Sunday Riley C.E.O. 15% Vitamin C Brightening Serum — Fast‑Absorbing, Oil‑Soluble Antioxidant for Even Tone

Sunday Riley C.E.O. 15% Vitamin C Brightening Serum is a fast-absorbing, oil-soluble vitamin C formula that targets dullness, dark spots, and the look of aging to reveal visibly brighter, firmer skin.

This lightweight serum centers on THD ascorbate, a highly stable, oil-soluble form of vitamin C designed to penetrate skin quickly and deliver antioxidant support without heavy residue. The formula is created to even tone, reduce the visible appearance of discoloration, and restore bounce for a more radiant complexion. It layers easily under moisturizers and makeup, making it practical for daily morning or evening routines.

How does this serum address dark spots and uneven tone?

The C.E.O. 15% formula works at the pigment level by supplying stable vitamin C that supports skin’s natural renewal and helps reduce the look of discoloration. Regular use can make dark spots and areas of dullness look less noticeable, contributing to a more uniform complexion.

• Contains 15% THD ascorbate, a potent, stable vitamin C derivative
• Oil-soluble for improved absorption into skin layers
• Antioxidant action helps neutralize environmental contributors to dullness

Will this serum make my skin feel dry or oily?

The texture is lightweight and formulated to absorb rapidly without leaving a greasy film. Because it’s oil-soluble, it glides into the skin and can feel hydrating when paired with a suitable moisturizer, making it compatible with most skin types when used as directed.

• Fast-absorbing, non-greasy finish suitable for layering
• Works well under SPF and makeup during daytime routines
• Recommended to follow with a moisturizer for balanced hydration

How quickly should I expect to see visible improvements?

Visible changes depend on skin condition and consistency of use; many users notice brighter, more even-looking skin within several weeks. Continued nightly or twice-daily application as part of a complete regimen typically yields the most reliable improvements in firmness and tone over time.

• Daily use increases cumulative brightening and antioxidant benefits
• Noticeable reduction in dullness often appears within weeks
• Longer-term use supports the look of firmer, plumper skin

How should I incorporate this into my skincare routine?

Apply a few drops to clean, dry skin before moisturizing; it pairs smoothly with sunscreens in morning routines and with richer creams at night. Start with every other day if you have sensitive skin, then increase to daily use as tolerated.

• Use after cleansing and before serums or moisturizers
• Apply sunscreen over it during daytime to protect results
• Patch-test first if you have reactive skin, then adjust frequency

Who is this for: Sunday Riley C.E.O. 15% Vitamin C Brightening Serum is suited for anyone looking to visibly brighten dull or uneven skin tone, reduce the appearance of dark spots, and restore a firmer-looking complexion. It’s especially helpful for people seeking a stable, oil-soluble vitamin C option that layers well within everyday skincare routines. Those with sensitive or reactive skin should introduce it gradually and follow with calming hydrators or consult a skincare professional if concerned.

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.