I give it 5 stars because it meets all my requirements. It's an excellent quality product. Since I started using it, my hair is stronger. I suffered from hair loss and weakness, and since it was recommended to me, I've been using it, and honestly, my hair has improved 100%. I'd like to send photos, but I've already run out of the product, and I haven't found another one yet. I've been to the store several times, but I haven't found it. I wish this shampoo brand were more widely advertised and marketed because it's worth it in every way, and its scent is fresh and long-lasting.