Can silicone in hair products plasticise the hair?

I am attempting to remove years of black hair dye and came across Scott Cornwall and his product Decolour. He makes a claim that if it doesn't work likely cause is hair plasticised due to using heat over 220 deg cel. Quote "If you use heated styling products such as hot irons you can seal this build up onto the hair, gluing down the cuticle layer, trapping in the silicone and making it difficult to remove.

In some instances a straightening iron can reach such a high temperature that the silicone molecule actually reaches boiling point and melts onto the hair shaft."
- See more at:

And Mandy Baldwin for colourB4 states "
However, if the hair is regularly subjected to heated appliances such as tongs and irons over 230 degrees the silicone can reach boiling point and melt. The silicone then re-hardens and encases the hair in a plastic shell."

Is there scientific merit to this? Can silicone boil, coat the hair shaft and remain there plasticised for ever?
Thank you :)


  • Wow, I thought I'd heard it all by now but I've never heard the melting silicone hypothesis before. It doesn't sound right to me (because we would have seen evidence of this in the lab if it were true) but I'll take a look into it and see if I can find the facts. 

    I think this'll make a good discussion for our podcast. Is there any chance you'd be interested in recording an audio version of your question and emailing it to me at 

    If not, I totally understand. Either way, thanks for your participation in our Forum!
  • Sure I would, how do I do that? any particular program you prefer me to use or just the standard voice file in the apple app?
  • Sorry scrap that question, found how to do it is nice detail from an earlier post, will do one tomorrow and email it, thank you again!
  • Plastification is one of the most beautiful forms of preservation of biological life forms... that being said, if silicon could do that to hair... it would most certainly do that to the rest of ya... and yet it doesn't. The answer is no. Kudos for knowing what plastification is!!!! <333
  • Hold on, this excited me, I'm going to link!

    I think the MAIN issue with this never working in a bathroom like setting, is the lack of a forced vacuum like setting. I had to double check with google, to make sure, but that kind of hinges it, the transferring method of the polymers, (or hypothetical silicone) and organic material, happening within the cadaver, (or in your case, to your body your hypothetical bathroom shower.) One's being forced in through pressurized vacuum, as the other vacates through evaporation. 

    Although most bathroom allow for evaporations, and have fans, I don't quite think that's the same allowable environment for this chemical process tor transpire.

    NEAT thought though! Outside the box thinking, I like it. it's something I would have asked had I not known a mortician. 

  • Oh, Just read randy's message... kinda stomped on that, it was going to be a thing, just delete my posts, you can totally still use her question!!!
  • Wait, on second thought, the man in the OP's post meant silicone can laminate at high temperatures? Heat is only one of three methods used in the last stage, which is only for curing what actually has already plasticized a specimen. But if he means lamination... That could be valid I suppose. Something relatively thin sandwiched between some variety of polymer sheets, and pressed at high temperatures = lamination, except for if that for the case, your hair would not seal, it'd combust.... silicone is flammable. Plus, any build up of chemicals of product, wouldn't be due to sil, it's kind of weird for that to be the case. I would assume multiple other things, perhaps in conjuncture before that to be the case. so again... no. 
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