BIAB nails: what they are and how to ask for them

What BIAB is

BIAB is a builder gel: thicker than gel polish, so it can be applied in a layer that gives the nail structure. The technician files the nail, applies the gel, shapes it so the nail has a smooth, slightly curved surface, and cures it under a lamp. Colour or a clear top coat goes over it.

The name comes from a product brand, and many salons now use "BIAB" for any builder gel applied over the natural nail. If you want the original product, ask the salon what they use.

BIAB vs gel polish vs acrylic

• Gel polish: a thin layer of colour. It does not strengthen the nail, and is the quickest to do and to remove.
• BIAB: a thicker builder gel over your own nail. It adds strength and a smooth surface, and the nail stays flexible.
• Acrylic: a liquid and powder mixed into a hard layer. It is built for length and strength, and is firmer than BIAB.

BIAB sits between gel polish and acrylic: more support than gel polish, a more natural feel than acrylic.

Who it suits

BIAB is a good fit if your nails are weak, bend or peel and you want to grow them, or if you want a natural-looking set with a bit of strength. It is not meant for building a lot of length: if you want long nails, ask the salon about extensions.

How to ask for it

Say BIAB, not "gel", because they are different services with different prices. A photo of the colour and the shape helps, and these four things avoid a surprise:

• New set or infill: a first appointment or a refresh of a set you already have.
• Colour: clear, a nude or a colour over the BIAB.
• Length and shape: short and natural, or a shape such as square, round or almond.
• Removal: if you have gel or acrylic on now, say so, because it has to come off first.

How long BIAB lasts

Most salons book a refresh (an infill) every few weeks as your nail grows and the gap at the cuticle appears. How long a set lasts depends on your nails, your work and how well it was applied, so ask the salon what they advise.

How BIAB is removed

Do not peel BIAB off: it can take layers of your natural nail with it. Ask the technician how they remove it. It is usually filed down, in some cases with soaking. Many people keep it on and have an infill rather than a full removal each time.

Find a nail salon near you

Not every salon does BIAB, so check the salon's own price list or ask before you book. Pick your city to see nail salons with their opening hours and online booking, taken from each salon's own website, or search by postcode.

Questions

Is BIAB the same as gel nails?

No. Gel polish is a thin layer of colour. BIAB is a thicker builder gel that strengthens the nail.

Is BIAB better than acrylic?

Neither is better. BIAB is more flexible and looks natural, acrylic is harder and is built for length.

Can I get BIAB on short nails?

Yes. It is often chosen for short nails because it adds strength without adding length.

Does BIAB damage nails?

Applied and removed properly, it should not. Damage usually comes from peeling it off or from poor filing, so choose a salon that is clear about how it removes it.