Sun care doesn't stop when the sun goes down. Discover how CORUM's advanced Vitamin C technologies provide a two-dimensional strategy to help control oxy-ageing beyond UV protection.
A little sunshine never feels like a problem. In fact, it often feels like exactly what your skin needs. But what feels good on the surface can tell a different story underneath. A few hours in the sun rarely leaves an immediate mark. No burning, no visible damage, just a gentle warmth that fades as the day ends. By night, it’s easy to assume the skin has returned to a safe, balanced state. But beneath the surface, the story does not end with sunset.
UV exposure during the day triggers the formation of reactive oxygen species (ROS), unstable molecules that continue disrupting cellular balance long after exposure ends. Rather than disappearing with daylight, these oxidative reactions persist within the skin, weakening structural components, impairing repair mechanisms, and gradually accelerating visible ageing.
Night after night, these invisible reactions continue and oxidative burden accumulates. Over time, these repeated micro-damages manifest as fine lines, uneven tone, dullness, loss of elasticity, pigmentation irregularities, and weakened resilience. This is not the result of a single moment of sun exposure, but the cumulative consequence of continuous ROS-driven damage that extends far beyond daylight hours. This is Oxy-Ageing.
The Sun May Set—But Oxidative Stress Remains:
“Is sunscreen alone enough if oxidative stress continues long after UV exposure?”
The answer is no.
Traditional sun care is designed to reduce UV damage during exposure. However, once ROS are generated, oxidative reactions continue beneath the skin long after sunlight disappears. Sunlight is one of the most powerful external triggers of oxidative stress. Excessive ROS generation initiates a cascade of biological events, including:
Persistent UV-induced oxidative stress gradually compromises the skin's ability to protect itself, repair damage, and respond to environmental challenges. Over time, these invisible biological changes accelerate premature skin ageing. Effective sun care should therefore extend beyond UV protection. It should also help control the oxidative damage that continues after exposure has ended.
To effectively manage oxy-ageing, antioxidant strategies should work at multiple stages. From minimizing oxidative damage to strengthening the skin's intrinsic defense against persistent oxidative stress.
A Smarter Approach to Oxy-Ageing: A Two-Dimensional Vitamin C Strategy
Oxy-ageing is a multi-stage biological process. Therefore, a single antioxidant mechanism is often insufficient. Instead, an effective strategy should address both the external oxidative challenge and the skin's intrinsic defense system. CORUM's advanced Vitamin C technologies aim to help complement each other across these two dimensions:
To address these complementary aspects of oxy-ageing, CORUM's Et-VC® and NeoC101™ provide protection through two distinct biological mechanisms:
⭐ External Protection with Et-VC®: Stop Oxidative Damage Before It Starts
The first step in controlling oxy-ageing is preventing UV-induced excessive oxidative stress before it spreads throughout the skin. Et-VC® acts as a first line of defense against ROS generated by UV radiation and other external stressors. It protects skin through three complementary mechanisms:
1. Direct ROS Reduction
Et-VC® significantly reduced intracellular ROS generation:
Beyond UV protection, Et-VC® also demonstrated protective effects against oxidative stress induced by urban dust, cigarette smoke, and diesel particulate matter, reinforcing its role as a comprehensive environmental shield.
2. Inflammation Control
Oxidative stress rapidly triggers inflammatory signaling that further amplifies skin damage. Et-VC® helps interrupt this process by reducing UVB-induced inflammatory mediators:
It also reduced blue light-induced inflammatory responses:
3. DNA Protection
Beyond ROS scavenging and reducing inflammation, Et-VC® protects cellular DNA from UV-induced damage, helping preserve genomic integrity and minimize cumulative oxidative injury:
By controlling oxidative stress at its source, Et-VC® helps prevent the initiation of the oxy-ageing cascade.
⭐ Intrinsic Defense with NeoC101™: Strengthening Cellular Defense Against Oxidative Stress
NeoC101™ complements direct antioxidant protection by strengthening the skin's intrinsic defense mechanisms against UV-induced oxidative stress.
1. Direct Antioxidant Activity
NeoC101™ demonstrated strong antioxidant activity, with an EC50 approximately 1.82 times lower than Vitamin C in DPPH assays. This demonstrates NeoC101™'s strong free radical scavenging capacity, providing direct antioxidant protection against oxidative stress.
2. Mitochondrial Support
Oxidative stress compromise’s mitochondrial function, reducing the skin's ability to maintain healthy cellular activity. NeoC101™ helps restore mitochondrial antioxidant defense, which is often disrupted under oxidative stress conditions:
3. Endogenous Cellular Defense
Rather than relying solely on direct antioxidant activity, NeoC101™ also strengthens the skin's own protective network. NeoC101™ also activates the skin’s endogenous defense system through the Nrf2 pathway, reinforcing long-term resilience against oxidative damage:
4. Breaking the Oxidative-Inflammatory Cycle
Persistent oxidative stress and inflammation reinforce one another. To further break the cycle, NeoC101™ exhibits potent anti-inflammatory effects:
Together, these mechanisms strengthen the skin's intrinsic defense network, supporting healthier cellular function under persistent UV-induced oxidative stress.
Sun Care 2.0: Beyond UV Protection
Sun care should not end even when we're not exposed to UV. While sunscreens help reduce UV damage during the day, oxidative stress continues long after sunlight disappears. Controlling oxy-ageing therefore requires more than UV filters alone. It requires a strategy that both minimizes oxidative damage and strengthens the skin's intrinsic defense against persistent oxidative stress.
Rather than performing the same function, Et-VC® and NeoC101™ target different stages of the oxidative stress response, providing complementary protection against oxy-ageing. Et-VC® provides external protection by limiting UV-induced oxidative damage at its source, while NeoC101™ reinforces the skin's intrinsic defense to better withstand persistent oxidative stress. Together, they provide a complementary Vitamin C strategy for controlling oxy-ageing before cumulative damage becomes visible.
The best sun care is not only about protecting skin from everyday sunlight but also defending it against the invisible oxidative damage that continues long after the sun goes down. C You Glow 24/7.
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