We engineer for the lipid cliff, not against time.
Estrogen is a lipid signal.
As estrogen output declines through the perimenopause–postmenopause arc, sebaceous and lamellar lipid output drop alongside it. The barrier loses its mortar. We engineer for that biology, not against it.
Three pillars. One architecture.
Desert lipids feed the barrier. Adaptogenic mushrooms regulate the stress response. Structural botanicals rebuild the matrix. Each pillar exists because the others can't carry the work alone.