SkinSense Diary
Ingredients / #51656

4-Amino-2-Hydroxytoluene

CAS: 2835-95-2 · EC: 220-618-6
Colorant
CosIng Ref: 31522 EU Restriction: III/1/243
💡 For reference only. Does not constitute medical advice.
Description
This colorant is used in hair dyes and some cosmetic products to create specific color shades, particularly in darker tones. It helps achieve long-lasting color results by penetrating the hair shaft or skin surface. However, it has moderate safety concerns and may cause allergic reactions in sensitive individuals, so patch testing is recommended before use.
Synonyms
4-아미노-2-하이드록시톨루엔 (ko) 5-amino-o-cresol
Properties
✗ Fragrance ✗ Preservative ✓ Colorant
Safety Rating
INTERNAL 6/10 · Moderate-High
Based on GHS hazard classification: H315=3, H317=5; EU restricted

Hazard Classification (GHS/CLP)

H-Code Description Category
H315 皮膚刺激 health
H317 可能引起皮膚過敏 health
H319 眼部刺激 health
H335 可能刺激呼吸道 health
H400 對水生生物極毒 environmental
H410 對水生生物極毒（長期） environmental
H411 對水生生物有毒（長期） environmental

Found in products

Total: 96
Product Brand Occurrences
Clairol Nice'n Easy Hair Dye 11A Ultra Light Ash Blonde Nice'n Easy 28
Clairol Nice'n Easy Hair Dye 5WR Medium Warm Auburn Nice'n Easy 17
Clairol Nice'n Easy Hair Dye 3 Brown Black Nice'n Easy 12
Clairol Nice'n Easy Zero Ammonia Hair Dye - Light Brown Clairol 9
L'Oréal Casting Crème Gloss - 418 Choco Mocha Semi-Permanent Hair Dye L'Oreal Paris Casting Crème Gloss 8
L'Oréal Excellence Crème Universal Nudes 6U Dark Blonde L'Oreal Paris Excellence Crème 8
BioKap Chocolate Chestnut 4.05 Rapid Hair Dye 135 ml BioKap 6
Superdrug 75Ml Hairspray - Firm Hold Superdrug 6
Preference 1 Black Permanent Hair Dye L'Oreal Paris Preference 4
BioKap Natural Black 1.0 Rapid Hair Dye 135 ml BioKap 3
GOOD Permanent Hair Dye (Shade: 5.5 Auburn Hibiscus Brown) Garnier 3
No Bleach London Cherry Cola Permanent Hair Dye Kit Bleach London 3
Nutrisse 3.6 Deep Reddish Brown Permanent Hair Dye Garnier 3
Nutrisse Cool Browns 5.12 Glacial Brown Permanent Hair Dye Garnier 3
Nutrisse UC 4.15 Iced Coffee Garnier 3
Nutrisse Ultra Color 6.60 Fiery Red Permanent Hair Dye Garnier 3
Olia 4.62 Dark Garnet Red No Ammonia Permanent Hair Dye Garnier 3
Olia Bold 6.60 Intense Red No Ammonia Permanent Hair Dye Garnier 3
Olia Red Laquers 5.52 Glossy Merlot Garnier 3
Olia Toner 10.01 Platinum Blonde Garnier 3
Olia Toner 10.2 Pearly Blonde Garnier 3
Olia Toner 9.1 Cool Blonde Garnier 3
Preference Vivids (Colorista) Hair Dye Magnetic Plum 3.16 L'Oreal Paris Preference 3
Schwarzkopf LIVE Intense Colour L75 Deep Red Permanent Hair Dye Schwarzkopf 3
Superdrug 75ml Hair Mousse - Extra Firm Hold Superdrug 3
Superdrug Colour Performance 5.0 Natural Medium Brown Superdrug 3
BioKap Extra Light Golden Blond 9.3 Rapid Hair Dye 135 ml BioKap 2
Bleach London White Toner Kit Bleach London 2
Clairol Colour Strong Zero Ammonia Hair Dye Intense Dark Red Clairol 2
Clairol Root Touch-Up Hair Dye 6A Light Ash Brown Nice'n Easy 2
Colour Freedom Permanent Hair Colour. 12.7 Arctic Blonde. Knight and Wilson 2
Garnier Nutrisse Permanent Hair Dye Light Ash Blonde 9.13 Garnier Nutrisse 2
GOOD Permanent Hair Dye (Shade: 4.15 Iced Chestnut Brown) Garnier 2
Jr Bblonde 75Ml Toner Vanilla Jerome Russell 2
Knight & Wilson Colour F 150ml Ant OR Colour Freedom 2
L'Oréal Casting Crème Gloss 3102 Cool Dark Brown Hair Dye L'Oreal Paris Casting Crème Gloss 2
L'Oréal Excellence Crème 6 Natural Light Brown L'Oreal Paris Excellence Crème 2
L'Oréal Paris Preference Le Blonding Acidic Toner Platinum Ice L'Oreal Paris Preference 2
Nutrisse Ultra Color 2.6 Dark Cherry Red Permanent Hair Dye Garnier 2
Nutrisse Ultra Color 5.25 Frosted Chestnut Brown Permanent Hair Dye Garnier 2
Nutrisse Ultra Color 5.62 Vibrant Red Permanent Hair Dye Garnier 2
Olia Bold 7.40 Intense Copper Permanent Home Hair Dye Garnier 2
Olia Red Laquers 7.25 Vinyl Blush Garnier 2
Préférence le-blonding-acidic-toner-pearly-boost L'Oreal 2
Preference Infinia 11.11 Ultra Light Crystal Blonde Hair Dye L'Oreal Paris Preference 2
Preference Infinia P74 Mango Intense Copper Hair Dye L'Oreal Paris Preference 2
Preference Vivids (Colorista) Hair Dye Bright Red 8.624 L'Oreal Paris Preference 2
Preference Vivids (Colorista) Hair Dye Electric Mango 7.46 L'Oreal Paris Preference 2
Preference Vivids (Colorista) Hair Dye Smokey Grey 9.11 L'Oreal Paris Preference 2
Schwarzkopf Brow Tint Permanent Eye Brow Colour Dark Brown Schwarzkopf 2
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