How long do Shellac nails last?

[IHopeYouStepOnALegoPiece]

I've got three events over three consecutive weekends and if I could get away with only having my nails done once then that'd be grand!

And can anyone recommend somewhere in london (preferably North)
Tia!

Last 2 weeks tops for me. I don't live there anymore but I used to go to Oxygene in Crouch End. They had a branch in Muswell Hill too.

They can last for more than 3 weeks, but as your nails grow, you get an unvarnished bit, which isn't very attractive. (Unvarnished nails aren't unattractive, but an unvarnished stripe on varnished nails is.)

If I were you, I would have them done again between events 2 and 3.

I have mine done every 3 weeks, but by the third week they are starting to look scruffy with the regrowth.

Three weekends is only just over two weeks if you get them done on the first Friday. I've only had them a few times, but regrowth has started to be noticeable after a fortnight, so maybe go for a light colour or French where it won't be so noticeable.