People use "gel" as a catch-all, but BIAB and gel polish are not the same thing. One is a coat of colour. The other is a structural layer that changes how your nail behaves.
If you've ever booked a "gel manicure" expecting it to last and found it chipping within the week, this post clears up the confusion once and for all, from the chair at Apricot Nails in Hawthorn.
Gel Polish (a.k.a. Shellac): Colour, Not Structure
Gel polish often called shellac after the well-known brand, is essentially a durable coloured coating cured under a lamp. It's thin, glossy, and purely cosmetic. It doesn't add strength; it just sits on top of your nail looking nice for a week or two before the free edge starts to chip.
BIAB: A Builder That Works For Your Nail
Builder in a Bottle is a thicker, self-levelling gel with genuine structural integrity. Applied over the natural nail, it reinforces weak spots, adds a subtle apex for strength, and protects the nail as it grows. It can be worn clear for a natural look or topped with colour. Crucially, it lasts far longer without chipping or lifting.
💡 Quick rule of thumb: If your goal is simply colour for the weekend, gel polish is fine. If your goal is nails that grow stronger and survive real life for a month, you want BIAB.
Can You Put Gel Colour Over BIAB?
Yes — and this is the best of both worlds. Many clients wear a BIAB base for structure with a gel colour on top for the shade they want. You get the strength of a builder and the finish of a polish in one appointment.
Which Should You Book?
If your nails are healthy, strong, and you just want colour for a specific event, gel polish does the job (contact me to book this). If your nails are weak, peeling, prone to breaking, or you want longer wear with less maintenance, BIAB is the answer nine times out of ten. Not sure? The intake process I use means we'll assess your nails together before deciding — read how that works on the What to Expect page.
Frequently Asked Questions
Is BIAB the same as gel?
No. BIAB is a structural builder gel; standard gel polish is a thin cosmetic coating. BIAB is thicker, stronger and lasts longer.
Is BIAB the same as shellac?
No — shellac is a brand of gel polish (colour only). BIAB is a builder that adds strength and protection to the nail.
Does BIAB last longer than gel polish?
Yes, significantly. BIAB typically lasts 3–4 weeks versus 1–2 weeks for gel polish, thanks to its structural layer.
Can I have colour with BIAB?
Absolutely. BIAB can be worn clear or topped with any gel colour, giving you strength and shade in a single set.
Still unsure which suits your nails? The BIAB FAQs page has more, or book a 1:1 appointment and we'll decide together.