Twelve ingredients.
Nothing to hide.
We publish the full percentage of every formula on the box, because a skincare label should be a receipt, not a poem.
Nine formulas, made in small batches
Everything is cold-pressed and bottled within six weeks. When a batch is gone, it is gone until the next pressing.
Ossa No. 3 — Night Oil
Rosehip, squalane and a small amount of bakuchiol. Ten drops, pressed in, before you turn the light off. Nothing about it is urgent.
Full formula, by percentage
How to use it
Who it is not for
Find the one formula you actually need
No email gate, no results page you have to unlock. Answer three things and we will tell you which bottle to buy — including when the answer is “none of them yet”.
Slow, in the least romantic sense
Three steps, one room, and a cold press that has been running since 1974.
Pressed cold, never heated
Seeds go through the press below 40 °C. It is slower, the yield is worse, and it is the only way the fatty acids survive intact.
Bottled within six weeks
Amber glass, nitrogen-flushed, no preservative beyond vitamin E. Every bottle carries the pressing date, not a best-before invented by marketing.
Refilled, not repurchased
Keep the bottle. Refill pouches cost 30% less and weigh a tenth as much to ship. We have not sent a new glass bottle to a repeat customer since 2022.