designed for longevity. now shipping.

Tideline is a three-step ritual — serum, oil, butter — calibrated for skin in transition. The skin of a woman at fifty-two is not the formulation brief of a woman at thirty-five. It holds less water. The barrier turns over more slowly. In the thinnest places it shows time first.

We make skincare for that brief — and for the woman who has read enough, who buys hardcover books, who knows the difference between a serum and a story. Editorial, never clinical. Cosmetic-only by language and by law. Pro-this-age, never anti-aging.

The list is small and stays that way. It is where new formulas are shown first, and where the founder writes when there is something worth saying — not on a schedule, and not to sell you the thing you already bought.