Lipstick stains on a tempered glass outdoor table can be stubborn, but with the right approach, they can be removed without damaging the surface. Here are some effective methods:

1. Dish Soap and Warm Water: Mix a few drops of mild dish soap with warm water. Dip a soft cloth or sponge into the solution and gently scrub the stained area. Rinse with clean water and dry with a microfiber cloth.

2. Rubbing Alcohol or Nail Polish Remover: Apply a small amount of rubbing alcohol or acetone-free nail polish remover to a cotton ball. Dab the stain lightly, avoiding harsh scrubbing. Wipe clean with a damp cloth afterward.

3. Baking Soda Paste: Create a paste using baking soda and water. Apply it to the stain, let it sit for 5-10 minutes, then gently scrub with a soft cloth. Rinse thoroughly.

4. White Vinegar Solution: Mix equal parts white vinegar and water. Spray or dab the solution onto the stain, let it sit for a few minutes, then wipe clean.

5. Commercial Glass Cleaner: Use a non-abrasive glass cleaner for tough stains. Spray it on the stain and wipe with a lint-free cloth.

Always test any cleaning solution on a small, inconspicuous area first to ensure it doesn’t damage the glass. Avoid abrasive tools like steel wool, as they can scratch tempered glass. Regular maintenance and prompt stain treatment will keep your outdoor table looking pristine.