Genotek is a health care centre specialising in personal genetic tests which help people take, informed step toward self-knowledge. I was asked to develop identity and packaging based on existing logotype. The aim was to collect more than ten different tests in one system. The solution was to make all visual elements simple but flexible which could mark all range of products. Seeking inspiration from the DNA image that uses A, T, C, G letters for marking nucleobases the alphabet were chosen as the core element of identity.