Gray retouch clients keep many color books full, and 10 minute hair color was made for them. Express permanent lines promise gray coverage after 10 minutes of processing, which frees chair time for walk-ins and back-to-back appointments. But every brand mixes, times and lifts differently, and using one line’s rules on another is how express color goes wrong.
Below, we compare the 10-minute permanent lines we carry at OBB using each maker’s own instructions, then cover when express color fits, when a standard line is better, and a reliable workflow.
Key takeaways
- Each express line we carry is a permanent color that its maker says processes in 10 minutes with up to 100% gray coverage.
- Ratios differ: most mix 1:1, Paul Mitchell 1:1.5 and Rusk 1:2 (1:1 for resistant gray). Use the developer the maker names.
- Kenra, Paul Mitchell, Rusk and Joico say no heat; Wella allows controlled heat but keeps the time at 10 minutes.
- Express color is built for root retouches, gray blending and short-notice appointments. For big lift, fashion shades, correction or very resistant gray, use the full line.
- Time every service exactly, and do the 48-hour allergy alert test before each one.
What 10 minute hair color is
Express permanent color is still oxidative permanent color: mixed with developer, it can lift natural pigment and deposits color inside the hair. The difference is a formula tuned to finish in about 10 minutes. Standard lines take longer: Wella lists 30–40 minutes without heat for Koleston Perfect, and Paul Mitchell lists 35 minutes for the color. For the basics, see our guide to permanent vs demi vs semi-permanent color.
How each maker says it works faster
- CHI Color Express: “Hue Definition Technology” (aloe vera, hyaluronic acid, silk protein) and concentrated, ammonia-free permanent dyes with what CHI calls “exceptional penetrability.”
- Kenra Studio Stylist Express: built to fully process in 10 minutes. Its N series is neutral, slightly cooler than standard Kenra Color N to account for rapid oxidation and added warmth, so it can look darker.
- Paul Mitchell The Color 10: the lowest amount of ammonia needed for slight lift and rapid dye development, plus an oleic acid surfactant to speed application and dye deposit.
- Rusk RUSKin10 (IN10): “Micro Pigment technology” to deposit color deep in the cortex, with five amino acids to condition.
- Schwarzkopf IGORA COLOR10: “Amino Acid Carrier Technology,” an express carrier that Schwarzkopf says helps pigments penetrate the hair faster.
- Wella Koleston Xpress ME+: “Control-X Technology” to help prevent over-processing, plus Metal Purifier and ME+ dye technology.
- Joico LumiShine Lumi10: a “Quick Coverage System” activated by the LUMI10 Accelerator, which Joico says has 0.6% more peroxide than a traditional 20 volume developer.
These are the makers’ claims, not independent tests. All share a short, fixed window, so mixing, timing and speed matter more than usual.

The express lines compared
Both tables come from the makers’ own sheets, pages and manuals (see Sources); “see maker’s chart” means no published figure. Always check the leaflet in the box.
Developer, ratio, timing and heat
| Line | Developer and ratio | Processing time | Heat |
|---|---|---|---|
| CHI Color Express | CHI 20 volume developer only, 1:1 | 10 min at room temperature; blending 5 min; resistant hair up to 15 min; not over 20 | Optional for full gray or resistant hair: 5 min low heat + 5 min room temperature |
| Kenra Studio Stylist Express | Kenra Color developer 10–30 volume, 1:1 (20 volume is the standard for gray) | 10 min; blending 5 min | Not recommended |
| Paul Mitchell The Color 10 | Paul Mitchell 20 volume Cream Developer, 1:1.5 | 10 min; up to 20 for slightly more coverage and a richer result | No heat |
| Rusk RUSKin10 (IN10) | RUSKin10 20 volume developer, 1:2; 1:1 for opaque or resistant gray coverage | 10 min | No heat; room temperature |
| Schwarzkopf IGORA COLOR10 | IGORA ROYAL Oil Developer, 1:1 (Schwarzkopf’s formulas use 10, 20 or 30 volume) | 10 min | See maker’s chart |
| Wella Koleston Xpress ME+ | Welloxon Perfect 6% (20 volume) or 9% (30 volume), 1:1 | 10 min | Usually not needed; controlled heat optional for coarse hair, still 10 min |
| Joico LumiShine Lumi10 | LUMI10 Accelerator (22 volume), 1:1; no other developer recommended | 10 min | No heat |
When does the 10 minutes start? Most makers just say “process 10 minutes.” Rusk’s highlighting directions start the clock after the last foil, Schwarzkopf’s step-by-steps list processing as the step after application, and Wella and Paul Mitchell say to apply quickly. Keep application short so the first section doesn’t process much longer than the last.
