SKYN condoms are made of polyisoprene, a synthetic version of natural rubber that’s created in a laboratory rather than harvested from rubber trees. This distinction matters because polyisoprene doesn’t contain the proteins found in natural latex, the compounds responsible for latex allergies in up to 7.6% of the general population. The result is a condom that feels similar to latex but is safe for people with latex sensitivities.
What Polyisoprene Actually Is
Natural rubber latex comes from the sap of rubber trees. At a molecular level, the stretchy component of that sap is polyisoprene, a long-chain polymer. Scientists figured out how to build the same polymer synthetically, producing a material with nearly identical stretch and strength but without the tree-derived proteins that trigger allergic reactions.
SKYN’s manufacturer calls their specific version “SKYNFEEL polyisoprene.” It’s lab-created from start to finish, so there’s no contact with natural rubber at any point in production. This makes it fundamentally different from standard latex condoms, which are made by processing raw tree sap, and different from polyurethane condoms, which use an entirely separate type of plastic.
How SKYN Condoms Are Manufactured
The production process is temperature-sensitive and somewhat unusual. According to patent documentation for synthetic polyisoprene condoms, the liquid latex is kept cool, around 15°C (59°F), throughout most of manufacturing. This prevents the material from prematurely hardening before it’s shaped.
The cooled latex is first blended with compounding ingredients, then left to mature for 24 to 48 hours while chemical bonds slowly develop within the material. After maturing, the latex moves to dipping tanks where condom-shaped molds (called mandrels) are dipped into the liquid twice. Between dips, the molds pass through a drying oven and then a refrigeration unit to cool them back down before the second coat. After the second dip, the thin films are dried and heated to about 120°C to 130°C for roughly 10 minutes, a step called vulcanization that locks in the material’s elasticity and strength.
How It Compares to Latex and Polyurethane
Polyisoprene sits between latex and polyurethane in terms of feel. It stretches and fits snugly like latex, which many users prefer over the looser, baggier feel of polyurethane condoms. Polyurethane is thinner and transmits body heat more readily, which can increase sensation, but it also comes with trade-offs in fit and durability.
A crossover study published in the New England Journal of Medicine compared polyurethane and latex condoms among 360 couples. Polyurethane condoms broke 7% of the time versus 1% for latex, and slipped during use or withdrawal 3.6% of the time compared to 0.6% for latex. Polyisoprene wasn’t tested in that particular study, but its stretchy, form-fitting properties are closer to latex than to polyurethane, which is part of why many people find it a more reliable non-latex option.
Lubricant and Compatibility
SKYN condoms come pre-lubricated. Like latex, polyisoprene is compatible with water-based and silicone-based lubricants. Oil-based lubricants (coconut oil, petroleum jelly, body lotions) can degrade polyisoprene just as they degrade latex, so those should be avoided.
FDA Clearance and Intended Use
SKYN Original condoms have received FDA 510(k) clearance as a synthetic condom classified under obstetrics and gynecology devices. They’re cleared for both pregnancy prevention and reducing the risk of sexually transmitted infections, the same intended uses as standard latex condoms. The FDA found them “substantially equivalent” to existing approved condoms in terms of safety and effectiveness.
Who Benefits Most From Polyisoprene
The primary audience is anyone with a latex allergy or sensitivity. Symptoms of a latex allergy range from mild (itching, redness, or hives after contact) to severe (swelling, difficulty breathing). If you’ve experienced irritation with standard condoms and aren’t sure whether it’s the latex or the lubricant causing the problem, switching to polyisoprene eliminates one variable.
Beyond allergies, some people simply prefer the feel. Polyisoprene is softer and less rubbery-smelling than standard latex. It doesn’t have the plasticky quality of polyurethane. For people who find traditional condoms uncomfortable or distracting, the material difference can be noticeable enough to matter.