Although many people claim polymer clay is safe they cannot claim it is non toxic because it is made with certain chemicals. It is probably best for people with asthma to stay clear of polymer clay or at least avoid burning it in the oven.
Cold Porcelain Clay
For many, cold porcelain clay is becoming the more popular choice. It is just like polymer clay in some ways but much better with added benefits. Cold Porcelain air dries, so you don’t have to put it in oven or worry about burning your clay. Also this is a non toxic clay made with natural ingredients. One of the greatest benefits over polymer clay is that cold porcelain can be stretched into thin pieces and will not break where as polymer clay will break if you try to create thin fragile pieces such as petals. Weither it’s polymer clay you like or cold porcelain, both clay can produce gorgeous creations, but for many the new trend is Cold Porcelain Clay.