What is the intended user age range for the REVIAN RED system? Team REVIAN October 28, 2020 18:50 Updated REVIAN users must be at least 18 years old. There is no upper age limit. Related articles My hair is thinner and finer than it used to be, will the REVIAN RED system make my hair thicker? Do I need to use the REVIAN RED system for life? Comments 0 comments Please sign in to leave a comment.
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