Dear Cosmetics formulators,
I am developing a high active serum, and my solvent is 1,3-propanediol (Zemea). So, there is no water. I am looking for a way to thicken it to a consistency of honey. So that it is not yet a gel, but does hold some shape and some body.
Does anybody have any idea, how to tackle such a challenge?
Thank you in advance,
Olja Reven, PhD
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