Protect your hands and surroundings
Use the enclosed gloves. Protect clothing, towels and surfaces, and remove any drops immediately.
How Reparex works
Not a conventional hair dye.Reparex works gradually.
A clear cosmetic solution. Regular care. A gradual journey towards a shade you are happy with.
A small amount. Consistency matters.
01 / Melanin
Hair colour has a story.
Melanin gives hair its colour. During greying, the process that produces visible pigment changes.
02 / Mechanism
Where does Reparex come in?
Not as a layer of dye. Reparex combines a clear cosmetic solution with targeted application and regular use.
- G-Reductase
- Silver acetate
- Deoxygenated water
- Glycerin
The product explanation in detail
The product explanation describes G-Reductase, silver acetate and deoxygenated water in relation to oxygen. Glycerin contributes to moisturising care. This is an explanation of a cosmetic product, not a treatment claim or a guarantee of results. Check your current packaging for the exact ingredients and instructions.
03 / Consistency
More than one application.Your new ritual.
A routine you can make your own. A pace determined by your hair.
- 01
Day 1
Start applying once a day. A small amount on grey areas is enough.
- 02
7–10 days
The initial daily routine. If grey areas remain, continue daily until you are happy with the shade.
- 03
2–3 times a week
Once you reach your preferred shade, move to a maintenance routine.
The pace of change depends on your hair, the extent of greying and regular use. The initial 7–10 days are not a guarantee of results.
04 / Application
A small amount.A considered routine.
Four steps that belong together.
Apply a small amount
Apply just a few drops to grey areas on dry hair. Target the skin at the roots, rather than the lengths.
Spread gently
Spread evenly with the fingers of your other hand so the solution does not run. Too much may cause an unwanted reddish tone.
Massage and dry
Massage the skin with your fingertips two or three times. After three to four minutes, use a hairdryer; do not wash your hair immediately afterwards.
For undyed hair only. Read the current leaflet and packaging before use. These visuals are illustrative; follow the instructions for your specific product.
Two different approaches
Reparex is not conventional colouring.
Gradual care
- A gradual process
- Regular application
- A clear cosmetic solution
- Maintenance once you reach your shade
Colouring in one session
- Covers or changes hair colour
- A visible change during colouring
- A conventional colouring process
- Subsequent root touch-ups
Amazon customer experiences
What customers say
Selected positive Amazon reviews, summarised in English. These are individual experiences; results vary. Follow the current product leaflet.
★★★★★
Reparex for Men
After several weeks, the reviewer reported a gradual change in colour. They stressed patience and careful application, and described unwanted copper tones when using other styling products. They also warned that spills can stain skin, fabrics and surfaces.
★★★★★
Reparex for Women
The reviewer described white strands taking on a reddish-brown shade, then darkening with further applications. They preferred not needing to rinse the product out, but noted that applying too much could leave the hair feeling weighed down.
★★★★★
Reparex for Men
The reviewer said it worked as described when applied correctly. Their main advice was to wear gloves and remove splashes promptly, because the product can leave brown marks on skin, fabrics and bathroom surfaces.
★★★★★
Reparex for Women
After letting previous hair dye grow out, the reviewer was pleased enough to order a second bottle. They described regular maintenance use and emphasised protecting clothing and the sink from splashes, having noticed brown stains after application.
★★★★★
Reparex for Beard & Moustache
The reviewer reported that the colour changed gradually, initially towards light red and then brown. They stressed that the process took time and described reducing application frequency as the colour developed.
★★★★☆
Reparex for Beard & Moustache
The reviewer reported that it worked for them, while finding application somewhat awkward. They deducted one star for that inconvenience.
Is Reparex a conventional hair dye?
No. It is a clear cosmetic solution for regular care of greying hair, rather than a one-off coating of colour.
How often should I use it?
Once a day for the first 7–10 days. If grey areas remain, continue daily. Once you reach your preferred shade, usually 2–3 times a week. Follow the current instructions on your packaging.
When can I expect a change?
The process is gradual. The pace depends on your hair, the extent of greying and consistent use. The initial routine does not guarantee a date for results.
On wet or dry hair?
On dry, undyed hair. Target the skin at the roots in grey areas, rather than the lengths.
How much should I use?
Just a few drops. Spread gently so the solution does not run. Too much may cause an unwanted reddish tone.
Step-by-step care
How to use Reparex
Watch the original Boos Labs video in Slovak. The English steps are provided alongside it. Read the current product leaflet before use.
- Protect your hands, clothing and surrounding surfaces.
- Apply a small amount to dry, undyed hair, following the current leaflet for your product.
- Spread carefully, wait about 3–4 minutes and use a hairdryer as directed. Do not rinse immediately.
Use daily for the first 7–10 days, then adjust to the shade achieved. This is a usage schedule, not a guaranteed result within 10 days.