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CARAPA GUAIANENSIS OIL PEG-8 ESTERS.

Valuable CAS - / SKIN CONDITIONING - EMOLLIENT, SURFACTANT - EMULSIFYING

A sophisticated, water-dispersible derivative of Amazonian Andiroba oil that bridges the gap between deep lipid replenishment and lightweight cosmetic elegance. This bio-active ester provides the anti-inflammatory benefits of traditional rainforest medicine while offering the superior texture and stability required for modern precision skincare.

Emollient Surfactant Skin Conditioning Agent Anti-inflammatory Barrier Repair

Science

This ingredient functions as a multifunctional amphiphilic emollient. It delivers bioactive limonoids and triterpenes—specifically andirobin—to inhibit inflammatory pathways, effectively reducing redness and swelling. Simultaneously, its fatty acid profile of oleic and palmitic acids reinforces the lipid barrier, while the PEG-8 modification ensures optimal moisture retention and a non-greasy finish.


Research

High confidence
Effective range 0.5–5%
Optimal

3%

Key findings

  1. 01 In vitro trials utilizing 90–360 µg/mL concentrations demonstrated an 88.9% wound closure rate in keratinocytes, significantly outperforming the 38% control group.
  2. 02 Research indicates the oil esters effectively stimulate fibroblast proliferation and angiogenesis, accelerating dermal structural repair.

Transparency

Not commonly dusted
Min. effective
0.5%
Red flag below
0.2%

While often used as a secondary emulsifier at low levels, clinical benefits for wound healing and barrier repair are typically observed at 0.5% and above. Presence below 0.2% in a 'healing' balm may indicate it is used for label claims rather than therapeutic efficacy.


The Formula

Solubility
Both
Optimal pH 5 – 7
0 7 14

Stability

Displays excellent electrolyte tolerance and remains stable at a neutral pH (6.5) for over 120 days. It exhibits inverse solubility, becoming less soluble as temperatures rise.

Synergies

  • Ceramides
  • Panthenol
  • Hyaluronic Acid

Conflicts

  • Strong oxidizing agents
  • Formulations with pH below 3.0

Safety

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

The CIR Expert Panel and FDA (GRAS status) confirm its safety profile; it is non-irritating when formulated within standard parameters.


Your Skin

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

Our Assessment

Valuable

An exceptional multi-tasker that provides targeted anti-inflammatory support and barrier reinforcement with a sophisticated, inclusive skin feel.


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References