COUTUR HAIR Shampoos
COUTUR HAIR shampoos use Skinlacto 7714 technology to gradually restore natural-looking dark color to grey or lightened hair - no mixing, no developer, no waiting. Lather the shampoo in for 3-5 minutes and rinse; color builds progressively over several washes. The 10+ shampoos on skinsli span cool brown and dark brown shades, plus professional-size 360ml formats for frequent users. The formula is mild enough for daily use and can replace your regular shampoo entirely.
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Buying guide
COUTUR HAIR Color-Change Shampoos: What They Are and How to Use Them
COUTUR HAIR shampoos are color-depositing cleansers built around Skinlacto 7714, a Korean proprietary system that deposits pigment while you wash. Unlike permanent dye or semi-permanent color, there is no mixing step and no developer - the color agent is suspended in the shampoo itself and activates on contact with hair. Over 10 shampoos are available on skinsli, covering black, cool brown, and dark brown tones in sizes from 180ml to 360ml.
How Skinlacto 7714 deposits color
Skinlacto 7714 is a color-complex technology embedded in the shampoo base. When you lather and leave the product on for 3-5 minutes, pigment molecules attach to the hair shaft during the cleansing step. The deposit is light per wash but cumulative - after 5 to 10 uses, grey strands are significantly darker. The mechanism is closer to a color conditioner than permanent dye; it does not use hydrogen peroxide or ammonia.
Because the pigment sits on the cortex surface rather than inside it, the color fades naturally over time if you switch to a regular shampoo, giving you gradual exit without a hard line.
Choosing between black, cool brown, and dark brown
COUTUR HAIR currently offers three color families on skinsli. Black shampoos target strong grey coverage on naturally dark hair. Cool brown adds an ash undertone that works well for hair with warm, brassy greys. Dark brown is warmer and blends more naturally into brown or chestnut base colors.
A useful rule of thumb: choose one shade lighter than your target result for the first few weeks, since color builds. If you overshoot, switching to a regular shampoo for a few washes will gently fade the tone.
Picking the right bottle size
The 180-190ml sizes are best for first-time users who want to test a shade before committing. At roughly 20-30 washes per bottle (with a 3-5 minute leave-in time), they give about a month of daily use. The 360ml professional formats are more economical for people who have already confirmed their shade and plan to use the shampoo as their primary cleanser.
Step-by-step application
Wet hair thoroughly. Apply a generous amount of shampoo and work into a lather. Leave the lather on hair for 3-5 minutes - a shower cap helps retain heat and improves pigment uptake. Rinse completely. For maintenance after your target tone is reached, you can reduce leave-in time to 1-2 minutes or use the shampoo every other wash.
Avoid contact with light-colored towels during the rinse-off phase, especially in the first few uses, as excess pigment can transfer.
What 'Season 3' and 'Season 4' mean
COUTUR HAIR releases seasonal reformulations of the Skinlacto 7714 system. Season 4 is the current generation and features an updated pigment base for more consistent color build. Season 3 is still available for users who prefer the slightly softer deposit of the earlier formula. Both seasons follow the same application method.
Effect on hair condition and scalp
The COUTUR HAIR formula is designed for daily use without the damage associated with permanent dye. There is no bleaching agent, so it does not lift the cuticle or strip existing color. Fine or color-treated hair may benefit from following with a separate conditioner. The shampoo base is mild enough for sensitive scalps, though anyone with a history of reactions to hair dye should patch-test first.
Setting realistic expectations
Color-depositing shampoos are best suited for grey blending on dark hair rather than full coverage of heavy grey or colour transformation. Users with 30-50% grey typically see good results within 10 washes. Very coarse or resistant hair may need a longer leave-in time. Results vary by natural hair texture and the porosity of individual strands.
This is not a substitute for salon colour if you are looking for dramatic lightening or vivid color - it works within the dark end of the spectrum only.