Gray coverage, lift and extra time
| Line | Gray coverage (maker’s claim) | Lift | Left on past 10 minutes |
|---|---|---|---|
| CHI Color Express | Up to 100%; for levels 3–8 with 40–80% gray | See maker’s chart | Progressively darker |
| Kenra Studio Stylist Express | Up to 100%; use N or NB shades | “Lifts and deposits”; see maker’s chart | Darker (progressive dyes) |
| Paul Mitchell The Color 10 | Up to 100%; for levels 1–8 with 40–60% gray | On-level or up to 1 level | Richer and darker at 20 min; no need to go longer |
| Rusk RUSKin10 (IN10) | 100% | Up to 2 levels with 20 volume, 3 with 30, 4 with 40; Boost Clear (virgin hair) or High Lift Ash at 1:2 with 40 volume: up to 4 | No darker (non-progressive) |
| Schwarzkopf IGORA COLOR10 | Up to 100% white hair | See maker’s chart | See maker’s chart |
| Wella Koleston Xpress ME+ | Up to 100%, any shade | Up to 1 level (20 volume) or 2 (30 volume) | Richer at 20 min without sinking multiple levels darker |
| Joico LumiShine Lumi10 | 100%; darker on hair without gray | See maker’s chart | Darker and unpredictable |
When 10 minute color fits
Gray coverage and root retouches
This is the core job. Paul Mitchell aims The Color 10 at levels 1–8 with 40–60% gray, CHI aims Color Express at levels 3–8 with 40–80% gray, and Wella recommends Koleston Xpress for express root touch-ups between color services. Build coverage formulas on the naturals: Kenra says N or NB shades belong in every full-coverage formula, and Rusk adds more N or NN as the gray percentage rises. See our guide to hair color levels and tones.
Men’s color and gray blending
CHI Color Express blends gray in 5 minutes. Kenra’s manual gives men 5 minutes for blending (combed through for a softer effect) and 10 for full coverage, and Schwarzkopf lists male clients as a COLOR10 target. CHI, Kenra, Paul Mitchell and Rusk all say their express color is not for facial hair.
Short-notice and back-to-back appointments
Makers pitch express color for walk-ins, last-minute requests, lunch-hour touch-ups and two- to three-week regrowth. Wella’s express touch-up is a T-line application at the hairline and part, done in 30 minutes or less. Kenra and Schwarzkopf also suggest full applications on short hair.
When a standard permanent line is the better choice
Paul Mitchell says The Color 10 is not intended to replace all traditional permanent retouches. Use the full line for:
- Big lift. Where makers publish lift, it is modest: Wella’s maximum is two levels (with 30 volume), and Paul Mitchell formulates up to one level lighter. Rusk is the exception, with up to four levels from Boost Clear or High Lift Ash. For more lift, use high-lift color or lightener; see our developer volume guide.
- Very resistant gray. Wella sends hair that is “notoriously hard to cover” to Koleston Perfect Intense Naturals, and Paul Mitchell’s chart positions its standard line, the color (35 minutes), for over 50% gray and maximum coverage on resistant gray. See how to cover resistant gray hair.
- Fashion shades and big tonal changes. Wella lists 13 Koleston Xpress shades and CHI lists 20, while Wella calls Koleston Perfect, with more than 160 shades, the optimal choice for bold, transformative looks, color balancing and tonal change.
- Corrective color. Correction needs time to assess and adjust. A fixed 10-minute window leaves little margin, and several lines (CHI, Kenra, Joico) darken if you stretch the time.
- Little or no gray. CHI and Paul Mitchell say hair with more pigment than gray turns out darker, and Joico suggests formulating Lumi10 to a lighter level on hair without gray because of its extra dye load.
- Porous, previously colored lengths. CHI’s directions say to apply to new growth only and avoid overlapping. For the lengths, makers pair something gentler: Wella a Shinefinity glaze, Kenra a matching Kenra Color Demi-Permanent shade, and Rusk a Deepshine Gloss applied right after RUSKin10.
Workflow for a clean 10-minute service
- Allergy alert test. CHI, Paul Mitchell and Wella require an allergy test 48 hours before each application, and the FDA advises a patch test every time. Wella says its ME+ dyes reduce the risk of developing a new allergy, yet it keeps the same rule. See our 48-hour patch test guide.
