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Moumoujus

HYDROGENATED WALNUT SEED OIL.

Valuable / SKIN CONDITIONING, SKIN CONDITIONING - EMOLLIENT, VISCOSITY CONTROLLING

Hydrogenated Walnut Seed Oil functions as a superior emollient and skin-conditioning agent, meticulously engineered to form a protective occlusive barrier on the skin's surface. This process effectively minimizes transepidermal water loss, delivering sustained hydration and contributing to a visibly softer, more supple skin texture. Beyond its direct skin benefits, this ingredient precisely enhances product aesthetics by imparting a luxurious, silky feel and optimizing spreadability.

Summary

emollient skin conditioning viscosity controlling product stabilizer

Science

Mechanism of Action

This ingredient operates primarily by forming a physical occlusive layer on the stratum corneum, thereby reducing transepidermal water loss (TEWL) and maintaining optimal skin hydration. Its inherent emollient properties contribute to a smooth, soft skin feel. The hydrogenation process significantly boosts its oxidative stability, extending product shelf life and preventing degradation, while also modifying its texture to enhance formulation aesthetics and spreadability. While its non-hydrogenated precursor is rich in antioxidants such as Vitamin E, omega-3 fatty acids including linoleic and alpha-linolenic acid, and Vitamin B5 (panthenol)—compounds associated with anti-inflammatory and barrier-repairing effects—the primary benefits of the hydrogenated form in formulation are focused on emollience, conditioning, and textural enhancement.

Research

Clinical Evidence

Low confidence
Effective range N/A
Optimal

N/A

Transparency

Dusting Analysis

Not commonly dusted

The Formula

Formulation

Solubility
Oil
Optimal pH N/A
0 7 14

Stability

Hydrogenated oils demonstrate enhanced resistance to oxidation and degradation compared to their non-hydrogenated counterparts, substantially contributing to increased product stability and shelf life. While a study noted optimal stability for non-hydrogenated walnut oil emulsions at pH 6, this does not directly specify the optimal pH for Hydrogenated Walnut Seed Oil itself.

Safety

Safety Profile

CIR Status
Safe as used
Sensitization risk Low

The Cosmetic Ingredient Review (CIR) Expert Panel has assessed various plant-derived fatty acid oils, including non-hydrogenated Juglans Regia (Walnut) Seed Oil, concluding they are generally 'safe as used' when comprehensive fatty acid profiles are available. Hydrogenated derivatives of other botanical oils are also regarded as safe for cosmetic applications. While a precise maximum concentration for Hydrogenated Walnut Seed Oil is not established, analogous hydrogenated oils have been deemed safe for use up to 100% in non-irritating formulations. It is important to note that the FDA's revocation of 'Generally Recognized As Safe' (GRAS) status for partially hydrogenated oils (PHOs) pertains exclusively to food products due to trans fat content, and does not extend to fully hydrogenated oils or cosmetic applications.

Your Skin

Skin Compatibility

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

Our Assessment

Verdict

Valuable

Hydrogenated Walnut Seed Oil is a valuable ingredient for its precise emollient properties, ability to enhance product texture and stability, and its general safety profile, making it suitable for a broad range of skincare formulations targeting hydration and skin conditioning.

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References

Sources