Just For Men: The Ultimate Men's Hair Dye Guide 2025

The #1 men's hair dye brand worldwide. Discover specialized formulas for hair and beard that deliver natural results in just 5 minutes.

Table of Contents

  1. Mustache & Beard - Beard Dyes
  2. Shampoo-In Color - Permanent Hair Dye
  3. Touch of Gray - Gradual Coverage
  4. How to Choose Your Shade
  5. Allergy Test - MANDATORY
  6. Application Guide
  7. Frequently Asked Questions
IMPORTANT: ALLERGY TEST BEFORE EVERY USE

Just For Men products are permanent hair dyes. Like all hair dyes, they require an allergy test 48 hours before every use - even if you have used the product before without problems.

Why Just For Men?

Just For Men has been the leading hair dye brand exclusively for men for nearly 40 years. With technology that targets only gray hair and formulas enriched with nourishing ingredients, it delivers results that no women's dye can achieve.

The Advantages Just 5 minutes application, ammonia-free, with keratin and biotin for healthy hair. Up to 3 applications per box!

Part 1: Mustache & Beard - The Ultimate Beard Solution

Just For Men Mustache & Beard dyes are the #1 choice worldwide for covering gray in beards. With the innovative brush-in gel formula and smart brush applicator, you can precisely target the areas you want to cover.

Beard Dyes - All Shades

Just For Men M-55 Black Beard Dye
Just For Men
M-55 Black
For very dark beards. Intense black coverage. #1 best seller!
View Product
Just For Men M-45 Dark Brown Beard Dye
Just For Men
M-45 Dark Brown
The most popular shade. Natural results for brown beards.
View Product
Just For Men M-35 Medium Brown Beard Dye
Just For Men
M-35 Medium Brown
Ideal for brown beards. Subtle and natural coverage.
View Product
Just For Men M-25 Light Brown Beard Dye
Just For Men
M-25 Light Brown
For light-colored beards. Natural golden highlights.
View Product
View All Beard Dyes

Part 2: Shampoo-In Color - Permanent Hair Dye

Good to know Despite the name "Shampoo-In", this is a permanent dye - the color lasts 4-8 weeks until grays grow back. But the application is as easy as shampooing!

Just For Men Shampoo-In Color eliminates 100% of grays in just 5 minutes! Simply apply, wait 5 minutes, and rinse.

Shampoo-In Color - All Shades

Just For Men H-55 Real Black Shampoo-In Color
Just For Men
H-55 Real Black
For black hair. 100% gray coverage in 5 minutes.
View Product
Just For Men H-45 Dark Brown Shampoo-In Color
Just For Men
H-45 Dark Brown
The most popular shade! Best seller for natural results.
View Product
Just For Men H-35 Medium Brown Shampoo-In Color
Just For Men
H-35 Medium Brown
For brown hair. Perfect color balance.
View Product
Just For Men H-30 Light-Medium Brown Shampoo-In Color
Just For Men
H-30 Light-Medium Brown
In-between shade for precise matching with your natural color.
View Product
Just For Men H-25 Light Brown Shampoo-In Color
Just For Men
H-25 Light Brown
For light brown hair. Subtle coverage.
View Product
Just For Men H-15 Dark Blond Shampoo-In Color
Just For Men
H-15 Dark Blond
For dark blond hair. Natural golden highlights.
View Product
View All Shampoo-In Colors

Part 3: Touch of Gray - The Subtle Solution

Just For Men Touch of Gray gradually reduces grays instead of eliminating them completely. Ideal for those who want to maintain a natural "salt & pepper" look that shows maturity and experience.

Touch of Gray - Gradual Gray Reduction

Just For Men Touch of Gray T-55 Black
Just For Men
Touch of Gray T-55 Black
Gradual gray reduction for natural "salt & pepper" results. You control how much gray you keep!
View Product

How to Choose the Right Shade

Choosing the right shade is key to natural results. Follow these guidelines:

Natural Color For Beard For Hair
Black M-55 Black H-55 Real Black
Dark Brown M-45 Dark Brown H-45 Dark Brown
Medium Brown M-35 Medium Brown H-35 Medium Brown
Light Brown M-25 Light Brown H-25/H-30 Light Brown
Dark Blond M-25 Light Brown H-15 Dark Blond
Golden Rule When in doubt, choose one shade lighter. You can always apply a second time for darker results. For beards, you often need one tone lighter than your hair!

Allergy Test - How To Do It Properly

Allergy Test Instructions (48 hours before application)

The allergy test should be performed before every use, even if you have used the product before. Body chemistry changes over time.

1
Clean: Wash a coin-sized area on the inside of your elbow with mild soap and pat dry
2
Mix: Combine a small amount of Color Base + Color Developer in the mixing tray
3
Apply: Spread the mixture on the area with a cotton swab
4
Wait: Let dry. Do not cover, wash, or shower for 48 hours
5
Check: If there is no reaction (redness, itching, irritation) after 48 hours, you can proceed with application
Important If you notice any reaction during the 48 hours, do not use the product and rinse the area immediately.

Application Guide

Mustache & Beard Application

1
Do a patch test 48 hours before (see instructions above)
2
Mix Base Color + Developer in the special tray
3
Apply with the brush starting from the grayest areas
4
Leave for 5 minutes
5
Rinse thoroughly and shampoo

Shampoo-In Color Application

1
Wear the gloves included in the package
2
Pour the color base into the bottle with the activator and shake
3
Apply to wet hair like shampoo
4
Wait 5 minutes
5
Rinse until water runs clear

Frequently Asked Questions

How long do results last?
Results last 4-8 weeks until grays grow back. It's a permanent dye that doesn't wash out with shampooing.
Can I use Mustache & Beard on my hair?
No, it's specifically designed for beards. For hair, use Shampoo-In Color or Touch of Gray.
How many applications per box?
Mustache & Beard provides up to 3 applications (for short beards) if you seal the caps properly after use.
Are the products safe?
Yes, when following the usage instructions. Like all hair dyes, they require an allergy test 48 hours before every use to make sure you don't have sensitivity.
Is Shampoo-In Color a shampoo or a dye?
It's a permanent dye with easy shampoo-like application. The color lasts 4-8 weeks until grays grow back.
Why do I need to do an allergy test every time?
Body chemistry changes over time. Even if you've used the product many times, it's good to test before every application for peace of mind.
What's the difference between products?
Mustache & Beard: For beards, full coverage with brush. Shampoo-In: For hair, full coverage like shampoo. Touch of Gray: Partial coverage for natural salt & pepper look.

Final Tips

Do This

  • Patch test 48 hours before every use
  • Choose lighter shade when in doubt
  • Seal caps properly for multiple uses
  • Wear gloves during application
  • Follow the time exactly 5 minutes

Avoid This

  • Don't skip the allergy test
  • Don't use beard dye on hair
  • Don't leave longer than 5 minutes
  • Don't apply on irritated skin
  • Don't choose too dark a shade

Starter Kit - Start With These

If you want to cover grays in both hair AND beard, this is the ideal combination:

Just For Men M-45 Dark Brown M-45 For Beard Just For Men H-45 Dark Brown H-45 For Hair Just For Men Touch of Gray Touch of Gray

Tip: Orders over 59€ get free shipping!

Why Choose The Two Barbers

Since 2003 20+ years experience
Official Retailer 100% authentic
Full Range All shades available
Fast Shipping 1-2 business days
Free Shipping Over 59€

Remember: The right shade makes all the difference! Always start lighter and adjust.

Now go look 10 years younger!

Last updated: January 2025 | Author: The Two Barbers Expert Team