PVP K30 vs. PVP K90
I would really like your opinion on these two types of PVP. When you need to use this ingredient, which one do you usually choose? Are there any limitations on the types of formulations where each can be used, or is it more a personal thing?
For now, I only have experience with K30, but a colleague commented that K90 is more often used in colored cosmetics as it evens out the color and I was thinking of using it. Is this correct? Are there any other advantages to using K90, or precautions to be taken (such as dissolving in water)?
NOTE: At the moment I am manipulating some prototypes of different colored cosmetics, but the question is not limited only to them.
- This discussion was modified 4 months, 2 weeks ago by Lab.
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