Solid analysis, OP. The counterfeit warning is no joke – 58 fake versions is insane. For anyone wanting to dig deeper into product safety and verified reviews before buying, here's a useful resource → https://happymodd.com.br]. Also seconding your "3-day observation method" – patch testing is non-negotiable with any topical product. Thanks for the honest breakdown.
Finally, a guide that's actually useful. The vinegar test and foil check are going straight into my mental toolkit.
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Also seconding your point about lifestyle changes – pills are a tool, not a solution. Sleep, exercise, and stress management do more in the long run. Thanks for putting this together,药师.