Diisopropanolamine
What is Diisopropanolamine?
Diisopropanolamine is a synthetic alkanolamine compound, chemically known as 2,2'-iminodi-1-propanol, with the formula C6H15NO2. Produced through the reaction of propylene oxide and ammonia, it appears as a colorless to pale yellow viscous liquid. In cosmetic products like shampoos, soaps, and creams, it functions mainly as a pH adjuster by neutralizing fatty acids and other acidic ingredients to reach an optimal pH range. As a buffering agent, it resists pH changes during storage or use, ensuring product consistency, ingredient stability, and compatibility with skin. Its alkaline nature allows precise control over formulation acidity, which supports overall efficacy without altering texture.
Roles in Formulation
This ingredient serves the following purposes in cosmetic formulations:
Benefits
Stabilizes pH for enhanced product performance and shelf life.
Supports preservative effectiveness by maintaining ideal pH conditions.
Promotes formulation stability and user-friendly feel on skin.
Who It's For
A quick guide for who this ingredient may suit (and who should be cautious).
| Who May Benefit | Who Should Avoid |
|---|---|
| Users of cleansing products like shampoos needing pH balance. | Those with sensitive or reactive skin prone to irritation. |
| Individuals with normal skin using buffered lotions or creams. | Individuals experiencing eye discomfort from alkaline ingredients. |
| People seeking stable, long-lasting cosmetic formulations. | Users concerned about high hazard-rated cosmetic components. |
Safety Notes
- Rated high concern by some databases due to potential skin and eye irritation.
- Safe for cosmetic use per reviews when formulated appropriately.
Frequently Asked Questions about Diisopropanolamine
What is diisopropanolamine used for in skincare?
It acts as a pH adjuster and buffering agent to maintain optimal product pH and stability.
Is diisopropanolamine irritating?
It has moderate irritation potential, especially for sensitive skin or eyes.
Does diisopropanolamine cause acne?
It has a comedogenic rating of 0, indicating low risk of pore clogging.