Peptides are on almost every serum label now. Here is what the word actually means, the four main types, and what the research does and does not show.

Not all hyaluronic acid is the same. The size of the molecule changes where it works and what you can expect from it.

Liposomes are one of the most common delivery systems in skincare. Here is how they work, and where the marketing tends to overstate them.

Our flagship serum is built around a synthetic Klotho-derived peptide. Here is the science behind the name, and the limits of what it means.

The words a skincare brand uses decide how the law treats its product. Here is the line between a cosmetic and a drug, and how we stay on the right side of it.