Free radicals are unstable molecules created by everyday environmental exposure – including UV radiation, pollution, blue light, poor diet and even chronic stress. Because they are missing an electron, free radicals seek stability by damaging healthy skin cells, triggering a process known as oxidative stress.
Over time, oxidative stress contributes to visible skin ageing and damage, including:
The challenge is that free radical damage begins long before it appears on the surface. By the time signs are visible, the skin has often been under attack for months – or even years.
Antioxidants are essential in protecting the skin from free radical damage. They work by neutralising free radicals before they can harm skin cells, effectively interrupting oxidative stress at a cellular level.
When used consistently, antioxidants help to:
At URBAN RETREAT, antioxidants are a cornerstone of our skincare philosophy – not an afterthought. Our formulations are designed to work in harmony with the skin, supporting its natural repair processes rather than overwhelming it.
Vitamin C is one of the most researched and effective antioxidants in skincare. In its active form, it helps brighten the complexion, support collagen production and defend against free radical damage.
However, Vitamin C is also one of the most unstable skincare ingredients.
When exposed to air, light or heat, Vitamin C oxidises. Once oxidised, it no longer delivers antioxidant protection – and in some cases, it can contribute to irritation and oxidative stress instead.
This is where many mass-market Vitamin C serums, including those commonly purchased on large online marketplaces such as Amazon, fall short.
These products often:
By the time they are applied, oxidation may already have begun.
This is why many people believe they “can’t use Vitamin C”, when in reality, the issue is formulation stability – not the ingredient itself.
Expert takeaway: Vitamin C doesn’t damage skin when it’s formulated correctly. Once oxidised, however, it can become ineffective and irritating.
Not all antioxidants – or Vitamin C formulas – are created equal. Just as important as the ingredient itself is how it is protected and delivered into the skin.
Exposure to air, light and environmental stressors can degrade active ingredients before they ever reach deeper skin layers. Without the right delivery system, even the most powerful antioxidants may never achieve their full potential.
All URBAN RETREAT skincare products use micro-encapsulation technology – an advanced delivery system designed to protect, stabilise and enhance active ingredients.
Micro-encapsulation works by enclosing actives within microscopic protective capsules. This allows them to:
The result is a time-released approach to skincare – delivering continuous antioxidant support throughout the day, exactly where the skin needs it most.
Learn more about micro-encapsulation →
Free radicals are unavoidable – but long-term skin damage doesn’t have to be.
By combining high-performance antioxidants with advanced micro-encapsulation technology, URBAN RETREAT skincare supports the skin at a cellular level, helping to protect, repair and future-proof it against everyday environmental aggressors.
The result is skin that looks stronger, healthier and more radiant – today and over time.
Why did my Vitamin C serum turn yellow or orange?
This is a sign of oxidation. When Vitamin C is exposed to air, light or heat, it degrades and loses its antioxidant effectiveness, which can also increase the risk of irritation.
Can oxidised Vitamin C damage my skin?
Oxidised Vitamin C isn’t dangerous, but it can be ineffective and irritating, particularly for sensitive or compromised skin. Instead of neutralising free radicals, it may contribute to oxidative stress.
Why does my Vitamin C serum sting?
Stinging may occur when Vitamin C has oxidised, is too strong for your skin, or hasn’t been formulated with proper stabilisation and delivery systems.
How can I tell if a Vitamin C product is well formulated?
Look for:
Free radicals accelerate skin ageing.
Antioxidants neutralise them.
Micro-encapsulation ensures they actually work.
This is skincare designed with intention – and backed by science.
