A face roller and guasha are beauty massage tools used for face and muscle massage.

Their benefits..
1. They stimulate the lymphatic system and blood circulation.
2. Help maximize the absorption of the facial oil, serum, cream or moisturizer.
3. Reduce puffiness of the skin, relieve the appearance of under-eye circles.
4. Brighten complexion, tighten pores and help reduce the appearance of fine lines and wrinkles.
5. Help you to relax and calm muscle tension.

You can put the facial roller and Guasha in the fridge for about 10 minutes before use to make it cooler for use on the skin and this helps to reduce morning puffiness and makes your skin feel refreshed.
I also suggest you wash your beauty skin care tools before and after use. You can use plain water to clean them.