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OCTADECYL DI-T-BUTYL-4-HYDROXYHYDROCINNAMATE.

Valuable CAS 2082-79-3 / ANTIOXIDANT

This sterically hindered phenolic antioxidant primarily functions to stabilize cosmetic formulations against oxidative degradation. On the skin, it provides protective benefits by neutralizing environmental oxidative stress, supporting a healthier complexion and preserving other active ingredients.

Antioxidant Stabilizer

Science

This compound acts as a potent, sterically hindered phenolic antioxidant. Within formulations, it inhibits oxygen-promoted reactions, effectively preventing thermo-oxidative degradation and maintaining product integrity. Applied topically, it helps to neutralize oxidative stress induced by external aggressors such as UV radiation and pollution. This activity contributes to a healthier skin appearance, potentially mitigating concerns like premature fine lines, dryness, and hyperpigmentation, while also safeguarding the stability and efficacy of other vital skincare actives like vitamins A and E.


Research

Low confidence
Effective range N/A
Optimal

N/A


Transparency

Not commonly dusted

The Formula

Solubility
Oil
Optimal pH N/A
0 7 14

Stability

This ingredient is recognized as an effective, non-discoloring stabilizer, offering excellent long-term heat stability by preventing thermo-oxidative degradation. It is noted for being odorless, tasteless, and possessing low volatility, which contributes to its formulation versatility.

Synergies

  • Vitamin A
  • Vitamin E

Safety

CIR Status
Not reviewed
Sensitization risk Low

This substance holds FDA Food Contact Substance (FCS) approval for use in packaging in both the EU and US, indicating a favorable general safety profile. EPA evaluations for animal ear tags highlighted moderate acute dermal toxicity (LD50 > 2000 mg/kg) and slight dermal irritation at 0.5% concentrations, though overall exposure concerns were low due to poor absorption. Crucially, it has not been found to be mutagenic or genotoxic. EWG Skin Deep® also designates it with low concern across multiple toxicity categories, including cancer and reproductive health.


Your Skin

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

Our Assessment

Valuable

A valuable antioxidant that significantly enhances formula stability and offers skin protection against environmental oxidative stress, with a favorable safety profile.


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