Lanshin's Nephrite Jade Gua Sha tool has been a favorite since we first started carrying it in 2018: what we love about it is the fact that you can so quickly and easily work it into your routine, especially gua sha for slimmer face: if you already use a face oil. Lanshin's Nephrite Jade Gua Sha tool has been a favorite since we first started carrying it in 2018: what we love...