What Is Hydrogenated Brassica Campestris/Aleurites Fordii Oil Copolymer?
Hydrogenated Brassica Campestris/Aleurites Fordii Oil Copolymer is a plant-derived ingredient made by linking together the fatty parts of two oils: rapeseed oil from the Brassica campestris plant and tung oil from the Aleurites fordii tree. After these oils are hydrogenated to make them more stable, their building blocks are combined into a large, wax-like molecule called a copolymer.
The idea of using plant oils in beauty products has been around for centuries, but scientists only began turning them into copolymers in the late 20th century when the industry looked for natural yet long-lasting film formers. By blending rapeseed and tung oils, formulators found a way to create a smooth, flexible layer on skin without relying on petroleum-based ingredients.
Manufacturing starts with cleaning and refining each oil. Hydrogen is then added under controlled heat and pressure, which saturates the oils and keeps them from going rancid. The hydrogenated oils are reacted together in the presence of a catalyst to form the final copolymer, which is filtered, cooled and ground into a soft, easy-to-use powder or flakes.
You will most often see Hydrogenated Brassica Campestris/Aleurites Fordii Oil Copolymer in makeup primers, long-wear foundations, lipsticks, waterproof mascaras, moisturizers, hand creams, solid balms and face masks where a light yet durable film is desired.
Hydrogenated Brassica Campestris/Aleurites Fordii Oil Copolymer’s Cosmetic Benefits/Uses
This ingredient earns its place in formulas thanks to the following benefits
- Film Forming: It lays down a breathable shield that helps makeup stay put, boosts water resistance and locks active ingredients onto the skin surface so they can work longer
- Skin Conditioning: The smooth waxy texture softens rough spots, gives products a silky glide and reduces moisture loss for a comfortable finish
Who Can Use Hydrogenated Brassica Campestris/Aleurites Fordii Oil Copolymer
This plant-derived copolymer is generally well tolerated by all skin types, including dry, normal, combination and oily skin. Its lightweight film helps hold moisture without leaving a heavy residue, so even those prone to shine usually find it comfortable. Sensitive skin users typically do fine because the ingredient is inert and has no added fragrance, though individual sensitivities can still occur.
Because the copolymer is sourced from rapeseed and tung tree oils and contains no animal-derived materials, it is suitable for vegans and vegetarians.
Current research shows no known issues for women who are pregnant or breastfeeding when this ingredient is applied topically in cosmetic amounts. This is not medical advice; anyone who is expecting or nursing should discuss any new skincare product with a healthcare professional to be safe.
The copolymer does not make skin more prone to sunburn and is considered non-photosensitising. It can be used in daytime formulas alongside sunscreen without concern. There are no known ingredient conflicts, so it pairs well with common actives such as retinoids, vitamin C and exfoliating acids.
Potential Side Effects/Adverse Reactions
Responses to topical Hydrogenated Brassica Campestris/Aleurites Fordii Oil Copolymer vary from person to person. The points below represent potential side effects, but most users experience none of them when the ingredient is properly formulated.
- Mild redness or irritation in very sensitive skin
- Transient itching if applied over broken or compromised skin
- Rare clogged pores in individuals who are highly prone to comedones
If any discomfort or visible reaction develops, discontinue use and consult a healthcare professional for guidance.
Comedogenic Rating
Rating: 1/5. Although the copolymer is created from plant oils, the hydrogenation and polymerisation steps turn the original fatty acids into a large, inert molecule that sits on top of skin rather than seeping into pores. Limited industry data plus user reports show very few cases of blocked pores, so the risk is considered low. Because it forms a light breathable film instead of a greasy layer most acne-prone individuals tolerate it without extra breakouts. Those with extremely reactive or congestion-prone skin may still prefer to monitor how their skin responds, particularly if the product also contains heavier oils or butters.
Summary
Hydrogenated Brassica Campestris/Aleurites Fordii Oil Copolymer is mainly added to cosmetics to create a smooth flexible film that boosts wear time, water resistance and overall skin comfort. Its wax-like texture also conditions skin by softening rough patches and reducing moisture loss.
While not as famous as silicones or traditional waxes it has gained steady popularity in natural-leaning makeup, tinted moisturisers, solid balms and waterproof mascaras where brands want plant-sourced performance without petrolatum.
Safety studies and real-world use show the ingredient is non-irritating non-sensitising and carries a very low comedogenic risk. As with any new product it is still wise to perform a small patch test to confirm personal tolerance before full-face use.