L'Oréal Paris
L'Oréal Magic Root Precision Temporary Gray Concealer Brush
L'Oréal's Magic Root Precision Temporary Gray Concealer Brush is a temporary gray concealer designed to quickly touch up fine, scattered grays. It targets pesky, scattered grays to touch up roots in a flash. Great for all hair types and textures, with a lightweight formula containing no ammonia.
Color-safe
Color Fading
Fine
Thick
Curly
Straight
Optimized for Your Environment & Lifestyle
Nykaa
In stock
Recommended
L'Oréal Magic Root Precision Temporary Gray Concealer Brush
L'Oréal Paris
loreal-magic-root-precision-temporary-gray-concealer-brush
Hair Color
10365004841253
Morning or Evening?
How often will you use this product?
Notes
Secure payment protection
Your Biodata Compatibility Analysis
Based on your 6 hair health indices and environmental factors
Poor Match
Significant incompatibilities
Growth Cycle Health Index
Hair Match
Hair Health Index Alignment
Optimal for OSI, SSI, DI, HSI
Ingredient Efficacy
Matching Ingredient Score
Environment Compatibility
Current UV, Air Quality & Humidity
Why This Works for Your Specific Profile
Damage Index:
Damage levels outside specified range may not benefit optimally from product formulation
Water Quality:
Hair:
No porosity-specific conflicts
Active Lifestyle:
High activity and frequent washing rapidly strip product benefits requiring excessive reapplication
Your Hair Profile Integration
Your Hair Archetype
Density Level
Washing Frequency
Shedding Level
Oil Level
Your Hair Health Indices
Oil Secretion (OSI)
Very low oil production
Scalp Sensitivity (SSI)
Very low sensitivity
Growth Rate (CMR)
Poor metabolism rate
Damage Index (DI)
Minimal damage
Hair Strength (HSI)
Very weak strength
Softness Index (SI)
Significant improvement needed
Water & Environmental Integration
Water:
Expected Results & Timeline
Key Highlights
What is it?
Temporary gray concealer with a precision brush applicator
Who Is It For
Adults
Budget
$12.99 - $25.98
Timeline
Immediate
Why You’ll Love It
What Does It Help With?
Touching up fine, scattered gray hairs
Best for
Color Fading
Features
Quick, smooth application; lightweight formula with no ammonia; blends to a natural finish
Checks
Ingredients Overview
Ingredients List
Cyclopentasiloxane, Isododecane, Trimethylsiloxysilicate, CI-77491, CI-77492, CI-77499/Iron-Oxides, Polyethylene, Triethylhexanoin, Isopropyl-Lanolate, Sorbitan-Sesquioleate, Disteardimonium-Hectorite, Trihydroxystearin, Dimethicone, Silica, Phenoxyethanol, Propylene-Carbonate, Peg-40-Stearate, Cera-Alba/Beeswax/Cire-Dabeille, Mica-Fil-Code-D223142/1
Key Ingredients
Cyclopentasiloxane, Isododecane, Trimethylsiloxysilicate, Iron-Oxides
Ingredients Details
Cyclopentasiloxane
Common Name(s): Cyclopentasiloxane,cyclic volatile silicone,dry-touch carrier solvent
CAS Number: N/a
DESCRIPTION
What It Does: Provides a dry, weightless application vehicle that evaporates cleanly leaving actives and non-volatile silicones deposited on skin — eliminating the residual heaviness of conventional liquid carrier solvents.
Why It's Used: Cyclosiloxanes are the unique volatile silicone solvents that dissolve non-volatile silicones (dimethicone, cyclomethicone), organic uv filters, and lipophilic actives, providing the sensory-superior dry-touch application experience in premium formulations.
How It Works: Cyclosiloxane vapour pressure (d5 cyclopentasiloxane ~0.3 mmhg at 25°c) provides clean evaporation at body temperature. the cyclic ring structure provides lower boiling point than equivalent linear dimethicone, enabling faster evaporation while the ring conformation maintains the silicone's low surface energy for smooth application.
Typically Found In: Primers,antiperspirants,sunscreens
TECHNICAL DETAILS
Primary Category: Functional ingredient – emollient
Secondary Functions: Barrier sealing,softening
Application Areas:
Facial Skincare
Body Care
Hair Care
Beard Care
Color Cosmetics (Makeup)
Dietary/Oral Supplements
Typical Concentration Range: 1%–50%
SOURCING & ETHICS
Vegan Status: Yes
Halal Status: Yes
Source Notes: Plant-derived, synthetic or animal-derived. verify source.
