Rosie Baylis- Strover on Instagram: "Why you have that annoying band of warmth at your roots So you have your hair done, and it looks fine in the salon, but after a few weeks when your hair starts growing and your natural, ash-based colour grows through... all of a sudden your colour looks REALLY warm. There’s a reason for this- When using a permanent colour for full grey coverage- the peroxide used will shift your natural colour a little bit. Whenever we lift the hair- it will ALWAYS go…
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