Itching, burning, swelling and redness might be caused by the volatile substances of cyanoacrylate, which contains in Lash Adhesives. Developing an allergy can be sudden and unexpected (as any other allergy), however the possibility of it is quite little.
Make sure that you have a patch test done 48 hours prior the procedure . However, it's good to know, that patch test might not always show the reaction, as exposure to the adhesive is too little. Although, very sensitive people will react even to the small amount of it. .
Artificial eyelashes, which are made from PBT fiber do not consist any allergens. All artificial lashes used for eyelash extensions are made from strands of synthetic PBT (polybutylene terephthalate) polymer. .
We don’t use any real fur eyelashes on humans - that's another myth or marketing trick to attract certain customers. Eyelashes can be called Mink or Silk, but it has nothing to do with those words - same PBT material is used - Silk - shiny & Mink - more matt - that's it