Two beauty topics which always play on my mind (even though I do both of these regularly) - clay masks, do they actually work to cleanse skin? Seems very counter intuitive to rub fine powder into your skin. I do normally get some spots coming up after I do them but could it be that the mask causes them? And secondly, pumice stones, is mechanical removal of hard skin on feet the best strategy here? Seeing as hard skin can be caused by friction in the first place. Would intensive moisturisation be a better longer term? Please share thoughts, not looking for peer-reviewed science just wondering if anyone has any perspectives/wisdom here. Thanks!