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Product guide

Just For Men Moustache & Beard Dye M45 Dark Brown

Just For Men Moustache & Beard Dye M45 is a dark brown facial-hair colourant intended to cover grey in moustaches and beards. The listing claims a five-minute application and ammonia-free formula, customer feedback reports mixed colour, staying power and skin-comfort experiences.

At a glance

  • Dark brown shade for facial hair grey coverage.
  • The listing describes a five-minute application and a brush for applying the colour.
  • The listed instructions require mixing a colour base and developer, applying the mixture, waiting five minutes, then rinsing and shampooing.
  • The listing says the formula is ammonia-free.
Price
£6.64Save 27%

Reference price: £9.15

Price checked: 12 Nov 2026

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Often bought together

Pros and cons

Pros

  • Facial-hair-specific use and dark brown shade make its intended purpose clear.
  • The five-minute wait is a relatively brief stated processing time.
  • The listing describes a brush for targeted application.

Cons

  • Customer feedback includes reports of burning and itching, individual skin response may vary.

Technical specifications

13 specifications
Identity
BrandJust For Men
ModelUK MB M45
Colourdark brown
Hair typeCoarse, Color Treated
Hair colour permanencePermanent
Formula and use
Item formCream
Ammonia-free claimAmmonia Free
Listed cure time5 Minutes
Recommended useColoring facial hair, covering grey hair
Suitable hair colourGrey
Package size28GM
Dimensions and installation
Dimensions listed2.5 x 2.3 x 2.6 cm; 68 g
Weight listed0.07 Kilograms

What to know before buying

Listing details to confirm

Listing details are inconsistent: the title and colour field identify Dark Brown, while the description calls the shade “Dark Brown Black”, it also claims a no-mix, ready-to-use application, but the directions say to mix colour base and developer. Confirm the selected pack and follow its supplied instructions, the five-minute claim is the stated processing time, not a guaranteed result. The safety text says for external use only, avoid eye contact, and keep away from naked flame or direct heat.

What’s in the box

Included
  • 1 x Just For Men

Who is it for?

A good fit for

  • People seeking a permanent dark brown dye intended for covering grey in moustaches or beards.
  • Buyers who prefer a short stated processing time and are comfortable mixing colour base and developer.

Less suited to

  • Anyone seeking a confirmed no-mix product based only on the description.
  • People concerned about possible skin irritation or who need a proven skin-safe option.
Just For Men Moustache & Beard Dye M45 Dark Brown · photo 2
Additional product photo 2

Customer reviews on Amazon

4.4 / 5 · 30,429 ratings
  • 5 stars68%68%
  • 4 stars17%17%
  • 3 stars8%8%
  • 2 stars2%2%
  • 1 star5%5%

Customer feedback describes effective grey coverage and a natural-looking result, with the five-minute application viewed as convenient. Experiences with shade accuracy, coverage and longevity are mixed: some report darker-than-expected colour or fading. Reports of burning and itching make skin comfort an important consideration, while opinions on removal and value also vary. The aggregate rating is 4.4 out of 5 from 30,429 ratings, but it does not establish how well the dye will suit an individual’s colour or skin response.

Positive themes

  • Customers report grey coverage and a natural appearance.
  • Some customers describe the short application time positively.

Negative themes

  • Customer feedback includes reports of burning and itching.

Mixed feedback

  • Feedback varies on shade, coverage and how long the result lasts.
  • Opinions differ on value and how easily the colour washes off.

Frequently asked questions

How long is the stated processing time?

The listing gives five minutes, followed by rinsing and shampooing. Follow the instructions supplied with the selected pack.

Is this a ready-to-use, no-mix dye?

The description calls it no-mix, but the listed directions say to mix the colour base and developer. The listing is inconsistent, so check the pack instructions before use.

What shade is M45?

The title and colour field say dark brown, while the description calls it “Dark Brown Black”. Confirm the shade on the selected packaging.

What safety information is supplied?

The listing says for external use only, avoid contact with eyes, and keep away from naked flame or direct heat sources.

Just For Men Moustache & Beard Dye M45 Dark Brown · photo 3
Additional product photo 3

Alternative options

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