Urea is vegan in the vast majority of cases. The urea found in skincare products, fertilizers, and pharmaceutical creams is almost always synthetically produced from ammonia and carbon dioxide, with no animal-derived ingredients involved. That said, urea does exist naturally in mammalian urine, which is where the confusion comes from, so understanding how modern urea is made clears up the question quickly.
How Synthetic Urea Is Made
Commercial urea production is a straightforward chemical process. Ammonia and carbon dioxide are reacted together to first form a compound called ammonium carbamate, which then breaks down into urea and water. The raw materials come from industrial gas sources, not from animals. This process has been the standard since the early 20th century and produces the vast majority of the world’s urea supply, which runs into hundreds of millions of tons annually, mostly for use as fertilizer.
The synthetic version is chemically identical to the urea your own kidneys produce as a waste product. Friedrich Wöhler first synthesized it in a lab in 1828, making it one of the earliest organic compounds ever created without a living organism. Today there is simply no commercial reason to extract urea from animal sources when synthetic production is cheap and scalable.
Urea in Skincare Products
Urea shows up in moisturizers, foot creams, and treatments for dry or rough skin because it helps the outer layer of skin hold onto water. It also gently loosens dead skin cells at higher concentrations. The urea in these products is synthetic. Pharmaceutical-grade urea sold by major chemical suppliers like Sigma-Aldrich is explicitly listed as “biological source: synthetic,” and this is the type used in dermatology creams and ointments.
You’ll also encounter hydroxyethyl urea on ingredient lists, which is a derivative made by reacting synthetic urea with ethanolamine (a compound derived from ethylene oxide and ammonia). The entire manufacturing chain for hydroxyethyl urea is synthetic as well, making it compatible with a vegan lifestyle. If a product simply lists “urea” or “hydroxyethyl urea” without further qualifiers, you can be confident the ingredient itself is not animal-derived.
When Urea Might Not Be Vegan
The one scenario where urea raises a legitimate concern is in niche or traditional products that use animal urine directly. Some older agricultural practices and a handful of traditional remedies have historically used urine-derived urea. This is rare in modern commercial products, but if you’re buying from a small-batch or artisanal producer that specifically markets “natural” urea sourced from animals, that would not be vegan.
It’s also worth noting that while the urea molecule itself is vegan, the finished product it appears in might not be. A moisturizer could contain synthetic urea alongside beeswax, lanolin, or other animal-derived ingredients. Checking the full ingredient list rather than focusing on urea alone gives you a clearer picture.
Urea in Fertilizers and Other Uses
If your concern extends beyond personal care, the same answer applies. Urea fertilizer pellets are produced synthetically on a massive industrial scale. The ammonia used as a starting material typically comes from natural gas (methane reacted with nitrogen from the air), not from any animal source. Urea is also used in diesel exhaust fluid, adhesives, and certain animal feed supplements, all produced through the same synthetic route.
Some vegans draw a distinction between “vegan ingredient” and “vegan product” when it comes to fertilizers, since urea fertilizer is heavily used in conventional agriculture that may involve other non-vegan practices. But the urea compound itself contains no animal inputs.
How to Verify a Product’s Urea Source
For most commercially available products, synthetic urea is the default. If you want extra certainty, look for products carrying a certified vegan label from organizations like The Vegan Society or PETA’s cruelty-free certification. You can also check with the manufacturer directly. Any reputable skincare or pharmaceutical company will confirm their urea is synthetically derived, because sourcing it any other way would be more expensive and less practical.