BEST NATURAL MASK from Happy Bird is a water-soluble pigmenting agent for a natural coloring of the goldfinch mask. Composed of concentrate of Red Xanthophylls and Yellow Xanthophylls.

Instructions for use: mix from 10 ml to 15 ml in 1 liter of drinking water replacing the water daily, or in 1 kg of egg food per suit. The administration must be carried out from the end of weaning for the whole period of the moult.

Packaging: 250 ml bottle