Naturtint MEN 4N Natural Chestnut Permanent Hair Colour Gel Amino Acids Tyrosine is a non-essential amino

Tyrosine is a non-essential amino acid and can be found in dairy products

Inosine is produced in the human body

Andrographolide

Taurine spray contains the same natural ingredient

Boron (Latin borium) is a trace element that occurs in the body in small amounts

Naturtint MEN 4N Natural Chestnut Permanent Hair Colour Gel Amino Acids Tyrosine is a non-essential aminoSpecifically developed for men and suitable for the hair, beard and moustache. Naturtint Men ammonia free hair colour helps you to cover 100% of grey and revitalise your natural shade, without sacrificing the condition of your hair. Quick & easy non drip gel formula, complete with applicator brush.