Hair Darkening Shampoo Bar, Shouwu Blackening Shampoo Soap for Gray Hair, All nature Organic (2 Pack Polygonum Multiflorum for Grey Hair)

I love the way this lathers! Wow! Slim to NO hair in drain when wetting, lathering or rinsing my hair since using this shampoo Incredible! Not a big difference in darkening hair and diminishing grey hair but it's been less than a month so we'll see! Highly recommend for women who dread washing their hair for fear of shedding. Give it a go! It's awesome!

At first I thought the smell was a little strong. However, after I used it, it smells great. It must've been because it was in its packaging for a while during shipping. Anyhow, leaves my hair silky and shiny even without using conditioner.

I researched the product discovered that to darken hair you wash rinse then wash again a leave it massaged into scalp for 3-5 mins. If you want it to darken it will take at least 3 months of use. It lathers fantastic- I have thick long hair and it worked great- I will add to review after 3 months. My scalp does not itch or feel dry- hair feels healthy after one time of using it. The smell dissipates quickly from hair. ( I was not fond of the smell) one thing it was supposed to be two but only one bar came. 3 months and no real change in color. Shampoo lather well but I have developed an itchy scalp smell once I have several allergies I have decided to discontinue using it.

Made my hair drier. It cleaned well and my grey hair started darkening in the 3 weeks I used.

The bar of shampoo leaves your hair nice and clean but it does not cover gray. Your gray just turns a nasty gunmetal gray. I won't buy it again.

Darkening my roots, filling in bald spots and just an overall five star product. I'll never go back to any other shampoo. See photo. That's only two weeks in! Bottom is before, top is after.

I never thought I would use bar soap on my hair. This stuff is amazing. My hair has new life. My husband was a die hard for his brand of 20 years. He tried it after I threatened divorce. He loves it too. I am blonde. There is no discoloration. My hair is super shiny. Love it

I like the idea of this. I love shampoo bars and I was looking for something for my thin and fragile hair and possible hair regrowth, however this one fell short. Doesn’t have a ton of lather or smell and caused some irritation on the back of my neck in the hair line even with thorough rinsing. It did clean well and I could go several days without another wash but I never saw any new growth and still had a lot of fall out. I love that it came in a tin and have reused it with a different shampoo bar that just came in a box (that works better too).