In the world of skincare, “antioxidants” are one of the most talked-about ingredients - celebrated for helping skin appear healthier, smoother and brighter. What exactly are antioxidants, and how do they interact with the skin?
What are antioxidants?
Antioxidants are molecules that help protect the skin from damage caused by unstable molecules known as free radicals. Free radicals are naturally produced in the body, but environmental factors such as these can significantly increase their production:
- UV radiation
- Pollution
- Smoking
- Stress
- Poor diet
- Blue light exposure
When free radicals build up, they create a process known as oxidative stress, which damages skin cells, proteins, and collagen. Over time, this contributes to:
- Premature ageing
- Fine lines and wrinkles
- Loss of firmness
- Uneven skin tone
- Dehydration
- Inflammation
- Dullness
Antioxidants help neutralise free radicals before they can damage the skin. [1]
How do antioxidants interact with the skin?
The skin is constantly exposed to environmental stressors, making it the body’s first line of defence. Antioxidants work on both the surface and deeper layers of the skin to support and protect its natural functions.
1. Protection against environmental damage
One of the primary roles of antioxidants is helping defend the skin against external aggressors such as UV rays and pollution. UV exposure generates reactive oxygen species (ROS), which can damage DNA, collagen, and skin lipids. While antioxidants are not a replacement for SPF, they work alongside sunscreen to provide enhanced protection against environmental stress. [2]
2. Supporting collagen production
Collagen is the protein responsible for keeping skin firm, smooth, and youthful-looking. Oxidative stress breaks down collagen fibres over time, accelerating visible ageing. Hebridean seaweed is naturally rich in powerful antioxidants called polyphenols and flavonoids, which help protect the skin from everyday environmental stressors such as pollution and UV exposure. These antioxidants work by neutralising free radicals - unstable molecules that can contribute to inflammation, dullness, and premature signs of ageing like fine lines and wrinkles.
At ishga, our unique Hebridean seaweed extract is used throughout our results-driven skincare range. Rich in water-soluble antioxidant compounds, it is designed to absorb effectively into the skin, helping to support a clearer, smoother, and more radiant complexion.
3. Reducing inflammation
Inflammation is closely linked to skin sensitivity, redness, and premature ageing. Antioxidants can help calm inflammatory pathways within the skin.
Marine antioxidants found in seaweed are particularly powerful due to their ability to survive in harsh ocean environments. [3] Naturally resilient, seaweed is constantly exposed to sun, wind, tides, and changing environmental conditions. To survive in these challenging surroundings, it develops powerful antioxidant compounds called polyphenols, which help protect against free radicals and environmental stress. Hebridean seaweed extract is especially unique because seaweed grown in colder waters has been shown to contain higher levels of fucoxanthin and omega-3 fatty acids compared to seaweed from warmer climates.
4. Strengthening the skin barrier
Seaweed is naturally rich in polyphenols, powerful antioxidants that help protect the skin from oxidative stress and environmental damage. By neutralising free radicals, which are a major contributor to premature ageing, marine polyphenols help support a stronger, healthier skin barrier while promoting hydration and overall skin resilience. Research also suggests these bioactive compounds can enhance the skin’s natural defence mechanisms, helping to improve the appearance and condition of the skin over time. [4]
Antioxidants and seaweed skincare
Antioxidants do far more than simply “protect” the skin, they actively support skin health at a cellular level. By helping neutralise free radicals, reduce oxidative stress, support collagen production, and strengthen the skin barrier, antioxidants play a vital role in maintaining healthy, glowing skin.
Incorporating antioxidant-rich products into your skincare routine can help transform the appearance of tired or environmentally stressed skin while supporting long-term skin health naturally. At ishga, we harness the power of antioxidant-rich Hebridean seaweed extract to create results-driven skincare, backed by science.
