Experience advanced Japanese skincare with the Double Deep Serum C, a highly penetrative, hypoallergenic vitamin C serum designed to reach the stratum corneum even in small amounts. Developed over more than 10 years, this formula combines penetrating peptide vitamin C with α-linolenic acid to promote clearer, brighter, and healthier-looking skin.
Unlike typical vitamin C serums, this formula features a smooth, milky texture that absorbs comfortably and blends naturally with the skin. Its mildly acidic composition matches the skin’s natural pH, reducing irritation and preventing pilling—making it suitable even for those who are sensitive to strong vitamin C products.
To further enhance skin resilience, the serum includes collagen, peptides, and four types of ceramides, helping to strengthen the moisture barrier and support the skin’s natural repair processes. The result is a serum that not only brightens but also deeply hydrates and reinforces the skin’s foundation.
Formulated with a 7-free standard, this product contains no ethanol, mineral oil, artificial colorants, silicones, parabens, fragrances, or petroleum-based surfactants, making it safe for all skin types, including sensitive skin.
Volume: 1.1 oz (30 g) — approximately 30 days of use
Made in Japan
Fragrance-free, weakly acidic, gentle on the skin