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
Schwarzkopf LIVE 043 Red Passion Permanent Hair Dye LIVE 2
Schwarzkopf LIVE B15 Platinum Blonde Permanent Hair Dye LIVE 2
Schwarzkopf Oleo Intense 3-10 Deep Brown Hair Dye Schwarzkopf 2
Simply Colour Permanent Hair Dye – Natural Dark Brown (3.0) Simply Colour 2
Superdrug Colour Radiance Dark Brown 4/0 Superdrug 2
BioKap Dark Blond Havana 6.06 Rapid Hair Dye 135 ml BioKap 1
BioKap Ruby Red 6.66 Rapid Hair Dye 135 ml BioKap 1
Clairol Nice'n Easy Hair Dye, 8S Soft Silver Nice'n Easy 1
Colorcharm Demi-Permanent Cream Hair Color - 5N Lightest Neutral Brown Wella 1
Colorcharm Permanent Crème Toner - T12 Silver Mist Wella 1
Color Dream Demi-Permanent Kit - Cool Blonde DpHUE 1
Color Retouch 4.0 Brown Garnier 1
Color Retouch 6.6 Red Garnier 1
Colour Freedom Hair Colour. 10.21 Lightest Extra Ash Blonde Knight and Wilson 1
Colour Freedom Permanent Hair Colour. 4.0 Dark Brown. Knight and Wilson 1
Colour Freedom Permanent Hair Colour. M102 Silver Violet. Knight and Wilson 1
Excellence Créme 5.6 Rich Auburn: 100% Grey, quality, shine, for vibrant lasting color L'Oreal 1
Garnier Belle Color 5.5 Natural Light Auburn Permanent Hair Dye Garnier 1
Garnier Good Permanent Hair Dye Blackberry Brown 3.12 Garnier Good 1
Garnier Good Spicy Blonde 6.35 Ginger Toffee Garnier 1
GOOD Permanent Hair Dye (Shade: 4.61 Blazing Sunrise) Garnier 1
GOOD Permanent Hair Dye (Shade: 7.0 Almond Creme Dark Blond) Garnier 1
KISS brow tint kit KEBT01C Kiss 1
L'Oréal Casting Crème Gloss 1010 Iced Light Blonde Hair Dye L'Oreal Paris Casting Crème Gloss 1
L'Oréal Paris Excellence Age Perfect Nudes 9.31 Natural Light Golden Blonde L'Oreal 1
L’Oréal Paris Preference Permanent Hair Dye, Luminous Colour, Ultra Ash Blonde 7.11 L'Oreal 1
Nutrisse 3.23 Dark Quartz Brown Permanent Hair Dye Garnier 1
Nutrisse 4.5 Auburn Permanent Hair Dye Garnier 1
Nutrisse 4.6 Deep Red Permanent Hair Dye Garnier 1
Nutrisse UC 3.62 Burgundy Garnet Garnier 1
Nutrisse Ultra Color 7.40 Copper Passion Permanent Hair Dye Garnier 1
Olia Bold 3.16 Deep Violet No Ammonia Permanent Hair Dye Garnier 1
Olia Bold 4.26 Rose Violet No Ammonia Permanent Hair Dye Garnier 1
Olia Midnight 3.23 Black Amber No Ammonia Permanent Hair Dye Garnier 1
Olia Permanent Hair Dye, Iced Chocolate 4.15 Garnier 1
Préférence 9-1-light-ash-blonde-permanent-hair-dye L'Oreal 1
Preference 10.1 Helsinki Very Light Ash Blonde Hair Dye L'Oreal Paris Preference 1
Preference Infinia 4.15 Intense Deep Brown Hair Dye L'Oreal Paris Preference 1
Ryo Scalp Care Black Soybean Hair Dye 120g 5.0 Ash Brown Ryo 1
Schwarzkopf Creme Supreme 6-88 Intense Red Hair Dye Schwarzkopf 1
Schwarzkopf LIVE 105 Mauve Kiss Permanent Hair Dye LIVE 1
Schwarzkopf LIVE U71 Metallic Silver Permanent Hair Dye LIVE 1
Superdrug Colour Effects Warm Chocolate Brown Hair Dye Superdrug 1
Superdrug Colour Performance 10.03 Golden Beige Blonde Superdrug 1
Superdrug Colour Performance 77.55 Vibrant Red Superdrug 1
Superdrug Colour Radiance 66.46 Mahogany Superdrug 1
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