I knew a guy named Billy once. Not William, just straight up Billy. His parents smoked a lot of pot.
This shampoo is cool but also reminded me of Billy, who is dead but was a cool guy. 4 stars for muthafuckin Billy.
Smells and feels great
I'm liking the smell of this shampoo and it leaves my scalp and hair feeling great. Still need more time to see if it strengthens the hair and helps it grow but so far so good.
I have add this product to my essential list. It leave hair clean and full. I can't comment on the product's claim to "fight hair loss from the root" nor whether it changes the likelihood of "male pattern baldness", but it does leave hair feeling clean and full. I use this product in an alternating regime with one other shampoo (also available via Birchbox). Overall, top rate shampoo I have tried and now include in my routine "essential" products order. The only down side is that it is not very thick out of the bottle, so you end up pouring out more than is actually necessary.
I will preface that I do have buzzed hair, but am sent shampoos from time to time. If they need arose, I would use this product regularly. The combination of lather and fragrance are a great mix, with lasting effects.
While I can't say if this has done anything to strengthen my hair, I do like the scent, which is energizing, and its wash-ability.