Because ALL our dyes are natural, they are gradually absorbed into the feathers over time. The maximum and perfect color saturation of the feathers is obtained approximately two weeks after the end of the moulting period. 

Our colorants have no adverse effect on the liver and do not color the fat and do not affect the skin of the birds.

RAINBOW YELLOW liquid version:

Liquid version of the well-known yellow natural colorant from the RAINBOW line of UNICA, which has been used for years as one of the indispensable products in the breeding of yellow lipochrome species, in particular Siskin and Canary.

The new liquid formulation offers the possibility for an even more versatile and "smart" use, in fact it can be used in addition to the administration in drinking water in the preparation of fresh ration or wetting pastes, extrusions or dry pastes.

It is also possible to practice nest coloring, the total natural composition does not burden the liver, kidneys and systems. For this use, it must be administered in water before laying the eggs, exactly from about a week (during the construction of the nest), in the ratio of 5 ml / 100 ml of water.

Use without nest coloring : in the ratio of 20 ml / liter, at least for three weeks.