Black Hair Dye Shampoo, Semi-Permanent Hair Color Shampoo for Women and Men, 3 in 1, Grey Coverage 400ml/ 13.5 fl.oz

I’ve been buying this Semi-Permanent Black Hair Dye Shampoo every year because it truly works. It is one of the easiest ways to get my hair fully black without the mess of traditional kits. The Pros: Full Coverage: It never leaves patches; my hair comes out a deep, consistent black every single time. Convenience: Using it like a regular shampoo makes the process much faster and less intimidating. Longevity: For a semi-permanent product, the color holds up very well over time. The One Downside: The only annoying part is that it tints skin very easily. If it touches your forehead or scalp, it can be quite stubborn to wash off. I usually have to use a bit of alcohol and scrub fairly hard to remove the staining from my skin, so I definitely recommend using a barrier cream (like Vaseline) around your hairline before starting! High-quality color that lasts, just be careful with the application to save yourself the scrubbing later.

I've been using COSMTEK Black Hair Dye Shampoo for many months now, and I'm really happy with the results. My hair is now completely black, and the color has stayed true even after multiple washes. I also like that the shampoo is ammonia-free and contains herbal ingredients, so it's gentle on my hair and scalp. Overall, I highly recommend COSMTEK Black Hair Dye Shampoo to anyone looking for a natural and effective way to cover gray hair. Here are some of the things I like about this product: It's easy to use. Just apply it like regular shampoo and leave it on for 15-20 minutes. It covers gray hair completely. I have a lot of gray hair, and this shampoo covered it all without any streaks or unevenness. The color lasts. I've been using the shampoo for about a month now, and the color has stayed true even after multiple washes. It's ammonia-free and contains herbal ingredients. This means it's gentle on my hair and scalp. One thing to keep in mind is that this dye penetrates all layers of hair, so it is not washable or lightable. This means that if you decide you don't want black hair, you will need to wait while your hair will grow up. You can not even bleach to remove the color. Another thing to keep in mind is that this dye is very strong and can stain skin and surfaces. It is important to wear gloves when applying the shampoo and to wash your hands and any surfaces that come into contact with the dye immediately. Overall, I'm very happy with COSMTEK Black Hair Dye Shampoo. It's a great product for covering gray hair, and I highly recommend it.

I usually rely on traditional, heavy-duty nourishing cream box dyes to handle my stubborn grays, but the whole mixing, sectioning, and waiting process can be exhausting. I picked up this Black Hair Dye Shampoo looking for a quicker, lower-maintenance alternative for touch-ups, and it genuinely surprised me. Here is how it actually performs: Ease of Use: This is where the product completely shines. Pumping it out and working it through your hair like a regular shampoo is infinitely faster than precisely painting on a traditional dye. It cuts the prep and application time down drastically. Coverage: For a semi-permanent shampoo, the coverage is remarkably solid. It darkened my lighter strands very effectively and blended them into a natural-looking black finish, rather than an inky, flat color. The Scent: Because it utilizes herbal ingredients, it lacks that overpowering, eye-watering ammonia smell that usually lingers in the bathroom after coloring your hair. The Drawbacks: Just because it says 'shampoo' doesn't mean it won't stain like a traditional dye. You absolutely still need to wear gloves (which it thankfully includes), and you have to be very careful not to let the dark lather splatter onto your shower tiles or grout, as it will leave stains if you don't rinse it away immediately. Verdict: If you need a fast, low-effort way to cover grays without the hassle of a full chemical processing session, this is a highly convenient option. Just treat it with the same caution regarding stains as you would any other dye!

Bought this for my husband (twice now), and he’s seriously into it. He wanted something quick and easy to cover his grays without the whole dye kit drama, and this shampoo does the trick perfectly. It’s super simple to use: rub it in like regular shampoo, wait about 15–20 minutes, rinse, and boom, black hair. It covers grays well and looks natural, not patchy or fake. The scent is light and fades fast, and his hair feels soft afterward, not dry or stiff. The color lasts a couple of weeks before fading to a dark brown, so we just reapply when needed. Overall, he loves it, and I love that he’s happy with how it looks. Keeping this one stocked.

For my man 👨 🤭

I've been using this for almost three years. It started out great. You had to take extra care to keep the "nozzle" clean and it would drop awhile after use, but aside from that the product was great. I just kept it in the sink for a few hours. It had the consistency of snot when mixed and really clig to the hair. I purchased a bottle in August 2025 and it was watery thin and runs everywhere. You could not apply this stuff at all. Shook it and tried everything. Purchased a different bottle in December 2025 and it is the same! The lot numbers are only on the outer box that you throw away so I can't tell if it's the same batch. This is definitely the last bottle I'll buy.

I received it yesterday. I let it in for 15 minutes per the instructions and didn't use much. I found it to be more convenient than "just for men" and less messy. Also, because it's applied as a shampoo, it didn't dirty or stain my sink lol Just for men has to be mixed which is annoying. I used it for my beard as well. It left some spots but i have a more natural look and perhaps will have to apply it better next time. I love this product and will prob start using this moving forward. It's also way cheaper!

Good

I am a real customer, and this is a real review. This product is absolutely horrible. It is not a foam or a gel. It basically just black liquid/water. Try dying your hair with water, it creates a big mess everywhere. If you do not believe me, you can buy this product and see for yourself

very good

Colour is good but I stopped it due to hair fall.

Caused a severe allergy and skin rash around my ears and back of the neck. Had to use strong lotions and allergy medication. Maybe its not the same for everyone, but becarful and test it on your skin before applying a large quantity