Head to Head
Sunday Riley C.E.O. Serum vs C.E.O. Glow Oil: One Vitamin C, Two Vehicles
The C.E.O. family argument in full: the 15 percent THD ascorbate serum against the vitamin C and turmeric oil, on delivery, texture, scent and the skin each suits.


Sunday Riley C.E.O. 15% Vitamin C Brightening Serum
The vitamin C flagship: 15 percent THD ascorbate in a cushioned, glow first serum

Sunday Riley C.E.O. Glow Vitamin C + Turmeric Face Oil
The same vitamin C family in oil form: THD ascorbate and golden turmeric in cold pressed seed oils
Where They Differ
Delivery and supporting cast
Both carry THD ascorbate, the oil soluble vitamin C form, and the serum prints its strength at 15 percent while the oil does not print a percentage. The serum supports its vitamin C with a phytosterols complex and squalane in a pump serum base. The oil supports its vitamin C with golden turmeric and a cold pressed cast of red raspberry and evening primrose oils. Same headline, different entourages: the serum's is about calm layering, the oil's is about antioxidant breadth.
Texture, tint and scent
The serum is a cushioned lotion serum with a citrus scent from orange and tangerine peel oils, and it disappears under moisturizer. The oil is visibly orange, warms the look of skin on application, and carries a turmeric scent that lingers longer and divides owners more sharply. Fair skin, white collars and morning rushes vote serum; evening rituals and dry skin vote oil.
Where each sits in a routine
The serum owns the classic morning slot, under cream and sunscreen, and layers without argument. The oil is more flexible and more conditional: a final step at night, a glow step on bare skin mornings, or a few drops pressed over the serum when winter makes the serum feel insufficient. Flexibility is the oil's charm and its complication.
The Specification, Side by Side
| Measure | Sunday Riley C.E.O. 15% Vitamin C Brightening Serum | Sunday Riley C.E.O. Glow Vitamin C + Turmeric Face Oil |
|---|---|---|
| Size | 1.0 fl oz / 30 ml | 35 ml / 1.18 fl oz |
| Format | Pump serum | Dropper facial oil |
| Key ingredients | Phytosterols Complex, Squalane, Glycolic Acid | Vitamin C (THD ascorbate), golden turmeric, evening primrose oil, red raspberry seed oil |
| Use | Morning or evening, one to two pumps on clean skin | Warm a few drops between palms and press onto clean skin morning or night, as directed on the listing |
| Vitamin C Form | THD Ascorbate, 15 percent | Not published |
| Vitamin C form | Not published | THD ascorbate, an oil soluble form of vitamin C, as printed on the bottle |
Choose Sunday Riley C.E.O. 15% Vitamin C Brightening Serum if
- Your routine layers serum, cream and sunscreen every morning
- Your skin is oily or combination and oils need rationing
- You want the printed 15 percent strength and a pump format
Choose Sunday Riley C.E.O. Glow Vitamin C + Turmeric Face Oil if
- Your skin is dry and your routine is already oil led
- You want a visible glow on application, not just over time
- You prefer one richer step over two layered ones at night
Questions, Answered
Can I layer the serum and the oil together?
Yes, in that order, and owners with dry skin do exactly this in winter: the serum as the treatment layer, a few drops of the oil pressed over it as the seal and glow. What that layering does not do is double the vitamin C benefit in any way the listings claim, so treat it as a texture decision, not a strength decision.
Keep Researching
Every page in the Sunday Riley edit.
- 01Sunday Riley: the hubHub
- 02Best Sunday Riley Products 2027: The Icons and the Supporting Cast, RankedBest of
- 03Building a Sunday Riley Routine: The AM and PM SequenceGuide
- 04Good Genes vs A+ vs Luna: The Three Treatment Icons by JobGuide
- 05Sunday Riley for Beginners: The Starter Trio LogicGuide
- 06Sunday Riley Luna Sleeping Night Oil Review: The Gentle Way Into RetinoidsReview
- 07Sunday Riley ICE Ceramide Moisturizing Cream Review: A Proper Barrier Cream, Small JarReview
- 08Sunday Riley Juno Antioxidant + Superfood Face Oil Review: The Oil With No HeadlineReview
- 09Sunday Riley Good Genes vs A+: Surface Acid or Deep Retinoid?Comparison
- 10Sunday Riley Buying Guide: How to Build the Shelf in the Right OrderBuying guide
- 11Sunday Riley Care and Keeping: Acids, Retinoids and Oils Done RightCare
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