Dermatologists have been advising their patients to avoid or limit sun exposure for many years; Because ultraviolet (UV) rays are the primary cause of skin cancers, external skin aging, skin wrinkles and irregular pigmentation (skin spotting and freckles). Cosmetic patients are a group that is open to learning about the harmful effects of the sun and methods of protection and is interested in the subject. Among all skin protective measures, patients should protect themselves from the sun and make this a form of behavior; They should be told that they will not waste money on cosmetic products and procedures.
When the current data is examined, there are no systemic effects among the side effects triggered by chemical sunscreens. However, there are side effects that occur on the local (cutaneous) skin such as contact dermatitis, irritant dermatitis, allergic, phototoxic, photoallergic reactions and hyperpigmentation (spot).
Carriers of sunscreens, especially oily ones, can exacerbate acne with UV contact. It may cause the formation of..
Chemical sunscreens that cause allergic contact dermatitis usually contain PABA, benzophenols, cinnamates and methoxybenzoyl methane..
Another point to remember; They are substances added to sunscreens, such as fragrances and preservatives:
Accordingly, allergic reactions may occur in sensitive people.
Another issue that needs to be clarified:
Sunscreens provide complete protection, increasing the frequency of sun contact and the length of contact time. No sunscreen can block all of the sun's rays. In fact, the FDA has not allowed the term sunblock to be written on the labels of sunscreen products for some time. Because in most sunscreens, protection is limited to the short wavelengths of UVB and UVA 2 (320 - 340 nm). The use of such products paradoxically increases exposure to long wavelength UVA (320 - 400 nm). UVA (320 - 400 nm) constitutes a significant portion of the UV rays reaching the earth's surface and is responsible for the development of skin cancer, photodermatitis, and other skin diseases activated by sunlight. It plays a role in the formation of .
Interestingly; The lowest protection against UVA-activated pigmentation is provided by sunscreens with an SPF value of 45-50. This shows that selective high SPF sunscreens cannot be used as the sole guide in comparing sunscreens recommended for UVA protection...
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