Compare Products: Deep Vita C Capsule Cream vs C.E.O. 15% Vitamin C Brightening Serum

Who It's Designed For

Medicube
  • Those seeking a vitamin C cream with interactive capsule texture
  • Users who want multiple brightening actives in one product
  • People looking for sea buckthorn-based hydration
  • Those who enjoy K-beauty innovation in texture
  • Users targeting dark spots and uneven tone
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

Medicube

50% Sea Buckthorn Water, 5% Niacinamide, Pure Vitamin C (Sodium Ascorbyl Phosphate), Ferulic Acid, 5 Vitamin C Derivatives

Sunday Riley

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

Product Composition

16% similarity (11 ingredients in common)

Shared Ingredients
1glycerinwaterglycine soja (soybean) oiltocopherolethylhexylglycerinhydrogenated lecithinsodium ascorbyl phosphatedisodium edtaglyceryl stearatesodium hyaluronate
Only in Medicube (41)
hippophae rhamnoides waterbutylene glycol2-hexanediolniacinamidemethylpropanediolpropanedioldipropylene glycolcaprylic/capric triglycerideglycereth-26ethylhexyl palmitatecetearyl alcoholargininecetearyl olivatesorbitan olivateammonium acryloyldimethyltaurate/vp copolymerhelianthus annuus (sunflower) seed oilbixa orellana seed oilpolyglyceryl-10 lauratesimethiconecarbomerpolyglyceryl-10 stearatepanthenolfolic acidpyridoxinebiotincyanocobalaminthiamine hclbeta-caroteneriboflavinlinoleic acidpolyacrylate-13polyisobutenepolysorbate 20sorbitan isostearateadenosinefragrancehydrolyzed sclerotium gumgluconolactoneascorbyl propyl hyaluronatealpha-arbutinpentylene glycol
Only in Sunday Riley (17)
tetrahexyldecyl ascorbatesqualanepeg-8 beeswaxlimonenecitrus sinensis (sweet orange) oilcitrus tangerina peel oilphenoxyethanolacetamidoethoxyethanoljojoba estersglycolic acidcaprylyl glycolcitrus aurantium dulcis (sweet orange) oilchlorphenesincera albaisosqualanec30 hydrocarbonssaccharide isomerate

User Feedback Patterns

Medicube
Brightening glow effect

Users report an immediate brightening and glowing effect after application. The sea buckthorn base contributes to a warm, luminous finish.

Fun capsule experience

Like the collagen capsule cream, users enjoy the interactive texture of bursting the vitamin capsules.

Gradual dark spot improvement

Long-term users note gradual fading of dark spots over 4 to 8 weeks of consistent use.

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?

Medicube Deep Vita C Capsule Cream 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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