ARGATIN Professional Naturalis Developer 6% 20 Volume with Pro Vitamin B5 helps you achieve your desired shade color and lasts longer. Argatin Professional Naturalis Developer can be used with any other brand with 1:1 with the cream color. It is an advanced conditioning and spa formula with a special hair-protecting factor that does not damage the hair and makes it soft and silky.Argatin Professional Naturalis Developer Colours with Care, delivering radiant hair colour and luxurious spa-like pampering, for the ammonia-free hair colour routine.The Naturalis hair color is infused with the formula of Pro Vitamin B5 with the goodness of Black Seed Oil & Argan Oil for smooth and shiny hair, your Ammonia-free hair color transformation is sure to be elevated to a spa-like experience.