Professional Crystal Hair Treatment 120ml
The Crystal Hair Treatment is a separate step, not a shampoo - it is a conditioning treatment to use after the color shampoo to seal the pigment deposit and add shine. It can be used 2-3 times per week rather than every wash. The 120ml tube is sized for at-home professional use and works with any of the COUTUR HAIR color shampoos.
FAQ
Frequently asked questions
FAQ
Frequently asked questions
How many washes does it take for COUTUR HAIR shampoo to show visible color change?
Most users with 20-40% grey coverage notice a visible difference after 5-7 washes. Those with finer, more porous hair may see results faster. Resistant or coarse hair may need 10+ washes. The key variable is how long you leave the lather on - the recommended 3-5 minutes gives significantly faster buildup than a quick rinse.
Is it safe to use COUTUR HAIR color-change shampoo every day?
Yes. The formula contains no bleach or ammonia and is designed to replace your regular shampoo for daily use. It does not damage the hair structure the way permanent dye does. Daily use builds color faster; once you reach your target tone, you can shift to every-other-day use or reduce leave-in time to slow further buildup.
How is this different from regular box hair dye?
Box dye uses hydrogen peroxide and an alkaline developer to lift the cuticle and bond pigment inside the hair shaft - a permanent change that requires regrowth touch-ups. COUTUR HAIR color-change shampoos deposit pigment on the surface of the hair without any developer or lifting agent. The effect is semi-permanent and gradual: color builds over multiple washes and fades naturally when you stop using the product.
What is the difference between cool brown and dark brown shades?
Cool brown has an ash or neutral undertone and is best for hair that tends to go warm or brassy in grey. It counteracts yellow tones. Dark brown has a warmer chestnut undertone that blends naturally into medium to dark brown base hair. If your natural hair color is closer to black, the black shampoo is the strongest match.
Which is better - Season 3 or Season 4 of the COUTUR HAIR shampoo?
Season 4 is the current formula and builds color slightly faster with a more even deposit. Season 3 is the previous generation with a softer, more gradual effect - some users prefer it for a subtler transition. If you are new to COUTUR HAIR, Season 4 is the recommended starting point. If you want slower buildup for experimentation, Season 3 is still a valid choice.
Can I use COUTUR HAIR color shampoo on previously dyed or bleached hair?
On previously colored dark hair, the shampoo works normally. On bleached or heavily highlighted hair, results vary: highly porous bleached strands absorb pigment faster, which can produce an uneven tone. We recommend patch-testing on a small section first if your hair has been chemically lightened.
Is the 360ml professional bottle a different formula from the 180ml version?
No, the formula is identical. The 360ml size is marketed as a professional format and is more economical per ml. It is simply a larger quantity of the same shampoo, suited for heavy users or for sharing in a household.
Do I have to use the Crystal Hair Treatment alongside the color shampoo?
The Crystal Hair Treatment is optional, not required. It functions as a conditioning sealant that locks in the pigment deposit and adds shine after the color shampoo step. Using it 2-3 times per week can improve longevity of the color effect and leave hair feeling softer. If you already have a conditioner you prefer, you can continue using it instead.
If I want to stop using COUTUR HAIR shampoo, how do I reverse the color buildup?
Simply switch back to your regular shampoo. Because the pigment sits on the surface of the hair shaft rather than inside it, it fades naturally over several washes. There is no need for a color remover or stripper. The transition will be gradual rather than immediate, typically taking 3-5 washes to begin fading and 2-3 weeks to fully return to your base color.
Is COUTUR HAIR shampoo suitable for a sensitive scalp?
The formula is free of bleach and ammonia, which are the main irritants in permanent dye. Most users with sensitive scalps tolerate it well. However, if you have a known allergy or reaction history with hair color products in general, a patch test on the inner elbow 24 hours before first use is advisable. People with very reactive scalps should consult a dermatologist before use.
Are COUTUR HAIR shampoos shipped from Korea?
Yes. COUTUR HAIR is a Korean brand and all products are sourced and shipped from South Korea. Skinsli handles customs and international logistics, so you receive a standard US domestic-style delivery experience with tracking. Delivery times and shipping options are shown at checkout.