Compare Products: C-Firma Fresh Day Serum vs C.E.O. 15% Vitamin C Brightening Serum

Who It's Designed For

Drunk Elephant
  • Those who want maximum freshness from their vitamin C serum
  • Users seeking a CE Ferulic formula with added botanical antioxidants
  • People comfortable with a premium price for innovative packaging and formulation
  • Sephora shoppers who want a luxury alternative to SkinCeuticals
  • Those following the Drunk Elephant 'Suspicious 6-free' philosophy
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

Drunk Elephant

15% L-Ascorbic Acid, Ferulic Acid, Tocopherol (Vitamin E), Pumpkin Ferment Extract, Pomegranate Ferment Extract, Sodium Hyaluronate

Sunday Riley

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

Product Composition

16% similarity (9 ingredients in common)

Shared Ingredients
dimethyl isosorbideglycerintocopherolsodium hyaluronate crosspolymersodium hyaluronateglycinehydroxyethyl acrylate/sodium acryloyldimethyl taurate copolymerphenoxyethanolcaprylyl glycol
Only in Drunk Elephant (28)
water/aqua/eauascorbic acidlaureth-23lactobacillus/pumpkin ferment extractsclerocarya birrea seed oildipotassium glycyrrhizateglycyrrhiza glabra (licorice) root extractvitis vinifera (grape) juice extractphyllanthus emblica fruit extractcamellia sinensis leaf extractlactobacillus/punica granatum fruit ferment extracthydrolyzed quinoaphytosterolsglutamylamidoethyl imidazolehydrolyzed wheat proteinferulic acidacetyl glucosaminetetrahydrobisdemethoxydiferuloylmethanetetrahydrodemethoxydiferuloylmethanetetrahydrodiferuloylmethaneleuconostoc/radish root ferment filtratesucrosemaltodextrinchondrus crispus extractisohexadecanecaprylhydroxamic acidsorbitan isostearatepropanediol
Only in Sunday Riley (19)
aqua/water/eautetrahexyldecyl ascorbatesqualanepolyglyceryl-6 distearatepeg-8 beeswaxlimonenecitrus sinensis (sweet orange) oilcitrus tangerina peel oilppg-12/smdi copolymerhydrogenated polydeceneacetamidoethoxyethanoljojoba estersglycolic acidcitrus aurantium dulcis (sweet orange) oilchlorphenesincera albaisosqualanec30 hydrocarbonssaccharide isomerate

User Feedback Patterns

Drunk Elephant
Freshness system is appreciated

The mix-before-use system is the most praised unique feature. Users trust that their vitamin C starts fresh, unlike pre-mixed serums that may have oxidized on shelves.

Sticky texture divides opinion

Some users find the serum slightly tacky or sticky. This resolves once other products are layered on top, but it is a commonly noted drawback.

Effective brightening

Users report noticeable glow and brighter skin within 2-4 weeks. Many compare results favorably to SkinCeuticals at a lower price.

Best-seller status at Sephora

Consistently ranked among Sephora's top-selling serums. The brand's strong Sephora presence drives discovery and repeat purchases.

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.

View Full Product Details

Related Comparisons