Question

b)What are the side effects of hair
colouring?​

Answer 1

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Permanent dyes can cause itching, skin irritation, redness, or swelling on your scalp or other sensitive areas like your face and neck.

...........★★★★★..............No hair color in this world doesn't have a side effect(if you consider henna leaves( Lawsonia inermis ) then its probably the only thing which doesn't have a side effect). Most common form of chemicals used in hair coloring are Hydrogen peroxide, Ammonia and bleach.

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Answer 2

hello ❗mate

here is your answer ⬇⬇⬇⬇⬇

Some common side effects of hair dyeing[1] include skin redness, scaling, itchiness, split ends, hair dryness, lusterless hair, excessive hair loss and graying. If you are going for permanent hair dyeing then it can contain Para-phenylenediamine (PPD) that cause allergic reactions like eczema of face and upper trunk

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