I am so happy with this product, it makes your hair squeaky clean. . Amazingly, I have also converted my husband (who does not like change) to this product and the related conditioner. This product is also so reasonably priced for how long it is lasting, purchased early 2021.
Only comment is that as they are both black. I have developed a system for recognition. Shampoo is a circle (So shampoo = C (circle)) and Conditioner is a square (So conditioner = S (square)). So step 1 shampooing use C and Step 2 use S. OK, bit complex. Maybe they just could change the colour of one.
So I am extremely keen to promote this product as it also stops us using the plastic shampoo products.