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Abbrevations are always a source of amusement for me. As are alliterations (see what I did there?), but for a different kind of reason. The abbrevations you use tell a lot about where you are coming from and, as there are multiple uses for most of them, can lead to quite some confusion.
Take TCD for example. For the longest time, a TCD to me was a transcranial Doppler, something you do in neurosurgical patients to evaluate cerebral bloodflow. Google told me that TCD could as well mean Tschad or Trinity College Dublin.
So if I tell you now that the Instytutum Flawless Skin Mask works with TCD, which image pops up in your head? Well, let me explain what TCD stands for in this case: Transdermal cosmetic delivery, a method that allows ingredients to better penetrate the skin. There are several ways to achieve that, like using ingredients that weaken skins barrier function (alcohol for example) or using specific low molecular weight ingredients. Or, and I assume that this is what is used here, combining the low molecular weight ingredients with an occlusive layer on top.
So how did the Instytutum Flawless Skin Mask * work for me?