p-Methylaminophenol Sulfate
4-(methylamino)phenol hemisulfate; Metol; 4-(methylamino)phenol sulfate (2:1)
Methylaminophenol-class developing agent in oxidative hair color; contact allergen with potential for cross-reactivity in para-amino compound-sensitized individuals. CIR assessed as safe in hair dye use.
Function & Common Use
Oxidative Hair Dye
Hair Dyes
Permanent hair color; also used in photographic developer applications
Synthetic
Concentration Limits
Not explicitly specified; aligned with BIS IS 4707
Specific concentration limit per Annex III entry; typically up to 0.68% in oxidative hair dye ready-to-use
No federal limit specified; CIR concluded safe as used in hair dye
Restricted; MFDS safety standards apply
Format restriction: Oxidative hair dye use; patch test recommended; label warning required
Baby restriction: Yes
Pregnancy: No
IFRA: No
Frequently Asked Questions
Is p-Methylaminophenol Sulfate safe to use in skincare?
p-Methylaminophenol Sulfate has a Medium concern rating. Methylaminophenol-class developing agent in oxidative hair color; contact allergen with potential for cross-reactivity in para-amino compound-sensitized individuals. CIR assessed as safe in hair dye use.
Is p-Methylaminophenol Sulfate allowed in India?
p-Methylaminophenol Sulfate is currently classified as "Permitted" under Indian cosmetics regulations. The maximum permitted concentration is Not explicitly specified; aligned with BIS IS 4707.
What is p-Methylaminophenol Sulfate used for in cosmetics?
p-Methylaminophenol Sulfate functions as: Oxidative Hair Dye. It is commonly found in: Permanent hair color; also used in photographic developer applications.
Can p-Methylaminophenol Sulfate cause an allergic reaction?
Yes. p-Methylaminophenol Sulfate has an allergen flag (Yes). If you have sensitive skin or known fragrance/contact allergies, patch-test products containing this ingredient before full use.
Is p-Methylaminophenol Sulfate safe for babies?
p-Methylaminophenol Sulfate has baby/child restrictions: Yes. Avoid using products containing this ingredient on infants unless specifically formulated and labelled for baby use.
Regulatory Status
EU Annex: Annex III (restricted)
Identifiers
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