Dot & Key Vitamin C Serum — Efficacy 4.4/5.0, Safety 4.4/5.0 | DemythSkin
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[ DemythSkin Verdict ]
Dot & Key Vitamin C Serum

Dot & Key Vitamin C Serum

SerumBrightening, hyperpigmentation, antioxidant protection
Efficacy
Strong
4.4 / 5.0
Safety
Safe
4.4 / 5.0
System Verdict
Solid mid-tier Vitamin C serum with smart synergies but lacks high-concentration punch for elite brightening. Efficacy score of 4.4 reflects Ethyl Ascorbic Acid and Niacinamide in top positions (likely >5-10%) paired with Ferulic Acid and Tocopherol for stability and photoprotection boost, plus barrier bonuses like ceramides; deducts for no disclosed % or pH data and reliance on stable-but-less-potent EAC derivative over pure L-ascorbic acid.
Active Ingredients Detected
S Tier: Gold StandardsHigh Clinical Proof | Skin-Transformative
Ethyl Ascorbic AcidFerulic Acid
A Tier: Good BasicsProven Results
AquaNiacinamideTocopherolGlycerinTocopheryl AcetateAllantoinSodium HyaluronateAlpha-ArbutinHydrogenated LecithinCeramide 1, 2,3,4,6IiCholesterol
B Tier: Supporting IngredientsPromising Ingredients
PropanediolButylene GlycolDiethylene Glycol Monoethyl EtherCitric AcidXanthan GumDisodium EDTACetyl-PG Hydroxyethyl Palmitamide1,2-Hexanediol
C Tier: Marketing IdolsHype | Limited or Weak Data
Citrus Sinensis (Blood Orange) Fruit ExtractTerminalia Ferdinandiana Fruit ExtractCucurbita Pepo (Pumpkin) ExtractLaminaria Digitata Extract
D Tier: Potential IrritantsBe Cautious
Benzyl AlcoholEthylhexylglycerin
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DemythSkin is an independent ingredient analyzer. Scores are computed by a deterministic rubric from published clinical evidence — no brand pays for a score.