STR/04 The Formulas
Eight products, eight addresses.
Every formula below is built around actives whose target layer is published, not implied. Filter by layer to see what actually reaches where.
$42
AHA Renewal Toner 8%
Surface exfoliation without skipping the humectant most acid toners leave out.
$72
Bright Ascorbic Serum 15%
An unstable antioxidant, formulated and packaged the way stability actually requires.
$54
Corneum Barrier Cream
Ceramides where the barrier actually needs them, with niacinamide for tone support.
$38
Daily Mineral Shield SPF 30
A mineral-only filter that stays exactly where sunscreen is supposed to stay: on the surface.
$46
Dual-Weight Hyaluronic Serum
Two hyaluronic acid weights, aimed at two different depths on purpose.
Niacinamide 10 Treatment
One active, one job: supporting the epidermis's own lipid production.
$58
Night Retinol 0.3
A measured retinoid dose, buffered with the same barrier lipid your skin already makes.
$84
Peptide Recovery Serum
A signal peptide formulated to reach the junction it's meant to reach -- not a promise about what happens after.