Hydrogenated Peanut Oil: What Is It, Cosmetic Uses, Benefits & Side Effects

Curious about this ingredient? In this article we're explaining exactly what it is and why it's used within cosmetic formulations.
Updated on: June 27, 2025
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We verify all information on this page using publicly available nomenclature standards from The Personal Care Products Council (PCPC), the European Commission's CosIng database and documentation provided directly by ingredient manufacturers. Our analysis is based on technical data from these sources to ensure accuracy and reliability.

What Is Hydrogenated Peanut Oil?

Hydrogenated peanut oil is peanut oil that has been treated with hydrogen gas to convert some of its natural unsaturated fats into saturated fats. This process makes the oil more solid at room temperature, slower to spoil and better able to hold its shape in creams or balms. The base oil comes from peanuts, a legume rich in fatty acids such as oleic and linoleic acid. When these acids are partially saturated they become more stable, giving the finished ingredient a longer shelf life.

Peanut oil itself has been used for centuries in cooking and traditional skin care. In the mid 20th century chemists began hydrogenating plant oils for food and later noticed that the firmer texture was also useful in cosmetics. Today hydrogenated peanut oil appears in moisturizers, body butters, lip balms, hand creams, solid cleansing bars and some anti-aging formulations. Its stable texture helps products stay smooth, resist melting in warm climates and feel rich when applied.

Hydrogenated Peanut Oil’s Cosmetic Benefits/Uses

This ingredient brings several practical benefits to a formula thanks to the way it behaves on skin and within a product.

  • Skin conditioning: Forms a soft film that helps skin feel supple and cared for
  • Emollient: Fills tiny gaps in the outer skin layer to smooth roughness and reduce flaking
  • Emulsifying: Helps water and oil blend evenly so lotions stay mixed and stable
  • Viscosity controlling: Thickens or firms up a product so it has the right body, preventing runny textures

Who Can Use Hydrogenated Peanut Oil

This ingredient suits most skin types, especially normal, dry and mature skin, because it provides lasting softness and helps lock in moisture. Those with very oily or acne-prone skin may prefer lighter oils since hydrogenated peanut oil can feel rich and may contribute to congestion for some users.

Hydrogenated peanut oil is plant derived, so it is appropriate for vegans and vegetarians as it contains no animal by-products.

Topical use is generally viewed as safe for women who are pregnant or breastfeeding. This is not medical advice and anyone who is expecting or nursing should consult a healthcare professional before adding new skincare products to their routine.

The ingredient does not increase photosensitivity so it does not make skin more prone to sunburn. One consideration is peanut allergy; individuals with a known peanut allergy should avoid products containing this oil or speak with a physician first.

Potential Side Effects/Adverse Reactions

Reactions to hydrogenated peanut oil vary from person to person. The following are potential side effects yet most users will not experience them when the ingredient is formulated and used correctly.

  • Allergic contact dermatitis in people with peanut allergy
  • Clogged pores or breakouts on acne-prone skin
  • Mild irritation such as redness or itching in sensitive individuals
  • Spoilage-related odor or texture changes if a product is stored improperly

If you notice irritation, swelling or any persistent discomfort stop using the product and seek medical advice.

Comedogenic Rating

Rating: 2 / 5

Hydrogenated peanut oil is richer and more occlusive than many lightweight plant oils but it still absorbs reasonably well without leaving a heavy residue. Its moderate level of saturated fatty acids can sit on the skin’s surface and occasionally trap debris yet it does not clog pores as readily as highly comedogenic butters or waxes. For most people it scores a 2, which means it is unlikely to cause breakouts except in skin that is very acne prone or already congested.

Those who are prone to acne or frequent breakouts might prefer lighter oils yet many can still use formulas containing a small percentage of hydrogenated peanut oil without problems.

Keep in mind that comedogenicity often depends on the complete formula, the percentage used and each person’s unique skin chemistry so results can vary.

Summary

Hydrogenated peanut oil conditions skin, acts as an emollient smoothing rough patches, helps water and oil stay blended in lotions and thickens products so they feel rich rather than runny. It does all this thanks to its balanced mix of fatty acids, which form a soft film that locks in moisture while its semi solid texture lends body to creams and balms.

The ingredient is fairly common in lip care, body butters and solid cleansers but it is not among the most mainstream oils because manufacturers sometimes favor alternatives that sidestep peanut allergy concerns.

Overall it is considered safe for topical use with the main caveats being potential allergies and a moderate likelihood of pore clogging for very oily skin. As with any new skincare product it is wise to do a quick patch test on a small area before full use just to be on the safe side.

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