Compare Products: Deep Vita C Capsule Cream vs SuperSolutions 20% Niacinamide Serum

Medicube

Deep Vita C Capsule Cream

Mid-range
$29 / 55ml — $0.53/ml
The Inkey List

SuperSolutions 20% Niacinamide Serum

Budget20%
$17.99 / 30ml — $0.60/ml

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
The Inkey List
  • Very oily skin seeking maximum oil control
  • Stubborn enlarged pores unresponsive to lower niacinamide concentrations
  • Users who have tolerated 10-15% niacinamide and want to increase strength
  • Budget-conscious users wanting clinical-strength actives
  • Those seeking exfoliating effects (20% niacinamide has mild exfoliating properties)

Key Ingredients

Medicube

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

The Inkey List

Niacinamide (20%), Zinc PCA (0.5%), Squalane (3%)

Product Composition

21% similarity (12 ingredients in common)

Shared Ingredients
butylene glycolglycerinwaterniacinamideethylhexyl palmitatesorbitan olivateammonium acryloyldimethyltaurate/vp copolymerethylhexylglycerinsodium ascorbyl phosphatepolysorbate 20sorbitan isostearatesodium hyaluronate
Only in Medicube (40)
hippophae rhamnoides water12-hexanediolmethylpropanediolpropanedioldipropylene glycolcaprylic/capric triglycerideglycereth-26cetearyl alcoholargininecetearyl olivatehelianthus annuus (sunflower) seed oilglycine soja (soybean) oilbixa orellana seed oiltocopherolpolyglyceryl-10 lauratesimethiconecarbomerhydrogenated lecithinpolyglyceryl-10 stearatepanthenolfolic acidpyridoxinebiotincyanocobalaminthiamine hclbeta-caroteneriboflavinlinoleic acidpolyacrylate-13polyisobuteneadenosinefragrancedisodium edtaglyceryl stearatehydrolyzed sclerotium gumgluconolactoneascorbyl propyl hyaluronatealpha-arbutinpentylene glycol
Only in The Inkey List (5)
squalanephenoxyethanolbenzyl alcoholzinc pcadehydroacetic acid

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.

The Inkey List
Serious oil control

Users with very oily skin consistently report this as one of the most effective oil-control products they have tried. Many note all-day mattifying effect.

Strong but not irritating

Despite the 20% concentration, most users report no irritation. However, patch testing is frequently mentioned as important for first-time users.

Better than The Ordinary

Users who found The Ordinary's 10% niacinamide too weak or pilling-prone often prefer this. The gel texture absorbs cleanly.

Can leave white cast if overused

Some users report a white film if they apply too much. The brand addresses this: use less product and follow immediately with moisturizer.

Which Should You Buy?

The Inkey List SuperSolutions 20% Niacinamide Serum offers great value at a lower price point. Medicube Deep Vita C Capsule Cream may be worth the premium if you want 50% Sea Buckthorn Water.

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