Sun exposure is necessary for many reasons. One of them is that thanks to skin exposure to solar radiation, our body can produce vitamin D naturally. But we must not forget that inadequate and unprotected sun exposure can lead to serious skin problems. So, how can we find the balance between sun and vitamin D?
Discover with Toskani how sunscreen affects vitamin D synthesis and how to use it correctly to obtain the necessary amount of vitamin D.
Why is vitamin D important?
Vitamin D is a fat-soluble micronutrient that performs multiple functions in the body. For example, it is crucial for calcium absorption, which in turn strengthens bones and prevents diseases related to bone health such as osteoporosis.
Vitamin D also plays an important role in modulating the immune system, muscle function, and cardiovascular health. In fact, vitamin D deficiency is associated with an increased risk of infections, autoimmune diseases, and even some types of cancer. In short, it is a hormone that is essential for overall health, so it is vital to maintain adequate levels from childhood to old age.
Relationship between the sun and vitamin D production
The main natural source of vitamin D is exposure to sunlight. When the skin is exposed to UVB rays, a process begins in which 7-dehydrocholesterol is converted into previtamin D3, and then into vitamin D3, which is then activated in the liver and kidneys. This mechanism is essential for the natural production of vitamin D. However, it must be balanced with protective measures to prevent sun damage.
It is important to understand that, although the sun and vitamin D are directly related, overexposure can cause photoaging, burns, and increase the risk of skin cancer.
What are normal vitamin D levels?
Vitamin D levels in the body are measured in nanograms per milliliter (ng/mL). According to the Spanish Association of Dietetics and Food Sciences (SEDCA), a level of 30 to 100 ng/mL is considered optimal for most people.
Therefore, vitamin D levels below 20 ng/mL are considered deficient, while levels above 50 ng/mL may be indicative of excessive supplementation or high sun exposure. A periodic blood test can give you information about the status of vitamin D in your body.
How does sunscreen affect vitamin D synthesis?
Given the relationship between sun exposure and vitamin D, there is often concern that using sunscreen may block vitamin D production by preventing UVB rays from activating the process in the skin. And while it is true that sunscreens reduce the penetration of UVB radiation, several studies show that proper use does not completely prevent the synthesis of this vitamin.
The key, as always, is to find a balance: use sunscreen to prevent skin damage while still getting a moderate amount of sunlight, which is necessary to produce vitamin D. In addition, most people also get vitamin D through diet or supplements, which can complement sun exposure.
Is it possible to use sunscreen and still get enough vitamin D?
Yes, it is possible to achieve a balance between sun protection and vitamin D synthesis. In fact, the innovative line of sunscreens from Toskani is designed to offer high photoprotection (SPF50+) without compromising the skin’s ability to synthesize vitamin D. One of the star products is the Sun Shield-D Body and Face Spray SPF50+. This spray sunscreen is broad spectrum, water resistant, and suitable for all skin types. In addition to providing very high photoprotection, it boosts vitamin D synthesis thanks to the active ingredient Lithops Cell Nectar.
Another essential product in this line of sunscreens from Toskani is the Sun Shiel-D Tinted Fluid Facial Cream SPF50+, which also incorporates this interesting vitamin D synthesis enhancer. Without a doubt, this is an ideal product for protecting the skin on your face, evening out skin tone, and providing luminosity and hydration.
As we have seen, the sun and vitamin D have a vital relationship for our health. Making this possible in a way that is safe for our skin is as simple as including moderate sun exposure, following a balanced diet, and using sunscreen properly, preferably with products that boost this necessary vitamin D synthesis.