No fragrance, no restricted UV filters, and no flagged preservatives. CI 42090 (Brilliant Blue FCF) is one cosmetic azo dye with no therapeutic value and some documented allergen potential in sensitive subpopulations. Niacinamide at 10% occasionally causes a brief, harmless flushing sensation in a small number of people — this is a transient response and not a safety concern.

10% Niacinamide is the most clinically validated concentration for pore minimising, sebum regulation, and brightening — it is the active that makes this product work. Zinc PCA adds sebum control benefit. The azo dye CI 42090 has no skin function whatsoever; it only adds colour to the formula. Strawberry extract appears at a low INCI position, which indicates a concentration likely below 1%. At that level, it contributes negligible Vitamin C or antioxidant activity — it is primarily a branding ingredient in this serum.

The brand explicitly states 10% Niacinamide on the product, which is unusually transparent for a mass-market product and worth recognising. The full INCI is published on dotandkey.com. The 'Strawberry Bright' name and marketing prominently position Strawberry extract as a hero active, but its INCI position indicates it is likely present at below 1% — insufficient to deliver meaningful Vitamin C activity. The implied brightening contribution from Strawberry is not substantiated at this concentration.

No synthetic fragrance. One azo dye (CI 42090) is present; azo dyes have minor documented aquatic toxicity concerns. Dot & Key is an Indian brand and is not sold in markets requiring mandatory animal testing for imported cosmetics. Packaging is plastic.