The Argentine Association of Pediatric Dermatology and other experts advise against combining insect repellents and sunscreens in a single formulation due to concerns over both efficacy and safety. Key points from their advice include:
- Sunscreen vs. Insect Repellent Application:
- Sunscreens require frequent reapplication to maintain their effectiveness throughout the day.
- Insect repellents provide protection for 4 to 8 hours and should not be applied as frequently to avoid potential toxicity.
- Efficacy Concerns:
- Combining these two products can decrease sunscreen effectiveness by reducing the sun protection factor (SPF).
- The combined formulation may increase the absorption of chemicals like DEET (a common ingredient in insect repellents), potentially leading to toxicity.
- Regulatory Stance:
- Regulatory agencies like the FDA and CDC do not recommend the use of combined insect repellent and sunscreen products.
- Some agencies have even suspended the marketing of such combined products until more evidence supporting their safety and efficacy becomes available.
- Recommended Practice:
- The recommended practice is to first apply sunscreen and allow it to absorb, then apply insect repellent separately, ensuring both products can perform optimally without compromising safety or effectiveness.
This guidance underscores the importance of using these products in a way that maximizes their effectiveness while minimizing any potential health risks.
Source: https://www.argentina.gob.ar/sites/default/files/informe_de_revision_rapida_protector_repelente_0.pdf
Region: Argentina
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January 2025