- Formulate, then weigh. Paul Mitchell’s 1:1.5 is 10 g of color to 15 g of developer; Rusk’s standard mix is 1 oz of color to 2 oz of developer.
- Prep before you mix. Wella says to section first and mix right before application. Have gloves, clips, barrier cream and a timer ready.
- Apply fast, in order. Start where the gray is heaviest (Wella), or in the front sections with the hairline and fine areas last, using fine partings (Paul Mitchell). Paul Mitchell wants clean, dry hair; Kenra wants dry, unwashed hair.
- Time it. The FDA says to keep track of time with a clock or timer. CHI suggests wiping a strand clean to check progress.
- Stay on the regrowth. Refresh the lengths only with the demi or gloss the maker pairs.
- Emulsify and rinse. CHI says to add a little warm water, massage and rinse for at least 5 minutes; Schwarzkopf rinses until the water runs clear.
- Record it. Note shade, developer, ratio and time on the client card.
Shop 10 minute hair color at OBB
We carry these express lines in Westminster, plus products their makers pair with them:
- CHI Color Express with CHI 20 Volume Developer, the developer CHI specifies
- Kenra Studio Stylist Express, plus Kenra Color Demi-Permanent for the lengths
- Paul Mitchell The Color 10
- Rusk RUSKin10 (IN10), plus Rusk Deepshine Gloss for the ends
- Schwarzkopf IGORA COLOR10
- Wella Koleston Xpress ME+, plus Wella Shinefinity Zero Lift Glaze with its Brush & Bowl Activator
- Joico LumiShine Lumi10
- Service basics: Colortrak vinyl disposable gloves and Framar Dye Defender barrier cream
Browse every line in Color, Developer & Lightener, or call or text (949) 591-5304 with your list and we will confirm stock and pricing.
FAQ
Does 10 minute hair color really cover gray?
Within its intended range, yes: each line claims up to 100% coverage in 10 minutes. Stay inside the maker’s range (for example, levels 1–8 with 40–60% gray for Paul Mitchell) and move very resistant gray to the full line.
What happens if you leave 10 minute color on longer?
It depends. CHI, Kenra and Joico go darker, and Joico says results become unpredictable. Paul Mitchell allows up to 20 minutes for a richer result, Wella says Koleston Xpress gets richer without sinking multiple levels darker, and Rusk says RUSKin10 does not go darker.
Can you use heat with 10 minute hair color?
Usually not. Kenra, Paul Mitchell, Rusk and Joico say no heat. Wella allows controlled heat for coarse hair, still for 10 minutes, and CHI’s sheet lists 5 minutes of low heat plus 5 at room temperature for full gray coverage or resistant hair.
Can you mix express color with any developer?
No. Use the maker’s developer and ratio. Kenra, Paul Mitchell and Rusk also say not to intermix their express shades with their other color lines, while CHI allows mixing Color Express with CHI Ionic to boost color.
Can you use 10 minute hair color on beards?
Not these lines. CHI, Kenra, Paul Mitchell and Rusk say their express color is not for facial hair, and the FDA warns never to dye eyebrows or eyelashes, which can hurt the eyes and may even cause blindness.
Sources
- CHI (Farouk Systems), CHI Color Express for professionals (FAQ, ideal client, technology) and Color Express instruction sheet (PDF)
- Kenra Professional, Studio Stylist Express 10N, Studio Stylist Express Gets a Refresh, 3 Ways to Cover (or Blend) Gray Hair and Studio Stylist Express Technical Manual (2023, archived copy)
- Paul Mitchell (John Paul Mitchell Systems), the color 10 paper chart (PDF) and the color 10 Product Knowledge
- Rusk, RUSKin10 and RUSKin10 10-Minute Express Permanent Color
- Schwarzkopf Professional, IGORA COLOR10 (Canada, archived 2020) and ASK Education, Essential Brands: IGORA COLOR10, Shine Halo and Soft Grading (archived 2019)
- Wella Professionals (Wellastore US), Koleston Xpress: What Is It?, Koleston Xpress vs. Koleston Perfect, Koleston Xpress FAQ and Koleston Xpress 6/N (usage and warnings)
- Joico, LUMI10 fact sheet (archived copy)
- U.S. Food & Drug Administration, Hair Dyes
This article is general education for licensed professionals. Always follow the instructions that come with the product you are using.