SKIN COMPATIBILITY
Irritancy Rating: 1/5 – very low
Comedogenicity Rating: 1/5 – low; formulation-dependent
Sensitivity Concerns: Non-irritating.
Safe for Sensitive Skin: Yes
SAFETY & COMPATIBILITY
Safety Profile: Excellent safety profile. ewg score: 1.
Works Well With: Humectants,ceramides,actives as carrier
Avoid Combining With: No significant incompatibilities
SCIENTIFIC NOTE
Cyclopentasiloxane (d5) and cyclohexasiloxane (d6) are under eu regulatory review for potential environmental persistence (pbt assessment) — formulators should monitor eu regulation 2018/35 implementation for restrictions in wash-off products.
Last Verified: Cosing database,eu cyclosiloxane regulatory review
Primary Sources: 2026-03-12
Cyclopentasiloxane
Common Name(s): Cyclopentasiloxane,cyclic volatile silicone,dry-touch carrier solvent
CAS Number: N/a
DESCRIPTION
What It Does: Provides a dry, weightless application vehicle that evaporates cleanly leaving actives and non-volatile silicones deposited on skin — eliminating the residual heaviness of conventional liquid carrier solvents.
Why It's Used: Cyclosiloxanes are the unique volatile silicone solvents that dissolve non-volatile silicones (dimethicone, cyclomethicone), organic uv filters, and lipophilic actives, providing the sensory-superior dry-touch application experience in premium formulations.
How It Works: Cyclosiloxane vapour pressure (d5 cyclopentasiloxane ~0.3 mmhg at 25°c) provides clean evaporation at body temperature. the cyclic ring structure provides lower boiling point than equivalent linear dimethicone, enabling faster evaporation while the ring conformation maintains the silicone's low surface energy for smooth application.
Typically Found In: Primers,antiperspirants,sunscreens
TECHNICAL DETAILS
Primary Category: Functional ingredient – emollient
Secondary Functions: Barrier sealing,softening
Application Areas:
Facial Skincare
Body Care
Hair Care
Beard Care
Color Cosmetics (Makeup)
Dietary/Oral Supplements
Typical Concentration Range: 1%–50%
SOURCING & ETHICS
Vegan Status: Yes
Halal Status: Yes
Source Notes: Plant-derived, synthetic or animal-derived. verify source.
SKIN COMPATIBILITY
Irritancy Rating: 1/5 – very low
Comedogenicity Rating: 1/5 – low; formulation-dependent
Sensitivity Concerns: Non-irritating.
Safe for Sensitive Skin: Yes
SAFETY & COMPATIBILITY
Safety Profile: Excellent safety profile. ewg score: 1.
Works Well With: Humectants,ceramides,actives as carrier
Avoid Combining With: No significant incompatibilities
SCIENTIFIC NOTE
Cyclopentasiloxane (d5) and cyclohexasiloxane (d6) are under eu regulatory review for potential environmental persistence (pbt assessment) — formulators should monitor eu regulation 2018/35 implementation for restrictions in wash-off products.
Last Verified: Cosing database,eu cyclosiloxane regulatory review
Primary Sources: 2026-03-12
Dimethicone
Common Name(s): Pdms,polydimethylsiloxane,silicone fluid
CAS Number: 9006-65-9
DESCRIPTION
What It Does: Provides silicone-characteristic silky feel and skin protection with adjustable viscosity.
Why It's Used: The benchmark cosmetic silicone – sets the gold standard for silky application feel, spreadability, and skin protection in virtually all skin care categories.
How It Works: Polydimethylsiloxane chain flexibility provides extremely low surface tension and high spreadability. inert si-o backbone provides chemical stability and excellent skin tolerance. occlusive film formation reduces tewl. higher viscosity grades provide more intense conditioning.
Typically Found In: Moisturizers,foundations,primers,sunscreens – nearly universal
TECHNICAL DETAILS
Primary Category: Functional ingredient – polydimethylsiloxane
Secondary Functions: Barrier sealing,softening
Application Areas:
Facial Skincare
Body Care
Hair Care
Beard Care
Color Cosmetics (Makeup)
Dietary/Oral Supplements
Typical Concentration Range: 0.1%–30%
SOURCING & ETHICS
Vegan Status: Yes – synthetic
Halal Status: Yes
Source Notes: Plant-derived, synthetic or animal-derived. verify source.
