Hyaluronic acid is a moisture-binding molecule found naturally in your skin. In skincare, it draws water into the top layers to plump and hydrate.
Niacinamide is a form of vitamin B3 used in skincare. It helps strengthen the skin barrier, calm redness, and even out skin tone.
Peptides are short chains of amino acids that signal skin cells to build more collagen. They're gentle and well-tolerated — but the evidence behind them is far weaker than the marketing suggests.