UVA rays and the invisible signs of aging - how does the sun destroy collagen?
Everyone has experienced coming back redder after a long day at the beach. The truth is, while sunburn is a temporary discomfort, skin aging is a long-term process that begins deep beneath the surface of the epidermis. The main reason for this is the insidious UVA rays, which are present year-round and penetrate clouds and glass, attacking the skin's structure without warning. Their effects lead to a progressive loss of collagen and elastin. Thus, the sun becomes the cause of the appearance of the first wrinkles and loss of density. Understanding this process is the first step towards proper skin care that will preserve its radiant appearance and prevent premature aging.
How do UVA rays penetrate the skin and why are they dangerous?
We often focus on UVB rays because they cause visible redness, but UVA rays are the real “enemy of youth.” They account for about 95% of the ultraviolet radiation that reaches the earth’s surface. Unlike other types, they penetrate deep, reaching the dermis. This is the layer that contains collagen and elastin, which are key to a firmer face. When these rays attack the tissues, they trigger the formation of free radicals that break down the supporting network of your face.
The danger lies in the fact that skin aging from the sun does not manifest itself immediately. While you are enjoying a nice tan, a process of photoaging is taking place deep down. For people with sensitive skin, this is a critical moment, since their protective barrier is more permeable and vulnerable. The lack of necessary protection allows radiation to damage skin cells, which in the long run leads to premature aging of the skin and a permanent change in its texture.
What is the dermal effect on skin cells?
At the cellular level, UVA radiation acts destructively, disrupting DNA structure and the ability to regenerate. When the rays reach fibroblasts - the cells responsible for collagen production, they slow down their metabolism. As a result, the skin loses its natural capacity to repair itself. Even small damages in youth accumulate and over time manifest as fine lines and dryness.
This dermal effect is particularly strong with prolonged exposure to the sun without appropriate anti-ageing facial sunscreen. The aging process is accelerated, as the integrity of the extracellular matrix is compromised. Once damaged, skin cells begin to produce less energy, making the epidermis thinner and more susceptible to irritation - a factor that is crucial for users with sensitive skin seeking maximum security.
How does the sun affect collagen and elasticity?
Collagen is the “scaffolding” of our face, which keeps it firm and voluminous. The problem is that the sun is the biggest enemy of this protein. Under the influence of constant UVA rays, specific enzymes (metalloproteinases) are activated in the tissues, which lead to the progressive destruction of collagen. These enzymes become overactive and begin to break down even healthy structures. This makes the skin structure looser and less resistant to gravity, changing the way the face looks.
The loss of these important components means that the skin loses its natural density. In young people, who still have a high production of these proteins, the damage is initially invisible, but it accumulates. For people with sensitive skin, this destruction is often accompanied by dryness and a feeling of tightness, since a healthy collagen layer is also responsible for properly retaining moisture in the deeper layers.
From loss of elasticity to the appearance of fine lines and wrinkles
When the critical mass of elastic fibers decreases, the visible loss of the tight contour occurs. At this point, the elasticity of the skin is compromised and it can no longer "return" to its original state after facial expressions or stretching. This is where fine lines appear, which are the first clear signal that skin aging has entered an active phase. If measures are not taken in time, these lines deepen and turn into permanent wrinkles.
To counteract this, regular hydration and the use of products that not only protect but also soothe are important. The skin becomes less elastic and thinner, making it more susceptible to external influences. The skin aging process first manifests itself in the most mobile areas of the face. Therefore, prevention through Anti-age facial sunscreen is crucial for restoring the skin and maintaining a fresh look for a longer time.
What are the invisible signs of skin aging?
We often think that the skin starts to age when we notice the first deep line in the mirror. The truth is that visible aging is the last phase of a long process that takes place deep down. Before the definitive signs of skin aging from the sun appear, it begins to send discrete signals. One of them is a change in texture - it becomes rougher to the touch, and the complexion - more and more uneven.
