Lotion Whitening on Rub In - Possible Sources and Preventions?
So, I was recently asked by a colleague, why do some lotions whiten when you rub them in and others don't. Now, I have always been taught that it is bad if a skincare lotion whitens as you rub it in, as that is the sign of a cheaper/low end lotion but to be honest I'm not quite sure what the cause of it is. Is it due to a soaping out effect? For example is it due to a higher portion of saponifiable vs unsaponifiable content? Aka too many esters in the presence of NaOH? Could this be prevented by switching to a weaker base such as TEA (triethanolamine)?
Any advice would be appreciated! I tried searching the literature, but I did not have very much luck and at this point I am only speculating.
Any advice would be appreciated! I tried searching the literature, but I did not have very much luck and at this point I am only speculating.
Comments
Olivem 1000 very readily soaps ... Cetyl Alcohol at 1% helps, but does not prevent it entirely. What I have found helpful is to use a blend of Olivem 1000 with RitaMulse and add a plant-based silicone replacement such as Isoamyl Laurate ... give a really nice, light cream/lotion.
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