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.
I bought this because I haven't seen the 120 tablet size bottle in the stores. This arrived promptly and well packaged. I have noticed my hair is a lot shinier but I can't say if it's from the pills or my shampoo.