The present invention provides flake-shaped hydrotalcite-type particles having superior glide and sufficiently reduced ability to cause skin irritation. The present invention also provides a cosmetic containing said flake-shaped hydrotalcite-type particles. The flake-shaped hydrotalcite-type particles are represented by a prescribed structural formula and have an average flake surface diameter of 150-800nm, an aspect ratio (average flake surface diameter/average thickness) of 4.0-20.0, and a pH value of 6.0-8.5 according to the JIS K5101-17-1 (2004) test methods for pigments.本發明提供一種滑動性優異，對皮膚之刺激性得到充分降低之板狀水滑石型粒子。又，提供一種含有此種板狀水滑石型粒子之化妝料。本發明係一種板狀水滑石型粒子，其以特定結構式表示，平均板面徑為150~800nm，寬高比(aspect ratio)(平均板面徑/平均厚度)為4.0~20.0，藉由JIS K5101-17-1(2004年)之顏料測試方法而得之pH值為6.0~8.5。
