Serum 02 — Niacinamide
$44.005% niacinamide + 1% zinc PCA, pH 6.0.
Serums
0.05% retinaldehyde, encapsulated, pH 5.5.
A nightly retinoid for cumulative collagen renewal. Retinaldehyde converts to retinoic acid in a single enzymatic step, delivering measurable results with markedly less irritation than retinol at equivalent strength. Formulated with a low-friction emulsion of squalane and bisabolol so the active reaches the dermis without disrupting the barrier.
In a 12-week open-label study (n=42, IRB-approved, Lisbon 2022), participants showed a 28% reduction in periorbital line depth and a 41% reduction in self-reported irritation versus 0.3% retinol.
Formulated in Lisbon.
Retinaldehyde
0.05%
Vitamin A precursor; one-step conversion to retinoic acid.
Squalane
olive-derived
Lipid-identical emollient; reduces transepidermal water loss.
Bisabolol
α-(-)-bisabolol
Calms retinoid-induced flushing.
Tocopherol
vitamin E
Stabilizes the active against oxidation.