Dish soap handles sunscreen stains on swimsuits.

Yes, just use a drop of mild dish soap. Sunscreen stains are oil-based, so dish soap breaks them down without wrecking swimsuit fabric.

Squirt a tiny bit (Dawn or similar) directly on the stain, rub gently with your fingers, then rinse with cool water. That’s usually enough. For older stains, let the soap sit 10 minutes before rinsing.

Avoid hot water, bleach, or harsh stain removers — they’ll fade colors and wreck elastic. Hand wash the whole suit in cold water after, or toss it in a delicates bag on the shortest cold cycle.

You really don’t need special “sunscreen stain” products for this. Dish soap and patience beat most of them.

Your swimsuit will outlast the stain.