This page is not a confirmed spec sheet. It's the current best understanding of the mechanism — what's real chemistry, what's a reasonable bet, and what we genuinely don't know yet. It will change as testing proves parts of it right or wrong, and every real change gets logged.
THE WORKING THEORY
The idea: a coating activated by moisture that's already there — your own hand or skin — not something you add. Here's the mechanism as we currently understand it, not marketing shorthand, and not a settled result.
Erythritol and xylitol produce a genuine endothermic reaction — real heat absorption, the same chemistry behind a cooling mint — triggered by the moisture already on your skin. Layered with WS-23, a cooling compound that fires your skin's cold receptors on contact, the same family of ingredient used in after-sun gels. That's the theory: real cold plus a real sensory jolt. It is not a medical claim, and it is not yet a proven result at product scale.
How strong the effect feels on skin vs. in a lab. How long it lasts through washes. The right dosage before it's too weak or too irritating. What a refresh product should look like. None of this is confirmed — it's the exact list of things a professional formulation and safety review needs to answer before we call any of it settled.
It would be easy to write this page like the mechanism is already proven — a confident paragraph, a clean diagram, done. That would be dishonest. This is testing and seeing if it's true, not a description of how the product definitely works. If the formulation review comes back and something here is wrong, this page changes, and the waitlist hears about it directly on the Timeline. That's the deal.