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ACROLEIN.

Avoid CAS 107-02-8 / NOT REPORTED

Acrolein is a highly reactive, toxic unsaturated aldehyde. It is primarily known as a harmful byproduct of lipid peroxidation in the skin or as an environmental pollutant, such as in cigarette smoke.

Environmental pollutant Byproduct of lipid peroxidation

Science

As a potent electrophile, acrolein reacts with cellular nucleophiles like cysteine, histidine, and lysine. This action triggers oxidative stress, depletes glutathione, and damages proteins (e.g., collagen/elastin) through carbonylation, leading to cellular dysfunction and inflammation.


Research

High confidence
Effective range N/A
Optimal

0%

Key findings

  1. 01 Exposure to 0.25 ppm causes marked irritation to human mucous membranes (eyes, nose) within 5 minutes.
  2. 02 In vitro studies show 10-60 µM induces significant oxidative stress, glutathione depletion, and protein carbonylation in human keratinocytes and fibroblasts.

Transparency

Not commonly dusted

The Formula

Solubility
Water
Optimal pH ≤6.5
0 7 14

Stability

Acrolein is highly unstable and readily polymerizes (sometimes violently) when exposed to light, strong acids, or strong alkalis, requiring inhibitors like hydroquinone for stability.

Conflicts

  • Strong acids
  • Strong bases
  • Oxidizing agents
  • Amines

Safety

CIR Status
Not reviewed
Max tested
0%%
Sensitization risk High

Acrolein itself is not used as an intentional ingredient in skincare due to its significant toxicity and corrosivity. While acrolein-containing copolymers are reviewed, pure acrolein is not.


Your Skin

No Normal
No Dry
No Oily
No Sensitive
Irritancy High
Comedogenicity Unknown

Our Assessment

Avoid

Due to its extreme toxicity, corrosivity, and potent cellular damage, acrolein should be strictly avoided in skincare formulations.


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