Back to Blog10 February 2026

What Is BIAB? And Why It Beats Gel and Acrylic

A BIAB manicure by Gels By Liz

If you have booked a manicure recently, you have almost certainly heard the term BIAB. It has quickly become the most requested nail treatment in the UK — but what actually is it, and why are so many people switching to it from gel polish and acrylics?

BIAB explained

BIAB stands for Builder in a Bottle. It is a soak-off builder gel that is thicker than standard gel polish but applied with a brush in the same way. That extra thickness lets it build a protective, slightly flexible layer over your natural nail — adding strength without the rigidity (or the damage) of acrylic.

Why BIAB beats acrylic and standard gel

  • It strengthens your natural nail rather than sitting on top of heavy extensions, so weak and brittle nails can grow underneath it.
  • It does not require aggressive filing of the natural nail the way acrylic does, which keeps your nail bed healthy.
  • It is lighter and more flexible than acrylic, so it feels more natural and is less prone to lifting or cracking.
  • Removal is by gentle soaking, not drilling or picking, which protects the nail surface.

Who is BIAB for?

BIAB suits almost everyone — whether you want a natural, barely-there overlay, a classic French tip, or a base for custom nail art. It is especially popular with anyone whose natural nails struggle to grow long without snapping.

Want to try it for yourself? We bring BIAB manicures straight to your door across Caterham and Surrey.

Book An AppointmentView Services