How carcinogenic are neoprene coated dumbbells?
I have read in many places online that neoprene coated dumbbells may cause cancer. Just how carcinogenic are they? Would normal use of said dumbbells (say less than one hour per day) be of any risk?
Example:
I just bought a 32 lb neoprene dumbbell set and took it out the package and noticed a warning on the bottom:
"This product contains one or more chemicals known to the state of California to cause cancer, birth defects and other reproductive harm."
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The chemical name for neoprene is polychloroprene and is a polymer of chloroprene. Chloroprene is suspected of causing cancer, but that does not mean that its polymer causes cancer. For instance, ethylene is a gas used to ripen, among other things, bananas, but its polymer--poylyethylene--is the basis of many plastics; ethylene and polyethylene are nothing alike, just like chloroprene and polychloroprene.If some substance does not cause cancer, it's highly unlikely that you will find literature that expressly states that. That example you cite is most likely referring to the chloroprene in neoprene. However, that chloroprene is tightly locked up inside its polymer. It would take a strong chemical (stronger that your sweat) to unbind the chloroprene in neoprene.
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