SKYN condoms are made of polyisoprene, a synthetic version of the rubber found in nature. Unlike standard condoms, which use natural rubber latex harvested from trees, SKYN’s material is produced in a lab to closely mimic latex’s stretch and strength while eliminating the proteins that trigger latex allergies.
What Polyisoprene Actually Is
Natural rubber latex comes from the Hevea brasiliensis tree and gets its unique flexibility from its molecular structure: long chains made almost entirely of a repeating unit called cis-1,4 isoprene. Polyisoprene is a synthetic polymer built from the same isoprene building block, arranged in the same pattern. The result is a material that behaves like natural rubber in terms of stretch, softness, and durability, but is manufactured without the tree-derived proteins responsible for allergic reactions.
The manufacturing process uses a technique called dip-forming, where a mold is dipped into a liquid emulsion of synthetic polyisoprene latex. The material is then vulcanized (chemically crosslinked) to give it the elasticity and tear resistance needed in a condom. This is essentially the same process used for traditional latex condoms, just with a different starting material.
Why It Matters for Latex Allergies
The key difference between SKYN condoms and traditional latex condoms isn’t how they feel or perform. It’s what’s missing. Natural rubber latex contains proteins that can cause Type I allergic reactions, ranging from skin irritation to more serious symptoms. Polyisoprene is synthesized without those proteins, making it safe for people with latex allergies.
SKYN’s manufacturer takes this a step further by producing its polyisoprene condoms in a separate facility from its latex-based brands, preventing any cross-contamination during production.
How Polyisoprene Compares to Other Non-Latex Options
SKYN isn’t the only non-latex condom on the market. Polyurethane condoms are another alternative, but the two materials feel quite different in use.
- Polyisoprene (SKYN): Stretchy and elastic, with a feel, durability, and fit closer to traditional latex. It conforms to the body more naturally because it has significant give.
- Polyurethane: Thinner and less elastic. Polyurethane conducts heat better, which some people prefer for sensation, but the reduced stretch means these condoms tend to fit looser and can slip more easily. They’re also typically more expensive.
For most people switching away from latex, polyisoprene is the closer match to what they’re used to. The stretch and snug fit feel familiar, which is a big part of why SKYN became one of the most popular condom brands overall, not just among people avoiding latex.
Strength and Safety Standards
Polyisoprene condoms are classified as Class II medical devices by the FDA and must meet rigorous testing requirements before reaching shelves. SKYN condoms are tested against both ISO 23409 (the international standard for condoms made from synthetic materials) and the FDA’s own guidance for non-latex condoms.
Testing includes burst volume, burst pressure, tensile strength, elongation, force at break, and tear resistance. FDA clearance documents confirm that polyisoprene condoms demonstrate comparable physical performance to latex condoms across all of these measures. In practical terms, a polyisoprene condom is no more likely to break or fail than a latex one when used correctly.
Lubricant Compatibility
Like latex, polyisoprene is a rubber-based material, and that means the same lubricant rules apply. Water-based and silicone-based lubricants are both compatible with SKYN condoms. Oil-based products, including body lotion, baby oil, coconut oil, petroleum jelly, and butter, will degrade the material and can cause the condom to break.
This is one area where polyurethane condoms have an advantage: they’re compatible with oil-based lubricants. But for SKYN and any other polyisoprene condom, stick to water-based or silicone-based options.