Vermeil jewelry is durable and high in quality. In order to take care of your items, try to avoid wearing your vermeil in the following:
1- Bathing
2- Swimming
3- Applying skin/body care products(includes perfumes)
Store your vermeil separately in a storage bag to ensure a long-lasting shine.
Bonus tips:
When it's your body care routine time, apply your products first, let them dry, and then put your jewelry on. And finally, your gold vermeil jewelry should be the last thing you put on when getting dressed.