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Diglycerin X Glycerin
What’s the difference between diglycerin and glycerin? Sometimes I see both in cosmetic products…
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4 Replies
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Just a dimer of Glycerol, more viscous (so maybe less thickener needed), mild humectant and enhances fragrance stability and longevity (but not a hard core on this one).
Likewise there is a very famous cousin of MPG (mono propylene glycol) called DPG (dipropylene glycol) which is one of the main carrier solvents of a major chunk of fragrances. . -
This is useful.
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@pma thank you for bringing up this question. I was just wondering the same thing.
@Perry & @milliachemist have either of you found a benefit in using diglycerin (DG) over glycerin? Because it is a less common item, I’m certain that diglycerin is going to be more expensive. Do you believe that there will be an advantage from a humectant standpoint? I imagine that there will not be as the larger structure of DG looks as though it will prevent it from penetrating as deeply/rapidly into the stratum corneum and it has a lower ratio of OH/surface area.
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I doubt there would be any noticeable difference between the two. Consumers especially are not good at picking up the kinds of subtle differences that there may be.
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