Sunday Riley C.E.O. Vitamin C Brightening Serum 1.7 oz — 15% THD Ascorbate, Hydrating & Barrier-Supporting

Sunday Riley C.E.O. 15% Vitamin C Brightening Serum is a fast-absorbing antioxidant serum that uses a stable 15% THD ascorbate to brighten the complexion, help reduce the look of dark spots and improve skin texture.

Powered by an oil-soluble, ultra-stable form of Vitamin C (THD ascorbate), this 1.7 oz serum targets visible dullness, discoloration and uneven tone while delivering hydration and antioxidant protection. The formula blends humectants and barrier-supporting botanicals to leave skin looking firmer and more luminous without heavy residue. Sunday Riley combines high-performance actives with clean, cruelty-free standards — the product is free from parabens, sulfates, phthalates, fragrance and common allergens listed on the label.

How does this Vitamin C serum help restore radiance?

The serum delivers a concentrated, stabilized form of Vitamin C that absorbs quickly and works on surface discoloration and overall dullness. It also includes ingredients that support moisture retention and skin resilience so the effect appears even and natural rather than temporarily glossy.

• 15% THD ascorbate: oil-soluble, stable Vitamin C for visible brightening.
• Hydrating humectants: improve skin bounce and reduce dry, flaky texture.
• Phytosterols and saccharide isomerate: soothe and strengthen the moisture barrier.

Will this serum reduce the look of dark spots and uneven tone?

While individual results vary, a concentrated Vitamin C formulation can help even the appearance of pigmentation over time by targeting discoloration at the skin surface. Regular use, combined with sun protection, supports more uniform tone and a clearer-looking complexion.

• Targets visible dark spots and post-inflammatory discoloration appearances.
• Improves overall luminosity for a more even-looking skin canvas.
• Works best as part of a consistent morning or evening routine plus SPF daytime protection.

Is this serum suitable for sensitive or hydration-needing skin?

The formula balances potent antioxidant activity with barrier-supporting ingredients to reduce irritation risk and help skin feel hydrated. It is fragrance-free and includes phytosterols and saccharide isomerate to calm the look of sensitivity and reinforce moisture retention.

• Fragrance-free and formulated to be non-irritating for many users.
• Saccharide isomerate reduces pore appearance and supports the barrier.
• Phytosterols help soothe and minimize visible redness or sensitivity.

How should I use Sunday Riley C.E.O. Brightening Serum for best results?

For most routines, apply a few drops to clean, dry skin once or twice daily depending on tolerance. Follow with moisturizer and, during daytime use, a broad-spectrum SPF to protect results and prevent further pigmentation.

• Apply 2–3 drops to face and neck after cleansing and toning.
• Allow absorption before layering moisturizer and sunscreen.
• Introduce gradually if you have reactive skin; use nightly or alternate nights initially.

Who is this for: This serum is designed for people seeking a potent Vitamin C treatment to brighten dull skin, address the appearance of dark spots and improve texture, while preferring a clean, cruelty-free formulation. It's well suited for normal to combination skin types and those who want an oil-soluble, fast-absorbing antioxidant product; sensitive skin users should patch-test and introduce the serum slowly. Sunday Riley C.E.O. 15% Vitamin C Brightening Serum is ideal for anyone aiming to boost visible radiance and even tone as part of a targeted skincare routine.

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.