neutralizing shampoo after bleaching hair

Do You Need Neutralizing Shampoo After Bleaching Hair?

How does bleach swell the upper layer of your hair to allow the developer to pass through and oxidize melanin in the inner hair cortex? It does so by raising the pH of your hair to 8 or 9. But this pH has back-pedal to the normal. Otherwise, your hair strands may sustain damage. So, […]

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