Was so keen to post this solution, - I'm a City and Guilds qualified beautician, requirements pretty stringent back in the day but that's not my profession now. Have always applied nail tips for myself , painted with gel varnish and cured but were never too strong and often broke, - my own nails are pretty weak and poor , then discovered Polygel and used with nail forms, - wow! great strong nails and looked fab until the allergic reactions, chronic itching, soggy nail bed under the nail form which didn't seem to grow, and even black mould growing under one!!, ...devastated. Tried everything, paid a fortune for hypoallergenic Swiss product but nothing worked.After a lot of pain and frustration I've worked it out, ...this stuff should not be in contact with the skin at all and certainly not close to a short nail, - so went back to plan A, fitted a nail tip, filed it down making sure it covered all exposed skin at the corners and and nail tip. Then buffed and applied a coat of gel builder, - keeping it away from skin, then usual prep procedure and then the Polygel and nail form. Use a nail dust vac, scrub away residue after final procedure , any concerns or close contact areas apply "skin glove" type barriers, I think Avon, - even Screwfix do one, - so got my talons back after months of grief!, - just don't let that stuff or dust from it get near your skin or nail bed, - hope this helps!