To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. It also analyses reviews to verify trustworthiness.
love this shampoo. My hairdressers use this, so in an attempt to get the same results as them I'm now using this. A little goes a long way, I have short hair and only need a pea size amount. Smells lovely, lathers well, cleans my hair gently. Really good value as you only need a tiny amount.