Best C Serum

Plum Mandarin & 15% Vitamin C Glow Face Serum vs Dot & Key 10% Vitamin C+E Super Bright Face Serum

A factual side-by-side of two vitamin C serums. We do not pick a winner: the better choice depends on your skin and budget.

Detail
Price (last checked)₹790₹695
Size30 ml30 ml
Price per ml₹26₹23
Vitamin C form3-O Ethyl Ascorbic AcidAscorbyl Glucoside
Concentration15%23%
Key ingredientsFerulic Acid, Vitamin E, Sea BuckthornTurmeric, Vitamin E, Niacinamide
Skin typesCombination, Oily, DrySensitive, Dry, Combination
ConcernsPigmentation, Dullness, Anti-AgingDullness, Uneven Tone, Pigmentation
PackagingAirless pumpDropper
Customer rating4.5/5 from 6,054 (Plum (official store))4.7/5 from 865 (Dot & Key (official store))
Last checked3 Oct 20263 Oct 2026

Key differences

  • Dot & Key costs less per ml at the last checked prices (₹23 vs ₹26), although Plum may suit you better on formula.
  • They use different forms of vitamin C: 3-O Ethyl Ascorbic Acid in Plum and Ascorbyl Glucoside in Dot & Key. Strength percentages of different forms are not directly comparable.
  • Listed strengths are 15% and 23%. A higher percentage is not automatically more effective and can be more irritating.
  • Customer ratings come from different sellers and review systems, so small rating gaps are not meaningful.

Compare other products with the comparison tool or read our methodology.