Do the necklaces that are suppose to help athletes in their game ever expire?

Question

like the ones major league league pitchers wear? here's a for example link.

Worn by players on field as part of the MLB Authentic Collection

This necklace features Phiten's Phild processed Aqua-Titanium, which has the ability to regulate the body's natural electric currents through cell ionization

Promotes muscle relaxation, pain and stress relief, fatigue reduction, blood circulation improvement thus helping prevent injury

http://shop.mlb.com/product/index.jsp?productId=3100681&cp=1452368.1452912.1485146

Answer 1

personally, i dont think they work.

xoxo♥

eliseee