Phytoapaisant Soothing Treatment Shampoo

I came across this product by complete chance a couple of weeks ago. I had never heard of this brand before, but a shop assistant at John Lewis told me that they have a lot of customers who swear...

2 stars for not hurting my scalp/hair, but it didn't help my scalp itchiness or scalp acne (how do i have both??). also, packaging is TERRIBLE; the bottle is metal so you can't squeeze it, which...