You wake up tired even after eight hours of sleep. Your skin looks duller than it did a year ago. You feel a slight mental fog by 4pm. None of these feel like a "problem" worth seeing a doctor about. But they have a common underlying driver that most Indians never get explained: free radical damage.
Free radicals are not a wellness fad or a marketing buzzword. They are a real, measurable chemical phenomenon happening inside every cell of your body, every second of every day. Understanding what they actually do, and how your body fights them off, is the foundation of how supplements like antioxidants work.
What Free Radicals Actually Are
At a chemistry level, a free radical is a molecule with an unpaired electron. Electrons in healthy molecules come in stable pairs. When a molecule loses one and is left with an odd number, it becomes desperately unstable. It will steal an electron from the nearest available molecule to balance itself out.
That "nearest available molecule" inside your body is usually a part of a healthy cell. The wall of a cell. The DNA inside its nucleus. A protein doing useful work. When a free radical steals an electron from one of these, it damages that structure and creates a new free radical in the process. A chain reaction starts. This is called oxidative damage.
The word "oxidation" is the same chemistry that turns a cut apple brown, or rusts an iron gate left out in the monsoon. The same process, happening biologically, inside you.
Where Free Radicals Come From in Everyday Indian Life
Some free radicals are produced inside the body as a normal byproduct of converting food into energy. This baseline level is unavoidable, and a healthy body is built to neutralise it. The problem is everything modern urban life adds on top of that baseline.
The major sources for someone living in an Indian metro:
- Air pollution. PM2.5 particles from vehicle exhaust, construction dust, and crop-burning smoke directly generate free radicals in lung tissue and bloodstream.
- UV radiation. Sun exposure during commuting and outdoor work, especially without sunscreen, triggers free radical formation in skin cells.
- Processed and fried food. Oils heated repeatedly, packaged snacks with industrial seed oils, and high-sugar foods all increase free radical load.
- Chronic stress. Sustained cortisol release accelerates oxidative damage at the cellular level, which is why prolonged stress visibly ages people.
- Tobacco smoke. Direct and passive smoke is one of the most concentrated sources of free radicals known.
- Alcohol. Especially regular consumption, which depletes the body's natural antioxidant reserves.
- Disturbed sleep. The body does most of its antioxidant repair during deep sleep, so short or broken sleep means damage accumulates.
Nobody living in a city like Mumbai, Delhi, or Bengaluru escapes more than two or three of these. Most people are exposed to all seven simultaneously.
What Free Radical Damage Actually Looks Like
The damage is not dramatic. It is slow, cumulative, and shows up in patterns most people dismiss as just "getting older."
- Skin that loses firmness and develops fine lines earlier than it should.
- Pigmentation and uneven tone, particularly on the face and hands.
- Energy levels that drop year on year without an obvious explanation.
- Reduced mental sharpness, slower recall, and afternoon brain fog.
- Joints that stiffen up more easily after sitting.
- Slower recovery from workouts or illness than in earlier years.
- Hair that thins or greys earlier than expected.
None of these are diseases. They are visible expressions of the slow, accumulated damage that free radicals do over years. This is also why "ageing" is not really about birthdays. It is about how much oxidative damage has built up, and how well the body has been able to repair it.
How Antioxidants Work
An antioxidant is a molecule that has an extra electron it can donate freely. When a free radical encounters an antioxidant, the antioxidant gives up its spare electron, satisfying the radical's need without itself becoming unstable. The chain reaction stops there. The damage is neutralised.
This is the entire mechanism. There is nothing magical about it. The body produces some of its own antioxidants, the most important being glutathione, which it makes from amino acids the diet provides. The rest have to come in through food: vitamin C from citrus and amla, vitamin E from nuts and seeds, polyphenols from green tea and turmeric, carotenoids from coloured fruits and vegetables.
A balanced traditional Indian diet, eaten in adequate quantity, does provide a reasonable baseline of antioxidants. The challenge is that modern diets are usually neither balanced nor adequate in this respect, while modern free radical exposure is dramatically higher than what previous generations faced.
Why a Single Antioxidant Is Not Enough
One of the most useful things to understand is that the body does not use just one type of antioxidant. Different antioxidants work in different compartments of the body.
- Vitamin C works in the watery parts of cells and the bloodstream.
- Vitamin E works inside fatty membranes, including the outer wall of every cell.
- Coenzyme Q10 works inside mitochondria, where energy is produced.
- Glutathione works inside cells, particularly in the liver.
- Carotenoids like lutein and zeaxanthin concentrate in eye tissue.
- Astaxanthin uniquely crosses both water and fat compartments and reaches brain tissue.
This is why no single supplement, even at very high doses, can do what a properly balanced combination can. Taking only vitamin C, for example, does nothing for the antioxidant defence happening inside your cell membranes. That requires vitamin E. Taking only one antioxidant in isolation also depletes the others, because they work as a regenerating network: vitamin C recycles vitamin E, alpha lipoic acid recycles both, and so on.
Where Supplementation May Help
For most adults living an average urban Indian lifestyle, three things are usually true at the same time:
- Free radical exposure is significantly higher than the body evolved to handle.
- Diet does not consistently provide the full range of antioxidants needed.
- The body's own antioxidant production declines with age, particularly after 35.
A well-formulated antioxidant supplement may support the body's natural defence system by closing the gap between intake and demand. The keyword here is "well-formulated." A combination that covers water-soluble, fat-soluble, mitochondrial, and ingredient-specific antioxidants is meaningfully different from a single-vitamin product.
Purezen's OxiShield was built specifically around this network principle. It combines 17 ingredients across all four antioxidant compartments, including Alpha Lipoic Acid, NAC (which the body uses to make glutathione), Astaxanthin, Quercetin, Resveratrol, Lutein and Zeaxanthin, Vitamins C and E, and trace minerals like Selenium and Zinc that the body's own antioxidant enzymes depend on.
The Practical Takeaway
Free radicals are not something to be afraid of. They are a normal part of being alive. What has changed in the last generation is the scale of exposure, which has outpaced what most people's diets can compensate for. The damage shows up not as illness but as the slow erosion of how good your body feels, looks, and performs over time.
Addressing it does not require anything exotic. It requires reducing the inputs you can control: better food, less processed oil, more sleep, less smoking and alcohol. And where the gap remains too wide to close through diet alone, a thoughtful antioxidant combination may support the body's natural ability to keep up.
The point is not to chase a magic ingredient. The point is to maintain the network the body already uses, and to make sure none of its links is missing.
