Quiet Dose

The Journal

Science, routines, and honest skincare for sensitive skin

Ceramides explained: The lipids your skin actually needs
Ceramides make up half of the skin barrier's lipids, but not all ceramide products are created equal. Learn the difference between NP, NS, AP, AS and EOP, why cholesterol is essential, and what the research says about skin-identical ceramides. Read more...
What is the skin barrier? (And why it matters more than your serum)
The skin barrier is the single most important factor in skin health. Everything else — every serum, every acid, every trending ingredient — comes second. Read more...