Absolutely YES!
Many tungsten and tungsten carbide rings have Cobalt in them. The alloy containing Cobalt is easier to procure and rings containing Cobalt are commonly sold. However, rings containing Cobalt will develop a negative reaction to your skin. After a short period, the ring will develop oxidation spots that cannot be removed or polished out. This is due to the Cobalt reacting to the human body in which many people's skin can be irritated causing itching. You can easily prevent this from happening by purchasing one of our Cobalt-free, hypoallergenic, Tungsten Forever Carbide rings.
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