OPI/ Nails Inc / Leighton Denny - which lasts longest?

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I'm not a nail varnish wearer and I know ALOT depends on preperation and the correct application.
But which lasts the longest ?

My DD loves all the High Stree nail varnishes which I find don't last (and she changes her nail polish so often as well)

But I'm going away for a week. I'll be swimming, using suncreams etc,

I want to do one manicure/pedicure and hopefully have it last for a week.
I'm a pink/neutral fan, no lairy blue or green or orange for me.

I'd buy a mini bottle and take some remover wipes just in case.

(TKMaxx has special offers sometimes IIRC)

Not Nails Inc, they have some lovely colours but they don't last on me.

I find Essie with a topcoat lasts best.

Leighton Denny chips immediately when I have used it - would never buy it again.

The Rimmel pro lasts well over a week for me.

None of them consistently.
I buy all brands from Nails Inc/Leighton Dernny/Illamasqua, and find they are all hit and miss.
I've had Poundland cheapies last well, and dear ones chip, and the other way round.

opi all the way
base coat
2 coats of colour
top coat
would happily last a 2 week holiday on the toes

OPI lasts longest on me. Some nails inc colours last well but they're v inconsistent in quality. Essie lasts brilliantly. Not enough experience with LD to know. Nails Inc topcoats make everything last ages.

Get a Shellac on your fingers and toes. It will definitely last the week. Have a great holiday

I've just tried Maybelline Colour Show for the first time and I was pleasantly surprised with how well it's lasted.