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Shop Sunday Riley C.E.O. Glow Vitamin C + Turmeric Face Oil
Serum
Sunday Riley

C.E.O. Glow Vitamin C + Turmeric Face Oil

· 35ml
Dark spotsRadianceFine lines & firmness
At a glance
Routine step
Serum (oil)
When
Morning and evening
Skin types
Combination, Dry, Normal, Oily
Pairs well with
Tretinoin, Retinaldehyde, Niacinamide, Azelaic Acid
Use with care
2 layering conflicts, listed below
How to use

Apply a pea-sized amount to clean, slightly damp skin before your moisturizer. Start with a few nights a week if it contains an active you are new to.

This product contains an active that can irritate at first. Patch test on the inner forearm for 24 hours and start two or three times a week.

Ingredient research in this formula

These are ingredient-level research links, not evidence that this exact product has been clinically tested.

  • Vitamin CExcellent evidenceFull dossier

    Brightens dull skin and helps fade dark spots. Also defends against everyday UV and pollution damage when worn under sunscreen.

    Good for: Brightening, Antioxidant

New to this? Patch test on your inner arm for 24 to 48 hours before applying to your face. If you have sensitive skin or rosacea, start 2 to 3 times per week and build up slowly.

Evidence behind the ingredients

Real citations from our research database, one per tracked active in this product. Click any ingredient name to read its full evidence dossier.

Vitamin CExcellent evidence15 citations

Brightens dull skin and helps fade dark spots. Also defends against everyday UV and pollution damage when worn under sunscreen.

Krutmann J et al. PINGing Sunshine: A Review of the Evidence for Adding Non-Filtering Photoprotective Ingredients to Sunscreens. Photodermatol Photoimmunol Photomed. 2025;41(6). Review of Photoprotective INGredients (PINGs); L-ascorbic acid (vitamin C) identified as a top-ranked PING demonstrating efficacy across multiple photodamage endpoints.

2025Meta-analysis (positive)PMID:41152208View source ↗

Pullar JM et al., The roles of vitamin C in skin health, Nutrients 2017;9(8):866: concluded topical efficacy "poorly understood"; supports dietary vitamin C

2017Mechanism onlyPMID:28805671View source ↗

Lee JH et al., Effects of VitabridC12 on Skin Inflammation, Annals of Dermatology 2017

2017Mechanism onlyPMID:28966510View source ↗

Sources: 10 clinical journals and regulatory databases across the US, EU, Korea, Japan, and China. Every entry points to a specific document. See methodology for the full list and what each outcome label means.

Layering conflicts

Ingredients in this product that can react with common actives. Avoid stacking unless noted.

  • Benzoyl peroxide breaks down vitamin C, making both less effective. Use one in the morning and the other at night.

  • Vitamin C and retinol work best at different pH levels. Use vitamin C in the morning and retinol at night.

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Not medical advice. GlowPal is educational. Patch-test new products and talk to a qualified healthcare professional before changing your routine, especially if you're pregnant, nursing, or have a diagnosed skin condition. See our terms.