vitamin-c-serums
C E Ferulic with 15% L-Ascorbic Acid
The undisputed industry gold standard based on the Duke Antioxidant patent, which established the specific parameters for Vitamin C absorption (pH <3.5, 10-20% concentration). It features a highly stable synergistic blend that provides 8x the skin's natural environmental protection.
Quality & Materials
Uses pure L-Ascorbic acid at 15% concentration, stabilized by alpha-tocopherol and ferulic acid. Sourcing is pharmaceutical grade with rigorous purity standards.
Evidence & Testing
Backed by over 30+ peer-reviewed studies and the foundational Duke University research on topical Vitamin C delivery.
Brand Transparency
Full disclosure of pH levels (2.0-3.0) and ingredient percentages. Manufacturing occurs in highly controlled environments to prevent premature oxidation.
Value Assessment
High price point ($182), but offers the highest efficacy per drop, potentially saving money on corrective procedures later.
Why Not Alternatives?
Most competitors lack the peer-reviewed clinical data backing this specific formulation's ability to neutralize free radicals and stimulate collagen. While expensive, it is the only product with the specific patent-protected ratio of 15% C, 1% E, and 0.5% Ferulic acid that has been proven in multiple RCTs.
Sources & References
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