Vitamin C Serum: 10% vs 15% Compared, Plus What Each One Pairs It With

Vitamin C serums are usually compared by concentration: 10% versus 15%. But concentration is only part of the story. Vitamin C is an antioxidant that neutralizes free radicals. It also acts as a cofactor for collagen synthesis. It inhibits tyrosinase, the enzyme that drives melanin production. That’s the mechanism behind its use for brightening and pigmentation. Some brands add Niacinamide. It supports the skin barrier and limits melanin transfer between cells. Others add Vitamin E, a fat-soluble antioxidant that helps stabilize Vitamin C in the bottle.

Here are five Vitamin C serums sold in India, compared on concentration and what’s added alongside it. All five are sold on Nykaa. Percentage claims like “10% Vitamin C” are manufacturer-declared label concentrations, not independently verified lab results. Terms like glow, brightening, and reduces pigmentation are brand positioning language from each title, not independently verified outcomes. Review counts below reflect purchase and review volume, not fit or quality.

We don’t show a price here because it wasn’t checked in the last 24 hours — the listing may have changed. Price last checked 2026-10-22.

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• Dot & Key 10% Vitamin C + E Face Serum With 5% Niacinamide (64,184 reviews): This formula pairs 10% Vitamin C with Vitamin E and 5% Niacinamide. Vitamin E helps stabilize the Vitamin C. Niacinamide adds barrier support alongside it.
• Minimalist 10% Vitamin C Serum For Face For Glowing Skin (104,234 reviews): It lists 10% Vitamin C, with no Niacinamide, Vitamin E, or named skin concern. It’s the simplest formula of the five by title alone.
• Pilgrim 10% Vitamin C Face Serum Triple Glow+++ With 5% Niacinamide (10,183 reviews): This serum combines 10% Vitamin C with 5% Niacinamide, without added Vitamin E. It has the lowest review count of the five.
• Plum 15% Vitamin C Glow Face Serum (143,050 reviews): Four of the five serums here list 10% Vitamin C. This one lists 15%, the highest concentration among them. It also has the highest review count of the five.
• The Derma Co 10% Vitamin C Face Serum Reduces Pigmentation (38,481 reviews): Its title names pigmentation as the specific concern. The others use general glow or brightening language instead. It lists 10% Vitamin C, with no added Niacinamide or Vitamin E named in the title.

If you want Vitamin C paired with both Niacinamide and Vitamin E, pick Dot & Key.

If you want Vitamin C paired with Niacinamide but without added Vitamin E, pick Pilgrim.

If you want a simple Vitamin C serum with no added active, pick Minimalist.

If you want the higher 15% concentration, pick Plum.

If pigmentation is your specific concern, pick The Derma Co.

Shop Vitamin C serums on Nykaa