GR-7 Professional is a company specializing in natural treatments for grey hair and hair loss. Their flagship product, GR-7 No More Grey Hair, utilizes a blend of herbal extracts and scientific advancements to address the common concern of greying hair. The company aims to provide effective solutions that enhance the overall health and vitality of hair, catering to individuals seeking to manage the effects of aging or hair loss. In addition to their primary product, GR-7 Professional offers comprehensive treatment bundles that include nourishing shampoos and dietary supplements designed to prevent premature greying and promote healthy hair growth. Targeting consumers who are looking for reliable and natural alternatives in hair care, the company focuses on delivering science-backed treatments that support hair rejuvenation and maintenance.
Reviewers generally express satisfaction with GR-7 Professional's hair products, noting significant improvements in grey hair coverage and overall effectiveness. Many customers highlight the product's ability to deliver noticeable results after consistent use, often praising its natural look and feel.
However, there are critical concerns regarding customer service and product delivery, with some consumers reporting unprofessional interactions and issues with receiving their orders. A few users mention that the application process could be improved, citing the lack of a dropper or pointed tip as inconvenient. Despite these complaints, the majority of feedback reflects a positive experience with the product's performance. Overall, GR-7 Professional garners a favorable sentiment, particularly for its effectiveness in addressing grey hair.
Summary generated with AI from recent reviews
Each source counts by its number of reviews. Only reviews written by people are scored.
| Source | Rating | Reviews | Weight | 6-mo | Fake risk |
|---|---|---|---|---|---|
Trustpilot Imported Trustpilot reviews | 4.1 | 197 | 100% | -0.3 | ● Low |
Monthly average rating from reviews written by people · latest review Aug 2025.
| Month | Average | Reviews |
|---|---|---|
| Sep 24 | 1.0 | 1 |
| Oct 24 | — | 0 |
| Nov 24 | 3.5 | 4 |
| Dec 24 | 1.5 | 2 |
| Jan 25 | 5.0 | 1 |
| Feb 25 | 5.0 | 1 |
| Mar 25 | 2.4 | 5 |
| Apr 25 | 4.8 | 8 |
| May 25 | 4.2 | 9 |
| Jun 25 | 4.3 | 4 |
| Jul 25 | 5.0 | 2 |
| Aug 25 | 2.5 | 4 |
Share of positive (4–5★) and negative (1–2★) reviews mentioning each topic · based on the 197 most recent reviews.
“But you need to be patient and commited to it”
“I ordered a product which I never received”
Same method for every company: overall rating, legitimacy checks, the average rating of reviews mentioning each area and the 6-month trend · Beauty & Well-being.
| Company | Overall | Legit | Quality | Value | Delivery | Trend | Reviews |
|---|---|---|---|---|---|---|---|
 | 4.1 out of 5 (good) | 100 out of 100 | 4.1 out of 5 (good) | 3.3 out of 5 (fair) | 3.7 out of 5 (good) | — | 197 |
| 4.8 out of 5 (good) | 100 out of 100 | — | — | — | −2% | 1,000 | |
| 4.8 out of 5 (good) | 100 out of 100 | 4.8 out of 5 (good) | 3.8 out of 5 (good) | — | +1% | 381 | |
| 4.6 out of 5 (good) | 100 out of 100 | — | — | — | — | 145 | |
| 4.9 out of 5 (good) | 100 out of 100 | 4.7 out of 5 (good) | 5.0 out of 5 (good) | 5.0 out of 5 (good) | — | 145 |
Bottom line: GR-7 Professional is #5 of 5 on overall rating in this group. On value, Beauty Works scores higher (5.0 vs 3.3).
197 reviews of GR-7 Professional. Filter by what matters to you.
I had an effect after just a week of applying morning and before bed. Also only washing the hair every third day. The reason why I can't give it 5 stars is that there is easy way to apply the liquid in the scalp, so i had to try differens techniques. There was no recommended way of applying the liquid.
