Biolumin-C Vitamin C Serum

$99
Paraben-Free Sulfate-Free Fragrance Citrus Grandis (Grapefruit) Peel Oil, Limonene Silicone Ascorbyl Methylsilanol Pectinate PEG Polysorbate-20

Biolumin-C is Dermalogica's flagship vitamin C serum, using two stabilized forms, aminopropyl ascorbyl phosphate and ascorbyl methylsilanol pectinate, alongside palmitoyl tripeptide-5 for firmness support. Lactic acid is worked in for mild exfoliation, and sodium hyaluronate keeps the formula from feeling drying despite the acids. It's one of the brand's longest-running bestsellers, aimed at dullness, uneven tone, and early fine lines.

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