When discussing anything to do with , pedicures, nails and polishes in my role as a beauty editor, there's one thing that I hear – and am asked about – over and over again: builder gel. Builder gel polish is harder and thicker than regular gel polish, making it ideal for those who find that their manicures often chip or break, or who are wanting to grow their natural nails.
While The Gel Bottle's version, ('Builder In A Bottle'), is perhaps the most famous, lots of professional nail polish brands do their own builder gel polish now, including the only brand I use, BioSculpture – and now there's even that you can do yourselves at home.
14 Day Mani – a nail polish system that lets you do gel manicures at home that last, as its name suggests, up to two weeks – has recently added to its line-up of polishes, giving added strength and durability with a salon-like finish, ideal for reinforcing weak nails or adding length. As a fully qualified nail technician, I was keen to try them out to see how they compare to my professional products when doing pedicures...
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First up, you'll need the kit, including the UV lamp, the top coat and, ideally, some of the other tools. You can get all this, plus two or four polish shades, with the – and now's a good time to shop, as it's reduced from £167 down to £94, saving you 42%. Alternatively there are a number of other bundles offering different shades and finishes, all currently on sale.
Equipment assembled and nails prepped and filed, 14 Day Mani recommend applying a thin layer of , £10, to the nail first to dry it out and help the polish adhere better (I personally don't have very oily nail plates so could skip this step, and just ensure the nail is clean with a swipe of nail polish remover instead).
cost £15 each and come with a built-in base coat so you can go straight in with two coats of your shade of polish (all very flattering neutrals). Application took me a while to get to grips with; the consistency of the polish is very thick and sticky, and I found it tricky to paint on a thin layer (my preferred finish), especially on my tiny toenails. However, with a bit of practice and a small polish brush to hand for touch-ups, I eventually managed to do a decent job, before setting my feet under to cure for 60 seconds after each coat.
The polish is also fairly self-levelling, which is ideal. To finish, you apply one coat of its No-Wipe Top Coat before a final cure.
I'll spare you the photos of my feet but I was super impressed with the finished result – , much stronger than your average gel polish – and, as someone who rarely veers away from neutrals, the shades are right up my street (I tried and ). The polish also removed much easier than salon builder gel, which often requires much e-filing and soaking.
This lasted for over four weeks on my toenails, as long as a professional pedicure. Even though the 14 Day Mani kit is an initial expense, with professional pedicures at my local salon costing around £40, I'll have covered the cost in just a few uses, and so it .
One thing to note is that I did find that, on a couple of fingernails, the polish either partially or completely lifted off after a few days, and the longest I got out of some of may nails was eight days. I think this is because 14 Day Mani advise 'capping' the nail edge with polish, and my nails are too short to do this; I think those with longer nails might not have this problem.

In summary, , and the result is almost as good as a professional pedicure.
Another popular at-home gel polish brand is Mylee, which sells ; you can .
Alternatively Manucurist is a system that gives , yet removes easily with just nail polish remover and cotton pads; no filing or soaking required. You can for £75.
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