SKIN COMPATIBILITY
Irritancy Rating: 1/5 – very low
Comedogenicity Rating: 1/5 – low; formulation-dependent
Sensitivity Concerns: Non-irritating.
Safe for Sensitive Skin: Yes
SAFETY & COMPATIBILITY
Safety Profile: Excellent safety profile. ewg score: 1.
Works Well With: Humectants,ceramides,actives as carrier
Avoid Combining With: No significant incompatibilities
SCIENTIFIC NOTE
Dimethicone's exceptional silky feel arises from its very low intermolecular attractive forces (weak van der waals forces due to non-polar methyl groups) that allow silicone chains to slide freely over skin. the coefficient of kinetic friction for pdms against skin (~0.04) is among the lowest of any cosmetic material – explaining why even small amounts transform product feel.
Last Verified: Cosing database,cir safety assessment
Primary Sources: 2026-03-12
Isododecane
Common Name(s): Permethyl 99a,c12 isoparaffin,volatile hydrocarbon
CAS Number: 31807-55-3
DESCRIPTION
What It Does: Provides quick-dry volatile hydrocarbon carrier for colour cosmetics with complete evaporation and no residue.
Why It's Used: Primary colour cosmetic carrier — isododecane's volatility and excellent pigment dispersion combined with complete evaporation make it the standard carrier for long-wear foundations and colour cosmetics.
How It Works: Volatile isoparaffin (bp 177-188°c) evaporates from skin within 10-20 minutes. excellent pigment dispersion for colour cosmetics. spreading enhancement from low surface tension. no residue after evaporation provides clean, long-wear finish.
Typically Found In: Long-wear foundations,colour cosmetics,primers,sunscreens
TECHNICAL DETAILS
Primary Category: Functional ingredient – volatile hydrocarbon
Secondary Functions: Barrier sealing,softening
Application Areas:
Facial Skincare
Body Care
Hair Care
Beard Care
Color Cosmetics (Makeup)
Dietary/Oral Supplements
Typical Concentration Range: 5%–60%
SOURCING & ETHICS
Vegan Status: Yes – synthetic
Halal Status: Yes
Source Notes: Plant-derived, synthetic or animal-derived. verify source.
SKIN COMPATIBILITY
Irritancy Rating: 1/5 – very low
Comedogenicity Rating: 1/5 – low; formulation-dependent
Sensitivity Concerns: Non-irritating.
Safe for Sensitive Skin: Yes
SAFETY & COMPATIBILITY
Safety Profile: Excellent safety profile. ewg score: 1.
Works Well With: Humectants,ceramides,actives as carrier
Avoid Combining With: No significant incompatibilities
SCIENTIFIC NOTE
Isododecane's position as the preferred colour cosmetic carrier arises from a unique combination of properties that no other solvent provides simultaneously: volatility (complete evaporation for clean finish), pigment dispersion (superior to water or alcohols), compatibility with silicones (unlike many solvents), and skin safety (inert hydrocarbon without irritation potential of polar solvents).
Last Verified: Cosing database,cir safety assessment
Primary Sources: 2026-03-12
Personalized Usage Instructions
How to Use
Step 1
1
Step 2
Rotate bottom of concealer counter-clockwise 3-5 times to dispense a small amount of color onto brush
Step 3
Tip: First use may require up to 20 full rotations for color to dispense
Step 4
2
Step 5
Lightly dab brush onto dry hair using gentle, swift strokes to build and blend in color
Step 1
Tip: To avoid transfer to the scalp, gently pull hair away from the head as you brush
Step 2
3
Step 3
Let dry for 1 minute
Step 4
Re-cap the brush
Medical Chemicals
Protein/Moisture
-
pH Level
-
Porosity Taget
-
Customized for Your Profile
Scalp Condtions
Climate Suitability
Clinical Claims
Frequency
1. Rotate bottom of concealer counter-clockwise 3-5 times to dispense a small amount of color onto brush. Tip: First use may require up to 20 full rotations for color to dispense. 2. Lightly dab brush onto dry hair using gentle, swift strokes to build and blend in color. Tip: To avoid transfer to the scalp, gently pull hair away from the head as you brush. 3. Let dry for 1 minute. Re-cap the brush.