Description
Cover your grey hair in five minutes with the Just For Men H45 hair colour in dark brown. This men’s hair colour targets grey hair and keeps the shades of your natural colour. The result stays subtle and natural, with no flat, painted-on effect.
Its patented technology targets grey hair and makes hair look thicker and fuller to the eye. The formula is applied like a shampoo and does not run. It colours in five minutes, much faster than a standard hair colour. The colour lasts up to six weeks, until the grey hair grows back.
The box contains enough for one full colouring. Once the mixture is prepared it cannot be kept: use it all in one go. Do an allergy test 48 hours before each application, as the manufacturer requires, and wear gloves. This men’s colour for white hair suits anyone who wants a quick routine, to be repeated every three to six weeks.
Depending on your starting colour
Grey hairA natural dark brown
Salt and pepperThe grey fades, the shades stay
5 minutes’ application
Lasts up to 6 weeks
No flat, painted-on effect
Our review of this Just For Men H45 hair colour
Review written by the Aura Capillaire team · Updated on 19 September 2026
We read the feedback from buyers of this Just For Men H45 hair colour to pick out what comes up most often, good and not so good.
Strong points
- A colour ready in five minutes, with no long wait, a time-saver praised by many men.
- A natural result, which keeps the shades of the original colour.
- A formula that does not run: it is applied like a shampoo.
- A colour that lasts up to six weeks, until the grey hair grows back.
Things to know
- A risk of skin reaction: users report redness, spots or itching. Do the allergy test 48 hours before each application, and rinse at the first sign of a reaction.
- A shade that can come out darker: on some hair, the dark brown leans towards brown. If in doubt, choose a lighter shade and watch the application time.
Where we lean: for a man who wants to cover his grey hair quickly with a natural result, this is a simple, well-known hair colour. If you prefer an ammonia-free formula, the Men Perfect 70 by Schwarzkopf below is another option. For other shades, browse our men’s and beard colour.

Just For Men H45, Just For Men colour gel, Men Perfect 70 or Salvathor Duran colour shampoo?
Men’s hair colour comes from several brands. Here is how this Just For Men H45 hair colour compares with the three other most-requested colours.
| Hair colour | Form | Shade | Ideal for |
|---|---|---|---|
| Just For Men H45 Just For Men · this hair colour |
Colour shampoo | Dark brown | 5-minute application |
| Colour gel Just For Men |
Gel | Dark brown | Covering white hair |
| Men Perfect 70 Schwarzkopf |
Hair colour | Brown | Ammonia-free |
| Colour shampoo Salvathor Duran |
250 ml shampoo | Dark brown | 20 applications |
The Just For Men dark brown colour gel stays within the same brand, in a gel texture. It covers white hair and restores the original colour. The H45 colour shampoo version remains the easiest to spread.
The Schwarzkopf Men Perfect 70 hair colour offers an ammonia-free brown, designed for men. It comes from a major hair colour brand. Just For Men focuses on a five-minute application and a result that keeps the shades.
The Salvathor Duran dark brown colour shampoo comes in a 250 ml bottle, for around twenty applications. It colours gradually, wash after wash. Just For Men gives a result in a single application.
Your questions about this Just For Men H45 hair colour
Just For Men and hair allergies?
Skin reactions are possible, sometimes after several uses. Do the allergy test 48 hours before each colouring. At the slightest redness, rinse and stop.
How long does men’s hair colour last?
The brand states up to six weeks, until regrowth. Many men redo it every three to six weeks. Application takes only five minutes.
What is the difference between Just For Men H45 and the Just For Men colour gel?
The H45 is applied like a shampoo and colours in five minutes. The colour gel has a thicker texture. Both cover white hair in dark brown.
Find more men’s hair colours in our men’s and beard colour.
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