Even though it’s mandatory in your toiletry bag, sunscreen still raises many questions about how and when to use it. At the invitation of Profuse, a dermocosmetics brand from Aché Laboratórios, dermatologist Glaucia Ferreira Wedy reveals ten myths and truths about this hot-day favorite.
Come with us!
I need to use sunscreen only on sunny days
Myth. Sunscreen should be applied daily, even on cloudy and rainy days. This is because, even if you cannot see them, the sun’s rays continue to fall and impact the skin.
I don’t need to use sunscreen indoors
Myth. “It’s important to use sunscreen indoors, as these places have high brightness, known as visible light, a type of radiation that can cause dark spots, burns, and skin aging,” explains the dermatologist.
The correct dose of sunscreen is three fingers
REAL. The SBD (Brazilian Society of Dermatology) recommends applying 2 mg of sunscreen per square centimeter, the equivalent of a teaspoon, on the face, neck and head. “A simple rule of thumb for applying the ideal amount is to place the product linearly across the three middle fingers of your hand,” says Dr. Glaucia.
It is essential to reapply the protector during the day
REAL. The product must be reapplied every three hours daily. However, in case of excessive sweating, prolonged exposure to the sun or contact with water, such as that of the sea or swimming pool, the recommendation is to reinforce sun protection every two hours.
The higher the SPF, the greater the protection
REAL. “Studies show that the absorption rate of UVB radiation is lower if the SPF of the sunscreen is higher. The duration of the protection will also be longer,” says the dermatologist. It’s worth mentioning that SBD’s recommendation is for FPS to be at least 30.
Black skin doesn’t need sunscreen
Myth. “Although black skin has a higher concentration of melanin, the pigment that gives the skin its color, it is not immune to changes caused by ultraviolet radiation in the DNA of cells, causing dark spots, such as melasma and postinflammatory hyperchromia, skin cancer, aging early, among other problems”, warns Dr. Glaucia.
I can’t put too much sunscreen on my face
Myth. According to the expert, sunscreen should be spread evenly on the skin as long as the correct quantity is respected.
Makeup and moisturizer with SPF are not a substitute for sunscreen
REAL. These products typically do not have high protection against UVA and UVB rays, visible light and infrared rays. “Furthermore, the amount of these products that people apply is usually not enough to achieve adequate protection,” adds the dermatologist.
Powder sunscreen does not replace cream
REAL. Although this category of sunscreens protects from the sun’s rays, there is no regulation regarding the quantity needed and effectiveness. Therefore it is necessary to use a liquid or cream protector before the powder version. However, it is recommended to reapply them during the day because they are easier to carry and apply.
I can’t use body protection on my face
Myth. The sun protection of both versions is the same. However, facial skin tends to be oilier, due to the greater number of sebaceous glands. “Face products tend to have oil, acne and moisture control ingredients suited to this region. Body protectors can be a little oilier,” finally says dermatologist Glaucia Ferreira Wedy.
Source: Terra
Ben Stock is a lifestyle journalist and author at Gossipify. He writes about topics such as health, wellness, travel, food and home decor. He provides practical advice and inspiration to improve well-being, keeps readers up to date with latest lifestyle news and trends, known for his engaging writing style, in-depth analysis and unique perspectives.
