STRIKE4
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      Does hair colored using STRIKE4 need to cool before rinsing?

      Yes, hair needs to feel cool to the touch, usually 2-3 minutes, before rinsing.

      Yes, hair needs to feel cool to the touch, usually 2-3 minutes, before rinsing to ensure the end of
      color processing and maximize color longevity. Hair is safe to remain in STRIKE4 paper during
      cool down time without risk of damage or over-deposit.