This is the second review after more than one year of use. In my case the product does work although the color varies across the hair and my hair is blonder than before. I only use the product two times a week or less. For me It is far better than coloring and the hair looks natural, healthier and shinier. My hairdresser is amazed by the result. After experiencing with myself and reading gR7 directions I recommend everyone under treatment doing the following: 1. Do not use hair products with silicone in your scalp when you are under GR7 treatment because these products are preventing the GR7 product to be absorbed. Read the composition of your shampoo and any other hair conditioner and get rid of all the siliconed hair products. 2. Use a syringe to apply GR7, say one very thin for example content 1 ml. Shake well the GR7 bottle and fill 2/3 of the cap. Then charge the syringe (without the spike of course) carefully with the fluid and distribute it into the scalp. Try Not to put the liquid into the hair because it is a waste. Direct the fluid to the scalp slowly like painting small dots across your head. Massage the scalp to cover all the head. Charge the 1 ml syringe three times. You will be using 3 ml in total which is enough quantity for one use. You wouldn’t be wasting the product at all. 3. When you apply the product do not wash or wet your hair for, at least, 12 hours to allow the product to work properly. 4. Do not apply the product on wet hair because it will not work properly. Your Hair has to be dry and clean. 5. Clean carefully your hands before and after using GR7 and do not let product into your eyes because it is very strong and stingy, be thorough and careful. I hope to help everybody with my experience.
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Good product, but will not get hair 100% dark. It will hide some grey, but will look faded. I followed the directions to a T , and I'm still trying to get to 100% with what I have left after a month of use. I wish it would work better, because it's simple to use. Just not sure if it will or not
I found this product from a Youtube video by Bryan Johnson on gray hair. My mom has jet black hair, but finally started to grow some grays. Pros: - Fast Shipping. I live in the USA and it shipped from their Poland warehouse fairly fast. - Instructions are clear. Do not wet your hair for first 7 days, and continue with regular routine after. This was the hardest part for someone who is used to washing at least 2x/week or every other day. - So far, the grays have started to reverse on her head! I was pleasantly surprised at how effective it is. Cons: - The formula has an odd almost vinegar smell, so you would need to maybe mask it with something else like leave-in-conditioner at the tips of your hair - BOTTLE DESIGN. (This is the reason for the 4-stars insteads of 5). The product spills quite a bit due to the bottle not having some sort of nozzle or application to put directly onto the scalp as required, which results in losing a lot of liquid when you try to use it. For the cost of the product, I think the company should invest in better bottle applicators so customers benefit from the entire product without losing liquid volume. Overall: would recommend to give it a try. I bought four (4) bottles and looking forward to seeing how my mom's hair turns out once she's done with all of them :)
I think I might see a difference, but need to continue to be sure
After two weeks you see a change. But I needed rather 3- 4 weeks (two bottles) to have all the grey disappeared. For the rest, it works amazingly
I only purchased one bottle per Bryan Johnson’s recommendation. GR-7 seemed to have worked modestly in the area where I applied the product. It has been one month. I decided to buy two more bottles and see how it eventually turn out to be.
something that might actually work
At first few days of using I thought my hair was breaking and falling off and then after which I continued I saw improvement in the thickness of my hair and also my grey hair has become better but still not turned completely dark .,almost I finished my first bottle planning to order again and hopefully to see one hundred percent resukt ..it helps it does help
It works. Most of my grey hair is gone. It took a while though for the hair to revert back to the original colour. It could be becasue I was using too little and it required more liquid. After 10 days, I still had half bottle full. Then I decided to use more liquid and applied it only to the sides of the hair, the area with more grey hair. After 10 days, the hair started to revert colour. Highly recommended
I'm on day 15. So far I see a very slow shift in my mostly gray hair to a light orange shade. I look forward to continuing this treatment with the next bottle until the hair darkens closer to my original dark brown color, and hopefully go into maintenance mode after. Putting it on is messy and it tarnished my silver rings. Hope they can figure out a better way to pour out the liquid.
Ipak 4 zvjezdice, na početku sam dala 5 zvjezdica jer nakon što 3 tjedan ovo koristite redovito i kao je na uputama, vama će sigurno vratiti se boja, ostat će pokoja sijeda no rezultat je impresivan. Sad kad sam prestala koristiti vidim da mi ponovo raste sijeda :( tužna sam, očekivala sam ipak malo dužu promjenu, ovako izgleda da djeluje kao neka vrsta farbe. Iako sam razočarana što nisam dobila ono što sam mislila da ću dobiti, kupit ću ponovo i tretirati opet. :)
GR-7 Professional is a company specializing in natural treatments for grey hair and hair loss. Their flagship product, GR-7 No More Grey Hair, utilizes a blend of herbal extracts and scientific advancements to address the common concern of greying hair. The company aims to provide effective solutions that enhance the overall health and vitality of hair, catering to individuals seeking to manage the effects of aging or hair loss. In addition to their primary product, GR-7 Professional offers comprehensive treatment bundles that include nourishing shampoos and dietary supplements designed to prevent premature greying and promote healthy hair growth. Targeting consumers who are looking for reliable and natural alternatives in hair care, the company focuses on delivering science-backed treatments that support hair rejuvenation and maintenance.
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