Sunday Riley C.E.O. 15% Vitamin C Brightening Serum — Orange 1.0 fl oz, Fast-Absorbing Antioxidant Radiance

This lightweight, orange-toned serum combines 15% THD ascorbate (a stable Vitamin C form) with a phytosterol complex and botanicals to help reduce the appearance of dullness, dark spots, and discoloration while protecting skin from everyday oxidative stress. Formulated to absorb quickly without heavy residue, it layers well under moisturizers and sunscreens and is suitable for daily use as part of a morning routine.

How quickly will I notice brighter looking skin?

Visible improvements depend on your skin’s starting point and consistency, but many users report a fresher, more even-looking complexion within a few weeks of regular morning use. The serum’s stabilized Vitamin C targets uneven tone while antioxidants help preserve a brightened appearance.

• Contains 15% THD ascorbate for stable, effective vitamin C delivery
• Formulated for daily AM application to build cumulative results
• Lightweight texture absorbs fast, so it layers easily under SPF

Will this serum suit sensitive or reactive skin?

The formula pairs Vitamin C with a phytosterol complex derived from soy to help soothe redness and minimize irritation risk. While it’s developed for broad skin-type compatibility, perform a patch test if you have highly reactive skin or are using other active treatments.

• Phytosterols help reduce the appearance of redness and sensitivity
• Non-greasy, quick-absorbing formulation lowers surface irritation
• Recommended to patch-test when combining with strong actives

How should I use it in my skincare routine?

Apply a few drops to clean, dry skin each morning before moisturizer and sunscreen to maximize antioxidant protection during the day. The serum works as a targeted brightening step and can be combined with other Sunday Riley products or your usual daytime essentials.

• Use 2–4 drops on face and neck after cleansing in the AM
• Follow with hydrating moisturizer and broad-spectrum SPF
• Avoid layering with untested strong exfoliating acids without guidance

What are the key ingredients and benefits?

C.E.O. centers on 15% THD ascorbate, a potent yet stable Vitamin C known for visible brightening and antioxidant support. A phytosterols complex (soy-derived) helps calm skin and diminish the look of redness while balancing botanicals support skin comfort.

• 15% THD ascorbate delivers clarifying and antioxidant action
• Phytosterols Complex helps reduce the look of redness and sensitivity
• Light, orange-hued serum designed for daily daytime wear

Who is this for: C.E.O. 15% Vitamin C Brightening Serum is designed for anyone seeking a daily antioxidant boost and visible brightening—ideal for those concerned with dullness, uneven tone, and early signs of environmental stress. It’s formulated to be non-irritating for most skin types and particularly useful for people who want a fast-absorbing, morning-focused serum that layers well under moisturizers and sunscreen.

Ingredients

INGREDIENTS: Water/Eau/Aqua, Tetrahexyldecyl Ascorbate, Squalane, Polyglyceryl-6 Distearate, PEG-8 Beeswax, PPG-12/SMDI Copolymer, Glycine Soja (Soybean) Sterols, Sodium Phytate, Tocopherol, Acetamidoethoxyethanol, Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer, Sodium Acrylate/Sodium Acryloyldimethyl Taurate Copolymer, Jojoba Esters, Glycolic Acid, Caprylyl Glycol, Cetyl Alcohol, Polyglyceryl-3 Beeswax, Chlorphenesin, Glycerin, Polysorbate 60, Sorbitan Isostearate, Saccharide Isomerate, Citrus Aurantium Dulcis (Orange) Peel Oil, Citrus Tangerina (Tangerine) Peel Oil, Linalool, Limonene, Phenoxyethanol.