While manufactured sunscreens are generally safe for most people to use, some individuals may have an allergic reaction to certain ingredients in sunscreen. Here are some of the ingredients commonly found in sunscreens that may cause allergic reactions:
1. Fragrances: Many sunscreens contain fragrances to make them more appealing to consumers. However, these fragrances can cause skin irritation or allergic reactions in some people. 2. Chemical Filters: Some chemical filters commonly used in sunscreens, such as oxybenzone, avobenzone, and octocrylene, have been known to cause skin irritation or allergic reactions in some individuals. 3. Preservatives: Sunscreens often contain preservatives to prevent bacterial growth and extend their shelf life. However, some people may be sensitive to these preservatives, such as methylisothiazolinone and parabens. 4. PABA: Para-aminobenzoic acid (PABA) is an ingredient that was commonly used in sunscreens in the past, but it is now less frequently used due to concerns about skin irritation and allergic reactions. 5. Benzophenones: Some sunscreens contain benzophenones, which are UV-absorbing chemicals that can cause skin irritation or allergic reactions in some people.
It's important to note that allergic reactions to sunscreen ingredients are relatively rare. If you have sensitive skin or a history of allergies, it's a good idea to test a small patch of skin before using a new sunscreen. If you experience any redness, itching, or swelling, discontinue use of the product and consult with a healthcare professional.