Just for Men Control GX + THK Thickening Shampoo with Grey Reduction, Shampoo for Thinning Hair with Alpha Keratin, Thickens Hair Up to 20%, Works with Every Hair Texture, 4 oz

I'm 43 and have some light greying, not even close to going full grey, but enough that it is noticeable if your talking to me. I used the regular just for men grey reduction shampoo for the first time about 4 months ago because the grey in my sideburns was getting more noticeable and it bugged me - not sure why my sideburns decided to go almost full on grey while the rest of my hair had only scattered grey - but Ebenezer scrooge side burns just wasn't working. The original formal worked just enough that I bought it a second time. Decided to try this one out after the last bottle of the original formal ran out and it is much better: my hair seems to absorb the dye better, it definitely works better on thinner portions of hair like sideburns and hair cut with a clipper, and it does actually help to make my hair look thicker. Not sure if this is good for someone who is mostly greying but definitely is a decent option for anyone like me who has just started to get greys. Just note that it does not fully get rid of all of your greys but makes them less noticeable and blends them in much better. I use this about 2 times a week, if you used it more you might see more extreme results. If you don't want to use hair dye then this is a good option and it is better than the regular grey reduction by Just for Men. Worth the extra $$.

I picked this up to help tone down the overwhelming gray I kept seeing in the mirror—and it’s been a smart, low-effort solution. Compared to full-on hair dye, this is way more convenient. You just shampoo your hair like normal, and after a few uses, the gray starts to soften.I typically use it twice a week, which works well—though I have noticed that the darkening effect seems to weaken a bit the longer the bottle sits on the shelf. Still, it blends the grays naturally, doesn’t make my hair look “dyed,” and takes just a few minutes in the shower. For the price and ease of use, I’m definitely happy with it.

Works okay

Excelente producto

This product darkens the hair as advertised; however, they add perfume to it which won't go away even after continued washing. Not clear who's brilliant idea it was to add perfume to a men's hair product but it definitely deters me from using it as much as I'd like.

It work less grey hair.

Careful. This product works better than the Control GX. What I mean as being careful is that don’t let the product stay on your skin longer than 5 minutes. It will stain your skin. I was able to reduce my grays significantly in 3 days. Compared to others that I’ve tried, where I have to let it stay for about 10 minutes. Yes, it can stain your nails, obviously. It’s the same composition of hair. Recommend buffing your nails or wear gloves prior. Not sure about thickening the hair as I don’t have thin hair. I didn’t get any skin reactions nor itching.

Will make you lose hair rapidly.