Arachis hypogaea (Peanut) Oil is a refined fixed oil derived from the kernels of Arachis hypogaea, notable for its balance of oleic (~57%), linoleic (~26%), and palmitic acids, plus vitamin E and antioxidants. In skincare, it functions as an emollient and skin-conditioning agent, helping to soften and smooth the epidermis while reinforcing barrier function. Its antioxidant activity contributes to reduced oxidative stress and photodamage, promoting a more youthful and resilient complexion.
In hair care contexts, peanut oil is valued for its ability to moisturize and nourish both hair and scalp. It supports elastin integrity, improves texture and manageability, tames frizz, and can even strengthen hair strands. Anecdotal and emerging data suggest it may assist with scalp conditions like dandruff and dryness by replenishing lipids and hydration, still to be evaluated.
Quick Insights
Ingredient Rating:
GOOD
Type of Ingredient:
Moisturizer, Emollient, Texture Enhancer, Conditioner, Antioxidant, Soother and Barrier Support
Intended Function:
To deeply hydrate and nourish skin and hair, improve texture and elasticity, protect against environmental damage, and support scalp and barrier integrity.
Common Applications:
Utilized in formulations such as moisturizers, body lotions, massage oils, facial oils, lip balms, hair oils, conditioning masks, and scalp treatments for dry or damaged hair.
Target Audience:
Ideal for formulations aimed at clients with dry, sensitive, or mature skin; as well as haircare designed for brittle, frizzy, or coarse hair requiring conditioning and hydration.
Also Known As:
Peanut Oil, Arachis Oil, Groundnut Oil, Earthnut Oil, Katchung Oil.
Safety Analysis
General Safety: Refined cosmetic-grade peanut oil is broadly regarded as safe. It has been classified as non-irritating in human and animal testing and, in refined form, proteins and aflatoxins are largely undetectable.
Allergy Considerations: Despite refinement, trace allergens may persist, posing sensitization risks—especially in products for infants or individuals with peanut allergies. The SCCS has raised concerns about potential sensitization via topical exposure in young children.
Formulation Notes: Peanut Oil may enhance penetration of other actives; formulators should ensure co-ingredients’ safety assessments consider increased bioavailability.
Stability: The oil’s unsaturated fatty acids may oxidize; use antioxidants and air-tight, opaque packaging to preserve quality.
References
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