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AMINOETHYL PROPANEDIOL.

Valuable CAS 115-70-8 / BUFFERING

Aminoethyl Propanediol (AEPD) is a multifunctional alkanolamine that acts as a precision pH adjuster. It also interacts with skin sebum, offering potential benefits for deep pore cleansing.

buffering pH adjuster

Science

As an alkanolamine, AEPD neutralizes acidic components within formulations, stabilizing the pH. On the skin, it reacts with sebum's fatty acids to form soaps, which can emulsify and facilitate sebum removal from hair follicles.


Research

Medium confidence
Effective range 1–2%
Optimal

1-2%

Key findings

  1. 01 Concentrations of 1-2% were found optimal for interacting with model skin sebum, promoting penetration and removal from hair follicles; higher concentrations hindered cleansing.

Transparency

Not commonly dusted

The Formula

Solubility
Water
Optimal pH 4 – 11
0 7 14

Stability

AEPD is highly stable in aqueous solutions, functioning as a crystalline, polar base with a 0.1M solution pH of approximately 10.8.

Conflicts

  • N-nitrosating agents
  • Strong oxidizing agents
  • Nitrites

Safety

CIR Status
Safe as used
Max tested
10%
Sensitization risk Low

The CIR Expert Panel concluded AEPD is safe as used. It must not be formulated with N-nitrosating agents to prevent the formation of potentially carcinogenic nitrosamines.


Your Skin

Yes Normal
Yes Dry
Yes Oily
Yes Sensitive
Irritancy Low
Comedogenicity Low

Our Assessment

Valuable

Aminoethyl Propanediol is a valuable ingredient for precise pH adjustment and potential sebum management, suitable for all skin types due to its low irritancy and comedogenicity profile.


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