A. The chain has no effect. Each necklace coin or dog tag contains a sheet inside that converts harmful electromagnetic waves into beneficial electromagnetic waves.

A. There is no time limit for the effectiveness of EMC. The EMC sheet can be used almost permanently. However, if the pendant part is damaged, the EMC sheet inside will also be damaged and the effect will be lost.

A. There is no problem. The jewelry is plated with rhodium. Rhodium is chemically stable, resistant to acids and alkalis, and rarely oxidizes or discolors. Please note that in hot springs, the quality of the water can cause discoloration or alteration.

A. The jewelry is brass-plated with rhodium coating to prevent metal allergies, but if you are concerned, please refrain from wearing it.
In addition, all of the chains are made of 316L surgical stainless steel, so even those with allergies can wear them with confidence.
For more details, please see here ("Attention to Materials" page).

A. SEVENPLUS necklaces can be worn by people of all ages. Generally, children are more sensitive than adults and are therefore more susceptible to the effects of electromagnetic waves.

A. We recommend that you wear it every day if possible. We are exposed to electromagnetic waves on a daily basis. By wearing it every day, you will be less likely to feel unpleasant noise in your body, and you can expect further benefits.