Sunday Riley’s C.E.O. 15% Vitamin C Brightening Serum is a skincare product designed to enhance skin radiance and address signs of aging. Its key ingredient, 15% Tetrahexyldecyl Ascorbate (THD Ascorbate), is a stable, oil-soluble form of Vitamin C that aims to brighten the complexion, reduce dark spots, and improve skin firmness. The serum also contains phytosterols to help reduce skin sensitivity and saccharide isomerate extract to diminish the appearance of pores and reinforce the skin’s moisture barrier.
Pros:
✅ Lightweight, creamy texture that absorbs quickly without leaving a sticky residue.
✅ Brightens the skin and helps prevent premature aging.
✅ Practical packaging with a pump dispenser and opaque bottle to protect the product’s integrity.
Cons:
⚠ Contains citrus oils that may irritate sensitive skin.
⚠ Some users have reported allergic reactions, including rashes and itching.
⚠ The 15% Vitamin C derivative may be less effective than pure Vitamin C forms.
Overall, while the serum offers several benefits, individuals with sensitive skin should exercise caution due to potential irritants in the formulation.