N,N-Bis(Hydroxyethyl)-p-Phenylenediamine Sulfate

N,N-Bis(Hydroxyethyl)-p-Phenylenediamine Sulfate molecular structure
molecular structure · PubChem
AKA: Hydroxyethyl -p-Phenylenediamine Sulfate
Allergen Warning
⚠️ PPD (Hair Dye)
Synthetic
Cleanser
Not Clean
N,N-Bis(Hydroxyethyl)-p-Phenylenediamine Sulfate is a cosmetic ingredient. Assessed as safe by the CIR.
Formula
C10H18N2O6S
Mol. Weight
294.33
CAS #
54381-16-7
Form
Powder
Functions
Surfactant
Makes oil and water mix so dirt, makeup, and sunscreen can actually be washed away. The reason your face wash foams.
Cleansing
Makes oil and water mix so dirt, makeup, and sunscreen can actually be washed away. The reason your face wash foams.
Hair Dyeing
Moisturizing
Wound Healing
Improves Elasticity
Colors hair
Traditional Use
A synthetic chemical used in oxidative hair dye formulations, developed in the mid-20th century. Created as an intermediate to facilitate permanent hair color development in modern cosmetics.
EWG
4
CIR
Safe as used
Pregnancy
Caution
CIR Safety Findings
medical-approval
all-shades-safe
Regulatory Status
USA✔ permitted
CANADA✔ permitted
Regulatory Agencies
Skin Types
●all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Caution
The paper trail
🔬Peer-reviewednone on file
⚖️Regulatory0 listings
🛡️Safety-assessed1 review →
Counts, not a verdict. A listing isn't a study. The trail, you decide.
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR