Pigmentation, lack of elasticity and tone, wrinkles, vascular changes, neoplasms, dryness, increased vulnerability – typical signs of photoaging of the skin, which is a consequence of chronic sun exposure. Therefore, high-quality skin protection from the sun is mandatory all year round.
For these purposes, products containing a sun protection factor (Sun Protection Factor) – SPF.
In this article, estet-portal.com will tell you what nuances should be taken into account when choosing sunscreens in order to reliably protect the skin from photoaging.
Why skin needs sun protection all year round
Ultraviolet damages the skin to varying degrees, the effects of prolonged sun exposure can include both premature wrinkles and skin cancer. The degree of damage to the DNA of skin cells by free radicals increases over time, mutations accumulate, as a result of which cells cannot function properly, and the risk of malignant neoplasms increases.
The intensity of solar radiation, as well as the duration of exposure to the sun – the main factors influencing the degree of skin photodamage.
The skin is mainly affected by two types of rays – UVA and UVB (Figure 1). The third type of sunbeams – UVC does not overcome the ozone layer.
Sunscreens used to provide protection only against UVB rays, but UVA rays penetrate deeper into the skin and also cause genetic damage to skin cells, accelerating the aging process and increasing the risk of skin cancer.
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Spectrum A rays are more dangerous because, unlike spectrum B radiation, they are able to break through clouds and glass and make up 95% of all rays that reach the Earth's surface. During the daytime throughout the year, the degree of their negative impact on the skin remains unchanged.
Physical or chemical filter: which is more effective in protecting the skin from the sun
There are two types of sun protection factors:
• Physical (titanium dioxide, zinc oxide) SPFs remain on the surface of the skin and reflect the sun's rays;
• Chemical (Avobenzone, Octinoxate, Oxybenzone) SPFs are absorbed by the skin and then absorb the UV, convert it into heat and release the heat to the outside.
Physical sun protection factors are easily washed off with water, do not cause allergic reactions because they do not penetrate the skin.
Chemical SPFs can cause allergic reactions, but they provide better protection in conditions such as sweating or being in the water.
To provide maximum UV protection, different SPF factors are often combined.
The set of filters included in a sunscreen product must guarantee protection for the full range of UVB and UVA rays: from 290nm to 400nm.
Photoprotection filters must be:
1. PHOTO-STABLE: have aromatic rings in their molecules that absorb ultraviolet rays, blocking their energy. In fact, photostable filters undergo conformational changes (changes in the shape and arrangement of the molecule) capable of returning the absorbed energy in thermal form. The filter after activation returns to the ground state without losing its absorbing capacity. The return of the molecule to its original conformation occurs with the conversion of the harmful absorbed solar energy into harmless thermal energy.
2. NON-ABSORBABLE: filters must remain on the surface of the epidermis, they must not penetrate in any way, and this applies to both chemical and physical filters. This function is guaranteed by the composition of the product, which does not allow filters to pass through the skin. In the case when this happens, there is a high probability of serious consequences even in internal organs such as the kidneys. The lack of a filter nonabsorption guarantee is the main reason why many dermatologists today discourage the use of sunscreen.
3. POWERFUL: The set of filters included in a sunscreen product must guarantee protection for the full range of UVB and UVA rays: from 290nm to 400nm.
Maximum protection against free radicals produced by sunlight is provided by the Chrono Age® Sun line from the Italian brand Dermophisiologique. It is important to note that the Italian SPF 50+ is almost an SPF of 99, because according to European regulations it is forbidden to list a factor greater than 50+ on sunscreens.
Chrono Age® Sun – stable and powerful sun protection for all skin types
Chrono age® Sun – line Dermophisiologique, which aims to protect the skin from UVA and UVB rays, as well as repair damage. The products are characterized by high quality filters, non-absorbable photostable components and specific antioxidant, moisturizing and keratoplastic active ingredients to counteract dehydration, desquamation and aging of skin cells.
Chrono age® Sun is formulated to meet the essential dermatological guidelines for protecting skin from solar radiation. 4UV Defense® filter system has been selected taking into account the chemical and physical characteristics of each filter, resulting in the highest possible PHOTOSTABILITY and POWER OF PROTECTIVE FILTERS, as well as an excellent degree of protection against free radicals.
Chrono age® Sun– the highest possible PHOTOSTABILITY and POWER OF PROTECTIVE FILTERS, as well as an excellent degree of protection against free radicals.
Heavy Duty Protection Face Sunscreen SPF 50+
The latest generation sunscreen for the face, effectively protects the skin from UV radiation and premature photoaging. Has a soft texture, spreads easily without white mask effect.
Consists of mixed photostable sunscreens: organic and mineral, which guarantee full protection of a wide range of effects against UVA and UVB rays. And in combination with the MULTI DEFENCE™ protects skin from the negative effects of free radicals and restores the protective skin barrier, thus creating a global photoprotection.
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Isoquercetin provides high antioxidant protection, fights damage from photoaging.
Hyaluronic acid and Panthenol protect the skin from dehydration and superficial peeling, thus guaranteeing an even and long-lasting tan.
A new multi-active beauty product with a light texture.
Result: immediately after application, the skin is protected and the blocking effect of sunscreens is increased within a few minutes after application. Hydration of the skin is optimized, youthfulness of the skin is fully protected.
Sun Emulsion for Face & Body SPF 30
High protection liquid sun emulsion, ideal for face and body, has a comfortable velvety texture, spreads easily without the effect of a white mask.
Mixture of photostable sunscreen organic and mineral filters broad-spectrum guarantees globally certified protection against UVA and UVB rays.
MULTI DEFENCE™ prevents the formation of free radicals and restores the protective barrier of the skin.
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Panthenol, Shea butter, Trehalose promote the synthesis of ceramides, reduce flaking and superficial dehydration, which are the main causes of rapid tan loss.
Isoquercetin and Beta Glucan stimulate natural protective functions and counteract biological damage from solar radiation.
Result: immediately after applying the emulsion, a thin protective mantle is formed, which enhances the sun protection function and provides natural skin hydration. The skin is protected, the tan is even, golden.
Body Cream SPF 30 – high protection
Protective cream with a velvety texture. Gives the body softness and hydration, without the effect of oiliness. The 4UV Defense® filter system, thanks to the latest generation of non-absorbable filters, provides comprehensive protection against broad spectrum UVB and UVA rays.
The antioxidant and antibacterial action of quercetin, combined with hyaluronic acid and panthenol, provides comprehensive protection against photoaging damage. Ideal for all skin types.
Result: Stimulates a natural tan and makes the skin firm and radiant, while preventing redness, irritation and dehydration of the skin.
After-Sun Soothing Emulsion
Soothing nourishing cream-emulsion with a light texture and a delicate, pleasant aroma, gives the skin a velvety effect. Strengthens the protective barrier of the skin, has an antioxidant effect, restores damage from photoradiation.
Soothing, restoring and softening effect is due to the action of 18-Beta-Glycyrrhizic acid, Aloe, Calendula, unsaponifiable part of olive, wheat and soybean oils. Quickly relieves redness and irritation, stimulates the natural mechanisms of cellular regeneration of the skin after exposure to the sun.
Ideal for all skin types, also for sensitive and delicate skins.
Result: intensively soothes, moisturizes the skin, normalizes its natural balance.
Invisible SPF 50+ for sensitive areas
Sun stick with ultra-high protection SPF 50+ is designed specifically to protect the most sensitive areas. Invisible and transparent, ideal for scars, scars, skin blemishes, tattoos and permanent makeup.
With emollient beeswax and rice bran oil, combined with shea butter, the formula nourishes the skin, creating a long-lasting protective film, while ceramides III contribute to the restructuring of the outer protective barrier.
Fragmented low molecular weight hyaluronic acid with high penetration allows the skin to maintain its natural degree of hydration, while jojoba essential oil prevents the appearance of cold sores.
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UV protection is provided by the presence of hydroxyapatite, an innovative mineral active that acts as a physical filter in combination with broad-spectrum, photostable and non-absorbable chemical filters.
Ideal for protecting scars, scars, after mole removal, protects delicate areas (wings of the nose, around the eyes, lips) during peeling.
Chrono Age® Sun by Dermophisiologique, introduced by by Medissa-K, provides maximum sun protection for all skin types, all year round .
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