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Tagged: silicones
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What prevents water soluble silicones from ending up in the drain instead of on hair?
Posted by Gunther on February 22, 2019 at 6:20 pmDon’t water soluble silicones (like PEG-8 dimethicones and Silsense derivatives) get rinsed away, just because they are water soluble?
OldPerry replied 5 years, 6 months ago 5 Members · 6 Replies -
6 Replies
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@Gunther, it’s a very good question, I am also curious whether it stays on hair or not. I use PEG-8 Dimethicone in shampoos because it improves finger pass when the product is rinsed. So it’s more for the “experience”.
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There is a definite effect after drying the hair, with Silsense. Slip, shine, and detangling.
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I think most of it does just get rinsed down the drain. This was always a problem I had with using water soluble silicones in rinse off hair products.
In my experience, I was never able to demonstrate a significant effect via tress testing on a blinded basis. We mostly included the material because it affected the feel of the product while in use. I don’t recall seeing any post-use benefits.
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Perry said:I think most of it does just get rinsed down the drain. This was always a problem I had with using water soluble silicones in rinse off hair products.
In my experience, I was never able to demonstrate a significant effect via tress testing on a blinded basis. We mostly included the material because it affected the feel of the product while in use. I don’t recall seeing any post-use benefits.
I agree. Pretty much anything ends up in the drain in a rinse off product.
Do you think quaternized silicones, like amodimethicone get a better chance since they’re kind of “attracted” to hair? -
@Gunther - Yes, these would work much the same way as cetrimonium chloride for example. In the paper, Silicones as conditioning agents in shampoos - K Yahagi - JOURNAL-SOCIETY OF COSMETIC CHEMISTS, 1993
They show the relative differences in combing effect from highest to lowest was Dimethicone, Amodimethicone, and Dimethicone Copolyol.
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