Yes. It’s called styrene-butadiene rubber because it’s produced from the petroleum compounds styrene and butadiene rather than natural ingredients. However, this version of latex is not as durable or elastic as natural latex, meaning there are a lot of rubber-based products out there that cannot be produced without the nature-made stuff. Synthetic latex also has a much higher VOC content than natural latex, meaning a mattress made of this stuff is not going to be as safe as an organic natural latex mattress. As with most “alternative” manufacturing materials, synthetic latex is a far cry from its natural counterpart. There’s just no substitute for the real deal.