NJD Cosmetics (formerly Sipa Laboratories) was the first to develop and to distribute in Europe the henna powder and its colouring capacities through a line of hair products based on natural henna and plant extracts whose benefits for hair are well recognized.

NJD Cosmetics uses three plants with different tinctorial properties: natural henna, neutral henna and black henna to which other plants are added depending on the desired shades, chamomile leaves, rhapontic, rosemary leaves, etc.