Sunscreen shields your skin from damaging UV rays, but not all formulas are safe. According to Health Shots, potential side effects include irritation, breakouts, allergic reactions, and worsened hyperpigmentation.
Sunscreen is an essential part of any skincare routine, as it protects your skin from harmful UV rays, premature ageing, and even cancer. However, while most of us apply sunscreen without thinking twice, not all sunscreens are safe.
Some formulas can cause unexpected side effects that go beyond a simple rash, such as skin irritation and breakouts, allergic reactions, or even reduced vitamin D absorption. Knowing what to look out for can help you select the safest sunscreen option for your skin type and avoid hidden side effects.
What are unseen side effects of sunscreen?
Sunscreen is generally safe, but according to cosmetologist Dr. Mahnaz Jahan Begum, several unnoticed side effects include:
Some sunscreens, particularly chemical ones or those containing fragrances, can cause redness, stinging, or itching. People with sensitive skin may experience these reactions shortly after application, making their skin uncomfortable.
Certain ingredients in common sunscreens, such as oxybenzone or preservatives, can cause rashes, hives, or swelling in sensitive people. Even minor exposure can cause significant discomfort, necessitating the use of hypoallergenic alternatives.
Thick, greasy, or oil-based sunscreens can clog pores, resulting in pimples or blackheads. This is especially prevalent in oily or acne-prone skin types.
If sunscreen accidentally gets into your eyes, it can cause burning, redness, and excessive watering. It is best to apply with caution around the eyes and use formulations designed for sensitive areas.
In rare cases, sunscreen chemicals can make your skin more sensitive to sunlight rather than protecting it. Even with proper application, this can cause redness, rashes, and sunburn.
Some sunscreens can unintentionally exacerbate dark spots or melasma. Fragrance and alcohol may irritate melanin-rich skin, causing additional pigmentation. It is best to choose sunscreens that are free of irritants and contain iron oxides, which provide additional protection against visible light.
Sunscreen blocks UVB rays, which your skin requires to produce vitamin D naturally. While it is commonly assumed that sunscreen use causes vitamin D deficiency, studies show no clear link between regular sunscreen use and lower vitamin D levels, according to the Skin Cancer Organization. In fact, even people who use sunscreen on a daily basis can maintain adequate vitamin D levels.
