Vitamin C is the most important antioxidant serum for Indian skin. It addresses the two biggest concerns — post-inflammatory hyperpigmentation (dark spots) and UV-induced dullness — while protecting against the oxidative damage from Indian city pollution. The problem: most Indians either buy the wrong form of Vitamin C, store it incorrectly, or use it at the wrong time. This guide covers everything.
Vitamin C comes in multiple forms with very different properties. This is the most confusing part:
| Form | Effectiveness | Stability in India | Best for |
|---|---|---|---|
| Ascorbic Acid (L-AA) | Highest | Poor — oxidises fast in heat/humidity | Experienced users with cool storage |
| Ethyl Ascorbic Acid | High | Excellent — very stable | Most Indians — best balance |
| Ascorbyl Glucoside | Moderate | Excellent | Sensitive skin, beginners |
| Sodium Ascorbyl Phosphate | Moderate | Excellent | Sensitive/acne-prone skin |
For Indian climate: Ethyl Ascorbic Acid is the best choice. Mumbai humidity and Indian summer temperatures degrade pure Ascorbic Acid within weeks of opening. Ethyl Ascorbic Acid delivers comparable brightening with far better shelf stability.
Vitamin C degrades rapidly with heat and light. Store your serum in a cool, dark place — ideally the refrigerator door. The serum is no longer effective once it turns orange or dark yellow. Buy smaller bottles (30ml) and use within 2–3 months of opening.