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Do these chemicals emit formaldehyde gas when heated?

Hey there. 

I'm just wanting some clarification on a few chemicals that were included in a hair straightening solution I had a reaction to recently. I've researched a few and found some sources that state that they do produce formaldehyde gas when heated. (I heated my hair with a hairdryer as well as a hair straightener in the process) Just want to know if that is in fact true from a chemistry standpoint. The ingredients are: 

- Cyclomethicone

- Glyoxylic acid 


Thanks very much 

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