Stability testing
Hi chemists,
Can you share with me good practices in testing the stability of cosmetic products? I want to broaden my knowledge at the theme so any answers are warmly received. I want to understand more about freeze/thaw cycles, because there is a lot of information about it in internet, but the number of cycles is always different, the temperatures are different. Is there any standard for freeze/thaw cycles?
At the moment I am using the following tests:
20 minutes at 45oC, then centrifuge it for 5 minutes at 6000 RPM on the day after making it.
2 months at 40oC
Also what are some tests for water phase products only like shampoos, gels etc.?
Can you share with me good practices in testing the stability of cosmetic products? I want to broaden my knowledge at the theme so any answers are warmly received. I want to understand more about freeze/thaw cycles, because there is a lot of information about it in internet, but the number of cycles is always different, the temperatures are different. Is there any standard for freeze/thaw cycles?
At the moment I am using the following tests:
20 minutes at 45oC, then centrifuge it for 5 minutes at 6000 RPM on the day after making it.
2 months at 40oC
Also what are some tests for water phase products only like shampoos, gels etc.?
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And this webinar on stability testing too.