Testing effectiveness of cosmetics at home
I’m trying to find some ways people can test the effectiveness of cosmetics at home. I have seen other people doing the following stuff:
- pH testing: using pH strips
- oiliness: using blotting paper
- stickiness: using scraps of paper
- skin moisture: using skin moisture analyzers, which are available cheaply online for something like $30
- checking for antioxidant properties: one used iodine, another simply applied the product to a cut apple
I think testing for oiliness and stickiness are pretty reliable as they only check physical properties. Using pH strips should also give at least a rough idea if the product is not too harsh. But the antioxidant thing, I’m not sure how useful it is? I guess it can tell you that there is some antioxidant in it, but not the concentration (unless you measure it professionally). Do people have any other ideas how products can be tested at home?
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