Is hair dye harmful to health?

Hair dyes are usually toxic. Hair dyes usually contain a variety of chemicals, including a certain degree of low toxicity. Usually, dyeing your hair occasionally will not affect your health. Avoiding frequent hair dyeing for a long time may lead to toxic substances entering the body, endangering health and reducing adverse reactions and harm. Cleaning and nursing the scalp at ordinary times is helpful to prevent hair follicle inflammation.

Toxic chemicals in hair dyes need to be excreted through liver and kidney metabolism after entering the human body, so long-term absorption will inevitably cause damage to liver and kidney functions. It will also affect the bone marrow and cause aplastic anemia. A large amount of acid, alkali and other substances in hair dye will destroy the protein chain and amino acid of hair, so the dyed hair will become dry and lose luster and elasticity.