I have been going down a bio ceramic rabbit hole after realising I am able to to source it from Teraganix.

Have you tried out these or something similar? nostr:nprofile1qy28wumn8ghj7un9d3shjctzd3jjummjvuhsz9thwden5te0wfjkccte9e6xj6nv9eu8j730qythwumn8ghj7un9d3shjtnswf5k6ctv9ehx2ap0qyfhwumn8ghj76nddahhxefwwfhkx6mn9uq3wamnwvaz7tmjv4kxz7fwwvehstnnda3kjctv9uqzqxlfxfsk37h57hh3sac2k93lutpxhszf6gffsxrrwlxuqvald9s54zfyns

https://www.teraganix.com/products/em-ceramic-necklace?pr_prod_strat=pinned&pr_rec_id=48fb606c6&pr_rec_pid=4603555119185&pr_ref_pid=4603554791505&pr_seq=uniform