Perming 04

Perm lotion adds this chemical to the hair.

• oxygen

• hydrogen

• sodium bromate

Neutraliser lotion adds this chemical to the hair.

• oxygen

• hydrogen

• ammonia thioglycolate

This perm lotion is suitable for very strong hair or virgin hair.

• acid lotion

• alkaline lotion

This perm lotion is suitable for tinted hair .

• acid lotion

• alkaline lotion

This is during the perming process.

• oxidation

• neutralising

• reduction

This is during the neutralising process.

• oxidation

• di sulphide bonds are broken

• reduction

During the perming process, which bonds are broken down, allowing the hair to soften and mould?

(a)