PEANUT OIL

Description: PEANUT OIL — EMOLLIENT.

All Functions: EMOLLIENT

Quick Facts:

• Category: emollient
• Also Known As: ARACHIS HYPOGAEA OIL
• Comedogenic Rating: 2/5

Proven Benefits At A Glance:

• Peanut oil contains proteins that can trigger allergic reactions in people with peanut allergies, but refined oils contain far fewer proteins than crude oils
• Ingesting refined peanut oil has not caused reactions in peanut-allergic individuals in clinical testing
• Applying peanut oil to damaged skin in animal studies showed signs of potential allergic sensitization
• Peanut oil contains antioxidant compounds like tocopherols (forms of vitamin E) and flavonoids
• The safety of topical peanut oil for people with peanut allergies remains uncertain and debated among experts

Safety tier is a starting heuristic from regulatory status and comedogenic rating, not a dermatological verdict — see our Terms for the full disclaimer. Research confidence reflects how many real cited studies back this ingredient, not the strength of their findings.

🧪 PEANUT OIL

PEANUT OIL

CAS Number: 8002-03-7

Also Known As: ARACHIS HYPOGAEA OIL

Category: emollient

Peanut oil. Potential allergen concern

PEANUT OIL is an emollient ingredient used in skincare formulations.

🌍 Regulatory Status

📊 Comedogenicity

2/5

📚 Research & Evidence

🔬 The Science

Peanut oil’s safety profile is complicated and depends heavily on whether you have a peanut allergy and how the oil was processed. Here’s what research actually shows:

#1: **Protein content varies dramatically by processing.** Crude peanut oils contain roughly 100 times more protein than refined peanut oils (J Eur Acad Dermatol Venereol, 2007). This matters because the major allergens in peanuts are proteins. When you refine oil, you’re removing most of these proteins—which is why refined peanut oil is less allergenic than crude oil. #2: **Ingesting refined peanut oil appears safe for peanut-allergic people.** In a clinical trial, ten people with documented peanut allergies—who had previously experienced serious reactions like swelling, vomiting, and bronchospasm—ingested refined peanut oil in quantities larger than what you’d encounter in food.

None had adverse reactions (J Allergy Clin Immunol, 1981). #3: **Topical application on compromised skin is less clear.** An animal study found that applying peanut oil to irritated skin in mice and then exposing them to peanut protein caused measurable immune responses, including increased immune cells and antibodies (Int Arch Allergy Immunol, 2019). However, this was an animal model, and whether this translates to humans remains unknown. #4: **Contact allergic reactions are rare but documented.** Contact urticaria (localized hives from skin contact) after topical peanut oil use has been described anecdotally, though it’s uncommon (J Eur Acad Dermatol Venereol, 2007).

One epidemiological study suggested an association between skincare products containing peanut oil and peanut allergy development, but this was a retrospective analysis without clear details about which products or how much was used. #5: **Peanut oil contains antioxidants.** The oil naturally contains tocopherols (vitamin E compounds) and flavonoids, whose levels are affected by how the peanuts are roasted (Molecules, 2022). These compounds are thought to have antioxidant properties, though the sources don’t specify skincare benefits. **The bottom line from research:** For people without peanut allergies, refined peanut oil appears to be a low-allergen ingredient. For people with peanut allergies, the data are genuinely conflicting—ingestion studies suggest it’s safe, but topical animal studies raise questions.

The European dermatology research suggests that for people with eczema (which disrupts skin barrier), the benefits of using peanut oil-containing products may outweigh speculative risks, but this conclusion is explicitly cautious.

💧 Skin Type Compatibility

Derived from this ingredient’s irritancy potential and comedogenicity rating against the needs of each skin type — e.g. oily and acne-prone skin are marked down for pore-clogging ingredients, sensitive skin for irritants. A starting heuristic, not a dermatological verdict.

⚠️ Don’t Combine With

🧴 Products Containing PEANUT OIL

📄 Related Research

Matched by search — not necessarily verified support for every statement above.

• Ring J et al. (2007). Allergy to peanut oil–clinically relevant?. J Eur Acad Dermatol Venereol.
• Taylor SL et al. (1981). Peanut oil is not allergenic to peanut-sensitive individuals. J Allergy Clin Immunol.
• Niu R et al. (2021). Composition and Rheological Properties of Peanut Oil Bodies from Aqueous Enzymatic Extraction. J Oleo Sci.
• Benor S et al. (2019). Epicutaneous Exposure to Peanut Oil Induces Systemic and Pulmonary Allergic Reaction in Mice. Int Arch Allergy Immunol.
• Yang KM et al. (2022). Chemical Properties of Peanut Oil from Arachis hypogaea L. ‘Tainan 14’ and Its Oxidized Volatile Formation. Molecules.