Compare Products: Seeking C Vitamin C Face Serum vs C.E.O. 15% Vitamin C Brightening Serum

Who It's Designed For

Eight Saints
  • Those who prefer natural and plant-based skincare ingredients
  • Users seeking a gentle vitamin C derivative over L-ascorbic acid
  • People who enjoy strongly scented skincare products
  • Those looking for a hydrating vitamin C serum with botanical extracts
  • Users comfortable with essential oil-containing products
Sunday Riley
  • Those who want a stable vitamin C that will not oxidize or change color
  • Users who find L-ascorbic acid serums too irritating or acidic
  • People who enjoy a citrus-scented skincare experience
  • Those seeking a vitamin C serum that does not require refrigeration
  • Users looking for a luxurious texture that layers well under makeup

Key Ingredients

Eight Saints

Sodium Ascorbyl Phosphate, MSM (Methylsulfonylmethane), Botanical Hyaluronic Acid, Aloe Leaf Juice, Vitamin E (Tocopherol), Jojoba Oil

Sunday Riley

15% Tetrahexyldecyl Ascorbate (THD Ascorbate), Squalane, Glycolic Acid, Tocopherol (Vitamin E), Saccharide Isomerate

Product Composition

29% similarity (14 ingredients in common)

Shared Ingredients
aquasodium ascorbyl phosphatetocopherolsimmondsia chinensis (jojoba) seed oilsodium hydroxideglycerinphenoxyethanolethylhexylglycerinsodium benzoatecitrus bergamia (bergamot) peel oilcitrus limon (lemon) peel oilcitrus paradisi (grapefruit) peel oilcitrus aurantifolia (lime) oilcitrus aurantium amara (neroli) flower oil
Only in Eight Saints (18)
msmbotanical hyaluronic acidaloe barbadensis leaf juiceacrylates/c10-30 alkyl acrylate crosspolymercentella asiatica extractequisetum arvense extractgeranium maculatumtaraxacum officinale extractpotassium sorbatealcohollitsea cubeba fruit essential oilzingiber officinale (ginger) root oilcinnamomum camphora (ho wood) oilcymbopogon flexuosus (lemongrass) oilcymbopogon nardus (citronella) oilpogostemon cablin (patchouli) oilcananga odorata (ylang ylang) flower oilcinnamomum zeylanicum (cinnamon) leaf oil
Only in Sunday Riley (16)
tetrahexyldecyl ascorbatesqualanepolyglyceryl-6 distearatepeg-8 beeswaxlimoneneglycine soja sterolsppg-12/smdi copolymerhydrogenated polydeceneacetamidoethoxyethanolglycolic acidcaprylyl glycolchlorphenesincera albaisosqualanec30 hydrocarbonssaccharide isomerate

User Feedback Patterns

Eight Saints
Scent is polarizing

Users either love or dislike the strong citrus-herbaceous scent. Those who enjoy essential oils often rate it highly; fragrance-sensitive users find it overwhelming.

Skin feels hydrated and softer

Multiple reviewers note improved skin softness and hydration within the first week. The aloe, hyaluronic acid, and jojoba oil contribute to this effect.

Some users report irritation

A portion of reviewers experience stinging, redness, or irritation, likely from the essential oil blend. The cinnamon and citrus oils are common triggers.

Gradual brightening

Users who tolerate the formula report gradual brightening over several weeks. Results are described as subtle rather than dramatic.

Sunday Riley
Luxurious texture

Users consistently praise the lightweight oily texture that absorbs well and sits beautifully under makeup. The application experience is rated higher than most L-ascorbic acid serums.

Pleasant citrus scent

The orange scent is frequently mentioned as a positive. Users who enjoy scented skincare rate this highly. However, fragrance-sensitive users avoid it.

No oxidation concerns

Users appreciate that the golden color remains consistent throughout the product's life. No anxiety about darkening or wasting product due to oxidation.

Gradual brightening results

Brightening results are described as gradual but visible over 4-8 weeks. Some users expecting the immediate 'glow' of L-ascorbic acid find the results slower.

Which Should You Buy?

Eight Saints Seeking C Vitamin C Face Serum offers great value at a lower price point. Sunday Riley C.E.O. 15% Vitamin C Brightening Serum may be worth the premium if you want 15% Tetrahexyldecyl Ascorbate (THD Ascorbate).

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