CAS 93841-25-9 ·
No specific rule on file.
Restricted Annex III/206
Conditions: Product type: (a) Hair dye substance in oxidative hair dye products (b) Products intended for colouring eyelashes (a) After mixing under oxidative conditions the maximum concentration applied to hair must not exceed 2,0 % (calculated as sulphate) (b) After mixing under oxidative conditions the maximum concentration applied to eyelashes must not exceed 1,75 % (calculated as free base) (b) Professional use
Required label warning: (a) To be printed on the label: The mixing ratio. “Hair colourants can cause severe allergic reactions. Read and follow instructions. This product is not intended for use on persons under the age of 16. Temporary ‘black henna’ tattoos may increase your risk of allergy. Do not colour your hair if: — you have a rash on your face or sensitive, irritated and damaged scalp, — you have ever experienced any reaction after colouring your hair, — you have experienced a reaction to a temporary ‘black henna’ tattoo in the past.” (b) As from 3 March 2018, to be printed on the label: The mixing ratio. “This product can cause severe allergic reactions. Read and follow instructions. This product is not intended for use on persons under the age of 16. Temporary ‘black henna’ tattoos may increase the risk of allergy. Eyelashes shall not be coloured if the consumer: — has a rash on the face or sensitive, irritated and damaged scalp, — has experienced any reaction after colouring hair or eyelashes, — has experienced a reaction to a temporary ‘black henna’ tattoo in the past. For professional use only. Rinse eyes immediately if product comes into contact with them”
Source: EU CosIng — Annex III · checked Oct 16, 2026
No specific rule on file. The FDA regulates few cosmetic ingredients by name; no rule does not mean approval.
HYDROXYETHYL-P-PHENYLENE-DIAMINE SULFATE
Information only, not medical advice. Rules change — always check the linked official source. If you are pregnant, have a skin condition or allergies, ask a dermatologist or pharmacist.