos and comprehensive guides on product usage right here! How to videos