I have always had trouble finding accessories nickel free but lately I discovered Blomdhal, a hypoallergenic jewelry brand.
The jewelry Blomdhal Mp are guaranteed nickel free 100% and have been realized in collaboration with specialists in dermatology.
Swarovski Elements crystals and pearls are been utilized.
The earrings are made of Medical Plastic (Plastic Medical Pure) and Titanium Medical. They are biocompatible, non-toxic, and non-allergenic.
There are seven collection in total and eight forms of earrings. The collections are inspired by the bright constellations: Alhena, Beta, Callisto, Tiara, Hermione, Hydra and Jupiter.
The package earrings, Clean Pack Blomdahl, ensures the hygiene until the opening.
Here are the earrings that I received for collaboration
I leave all links for info and contacts