What Is C30-38 Olefin/Isopropyl Maleate/Ma Copolymer?
C30-38 Olefin/Isopropyl Maleate/MA Copolymer is a large-molecule ingredient created by linking together long-chain hydrocarbons (C30-38 olefins) with maleic anhydride and isopropyl maleate. The end result is a flexible polymer that behaves a bit like a liquid wax. Because the building blocks come from highly refined petroleum fractions, the material is free of impurities that could irritate skin. The idea of blending maleic anhydride with long-chain olefins first appeared in the late 1990s as chemists looked for ways to replace animal-derived waxes in personal care. Over the years improvements in catalyst technology have made the process more efficient so the polymer can be produced at cosmetic grade and at scale.
Manufacturing starts with cracking heavy petroleum into specific C30-38 olefins. These olefins are purified then reacted with maleic anhydride under heat and pressure, creating a backbone with alternating hydrophobic and mildly polar sections. A small amount of isopropyl alcohol is added to convert some of the maleic anhydride units into isopropyl maleate which helps fine-tune the texture. The finished copolymer is filtered, cooled and flaked or supplied as a soft paste ready for formulation.
You will most often see this ingredient in cleansing balms, thick creamy cleansers, makeup removers, sunscreen sticks, solid moisturizers, high-viscosity serums, hair styling pastes and some long-wear color cosmetics. Its wax-like feel lets brands create rich textures without heavy oils while its mildness suits products aimed at sensitive skin.
C30-38 Olefin/Isopropyl Maleate/Ma Copolymer’s Cosmetic Benefits/Uses
This versatile polymer supports both the feel and performance of a formula in several ways:
- Cleansing – binds to oils and makeup so they rinse away easily, giving gentle yet effective cleansing without stripping skin
- Emulsifying – helps water and oil hold together which stabilizes creams and lotions and keeps them smooth over time
- Viscosity controlling – thickens formulas, allowing brands to create balms, sticks or rich creams that stay put and feel luxurious
Who Can Use C30-38 Olefin/Isopropyl Maleate/Ma Copolymer
Thanks to its large molecular size and non-ionic character this copolymer sits on the skin surface rather than penetrating deeply so it is generally well tolerated by dry, normal, combination and sensitive skin. Oily or very acne-prone users can still benefit from its mild cleansing action but may prefer lightweight formulas where it is used at lower levels because heavy balm textures can feel too occlusive on already oily skin.
The material is synthesized from petroleum-derived hydrocarbons and does not involve any animal sourced feedstocks or by-products which makes it suitable for both vegans and vegetarians.
Current safety assessments show no reproductive toxicity which means products containing this ingredient are usually considered safe for use during pregnancy or breastfeeding. This is not medical advice and anyone who is pregnant or nursing should have their healthcare professional review any skincare product before regular use.
C30-38 Olefin/Isopropyl Maleate/MA Copolymer is not known to make skin more sensitive to sunlight so normal daytime sun protection habits are all that is required.
Potential Side Effects/Adverse Reactions
Individual responses to topical ingredients differ so the effects listed below are only potential outcomes. When formulated correctly most people will not experience any problems.
- Mild transient irritation especially if applied to already compromised or broken skin
- Contact dermatitis in rare cases of true ingredient allergy
- Acne flare ups in some users when the ingredient is included in very rich balm or stick formulas that can trap sebum
- Eye stinging or blurred vision if cleansing products containing the polymer are not thoroughly rinsed from the eye area
If any discomfort swelling or persistent redness develops stop using the product and consult a qualified medical professional.
Comedogenic Rating
Rating: 1 / 5 – C30-38 Olefin/Isopropyl Maleate/MA Copolymer is a very large inert molecule that stays on the skin surface and is chemically stable so it does not interact with sebum or clog pores on its own. Its low polarity keeps it from swelling inside follicular openings which further limits the risk of blockage. The only situations where breakouts may appear are formulas that are intentionally very heavy or occlusive, such as solid cleansing balms and sticks, where the overall product matrix can trap oil and dead cells.
Most people who are prone to acne can use products containing this ingredient without issue as long as the rest of the formula is lightweight and non greasy.
Because it has a wax-like feel the final texture of the finished product plays a bigger role in pore blockage risk than the polymer itself.
Summary
C30-38 Olefin/Isopropyl Maleate/MA Copolymer thickens, stabilizes and gently cleanses. Its long hydrocarbon chains give a buttery feel that captures oils and makeup for easy rinse off cleansing, while the alternating polar segments help water and oil mix so emulsions stay smooth. The rigid yet flexible backbone also bumps up viscosity so formulators can create balms, sticks or rich creams without relying on heavy plant waxes.
The polymer is popular in modern cleansing balms, solid sunscreens and long wear makeup but it is still a niche choice compared with classic silicones or beeswax because it is newer and costs more to produce.
Current safety data show it is non toxic, non sensitizing and safe for use during pregnancy or on sensitive skin. As with any cosmetic ingredient it is always smartest to patch test a new product first so you can check how your own skin responds.