If you’re a gel or shellac manicure loyalist, chances are you’ve heard of BIAB or builder in a bottle. Gaining in popularity, BIAB is a type of manicure that aims to be as long-lasting and hard-wearing as acrylic nails, but without the traditional damage that can be associated with them.

But what are BIAB nails, and are they the right treatment for you? Plus, what’s actually the difference between builder gel and more traditional treatments like gel, Biosculpture, shellac and acrylics? Keep scrolling for everything you need to know…

BIAB (pronounced by-abb) stands for ‘builder in a bottle’ and was created by British gel nail polish brand The Gel Bottle. It’s basically a nail strengthening gel that can be built up to create a hard-wearing, shiny finish. Unlike gel or shellac polishes, BIAB is made of ingredients that work to strengthen and nourish the nail, so it helps to harden your natural nails while you wear it.

BIAB can be used alone, together with extensions or as a base underneath traditional gel polish to add extra strength. It’s available in a growing range of shades, so it can be used as a standalone polish or as a great base for nail art.  

BIAB nails are a great option for anyone looking to grow or strengthen their natural nails. It’s also a good choice for nail biters; the gel is much thicker and stronger than a standard polish, so it’s more resistant to biting. 

Like gel nails, BIAB tends to last around three to four weeks – sometimes longer. You’ll then have to revisit your salon to get it removed or infilled. 

With so many nail polish treatments available, things can get confusing. Shellac is a specific type of gel nail polish, developed by CND. It’s a liquid form of polish cured under a UV lamp for a longer-wearing finish – but, as any shellac or gel nails enthusiast will know, improper removal can leave your nails feeling weak. 

Acrylic nails are created using a liquid monomer and powder polymer, which is mixed carefully by your nail professional. They don’t need curing under a lamp but will require an electric file to remove them. 

BIAB, on the other hand, is a form of gel polish that has a stronger, more strengthening base. It’s cured under a lamp, with a thicker consistency than gel and is similarly soaked off or removed with an electric file (but it can take a little longer as the formula is quite tough). The main difference? It doesn’t damage your natural nail underneath. Hallelujah. 

BIAB nails are becoming more and more popular, so you might notice the treatment popping up in your local salon. If you’re London-based, nail salons including LB Studio,  Townhouse, Dryby, Soho House and Shoreditch Nails all offer the service. Prices depend on where you live, with cities generally costing more. The typical price range is £25 to £70.

Main image: Getty