Another "hidden" symptom is a change in the hydrolipid balance. You may notice an abnormal production of sebum or the appearance of enlarged pores that were not previously characteristic of you. Visible signs of aging are actually the result of micro-damage in the deeper layer of the skin, caused by the accumulation of UV radiation. When the skin begins to lose its ability to regenerate quickly, these are the first signs that its barrier function is weakening.
What are the main causes of skin aging according to dermatologists?
Specialists divide the process into two main types – intrinsic and extrinsic. Although skin aging is a natural process related to aging and genetics, it represents only a small part of the final result. According to dermatologists, external factors are responsible for nearly 80% of changes on the face. Among them, the biggest cause of skin aging is the so-called photoaging – the result of cumulative exposure to the sun without protection.
Solar radiation is among those factors of skin aging that act directly. It accelerates the aging process by causing oxidative stress. This damages the skin’s ability to repair itself. Extrinsic causes of skin aging are exacerbated by the urban environment, which includes pollution and blue light from the ubiquitous screens. That is why daily skin care is mandatory. Understanding these underlying causes of aging helps us choose a strategy that doesn't just mask the problem, but acts at the cellular level to protect the skin from aging.
Can we slow down skin aging through proper care?
The good news is that although time does not stand still, you can significantly slow down skin aging by limiting the negative impact of the environment. The key lies in consistency and the use of products with broad-spectrum protection. The products from the Sun Like series, enriched with hyaluronic acid and a vitamin complex, block ultraviolet radiation and hydrate the skin, supporting its elasticity.
When you choose a quality Anti-age facial sunscreen, you are actually investing in the good appearance of your skin in the future. A properly selected formula limits premature aging and contributes to reducing the visible signs of changes in texture. It is important to understand that the skin accelerates its renewal when it is protected.
Why do the areas around the eyes, mouth and décolleté age faster?
These areas are extremely delicate, as the skin there is much thinner and contains almost no sebaceous glands. The lack of natural sebum production makes them the first victims of dehydration and external influences. We often forget to apply a protective product to the décolleté, and it is there that the signs of skin aging appear earliest in the form of pigmentation and sagging.
The eyes and mouth are subjected to constant mimic activity, which, combined with sun exposure, leads to the skin sagging more quickly and the formation of “crow’s feet”. To slow down the signs of aging in these critical sectors, it is necessary to use formulas that keep the skin firm by nourishing it. Regular application of sunscreen to these areas prevents the appearance of signs of aging and protects the fine collagen fibers from destruction.
How to choose the right anti-aging skin care?
Choosing the right anti-aging cosmetics is not a complicated process if you know what to look for on the label. It is important that the product offers good broad-spectrum filters that do not irritate the epidermis. Sun Like formulas are developed with this very purpose in mind – to provide reliable skin protection, while hydrating and maintaining good skin elasticity. For daily use in an urban environment, we recommend choosing a product that absorbs quickly and does not leave a greasy film.
What is the role of antioxidants in the skin aging process?
When we are exposed to the sun, free radicals are generated in our tissues – unstable molecules that are a major factor in its aging. This is where powerful antioxidants come to the rescue. They neutralize the harmful effects of reactive oxygen molecules and thus protect skin structures from excessive oxidative stress, supporting the natural regeneration of the skin.
Integrating antioxidants (like Vitamin E) in combination with a high SPF is the “gold standard” for reducing the visible signs of aging. These ingredients help the skin’s surface look smooth while simultaneously stimulating the production of collagen and elastin in the dermis. This way, you are supporting your skin’s ability to fight the signs of aging.
What to remember about your skin health?
UVA rays are everywhere. They pass through clouds and windows, and are a major factor in skin aging throughout the day.
Prevention is key. Protection against skin aging begins before the first wrinkles appear.
Specific care. Don't forget the décolleté and areas around the eyes and mouth, where the skin loses its elasticity the fastest.
Hydration and protection. Use products that combine SPF with moisturizing ingredients to prevent dryness and the appearance of wrinkles.
Unprotected sun exposure directly damages the structure of the skin, so rely on quality Anti-age sun protection.
Author: Desislava Frangova


