BIAB Nails: The Ultimate Guide to the Nail Formula Taking Over TikTok

If you're into nail trends, you've probably heard about BIAB nails – the revolutionary formula that’s taken the beauty world by storm. From TikTok to A-list celebrities, this nail treatment has built a loyal fanbase for its long-lasting, strengthening effects. But what exactly is BIAB, and why is it so popular? Let’s break it all down.

What is BIAB?

BIAB (short for Builder in a Bottle) is a next-generation nail product that’s changing the game for those looking to grow and strengthen their natural nails. Originally launched in 2015 by The Gel Bottle, a professional vegan nail brand founded by Brighton-based nail technician Daisy Kalnina, BIAB has since become one of the most in-demand treatments in salons worldwide.

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Unlike traditional nail polishes, gels, or acrylics, BIAB is a soak-off soft gel that acts as an overlay, creating a strong protective layer that encourages natural nail growth. It’s thicker than gel polish but gentler than acrylics, making it the perfect middle ground for those who want durability without damage.

And the numbers speak for themselves – #BIAB has racked up over 480 million views on TikTok, with people showing off their BIAB manicures and incredible natural nail growth. Celebrities like JLo, Dua Lipa, and Kim Kardashian are also fans, proving that this formula is here to stay.

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How is BIAB Applied?

BIAB might look similar to gel manicures in terms of finish, but the application process is different. Here’s what to expect when you book a BIAB appointment at a salon:

Step 1: Nail Prep

Your nail tech will start by shaping your nails, buffing the surface, and pushing back the cuticles. Any oils or residue will be removed using pure acetone to ensure the best adhesion.

Step 2: Base Layer

A thin layer of BIAB or a rubber base (for clear or white shades) is applied to the natural nail and cured under a UV or LED lamp in a low-heat mode.

Step 3: Building the Nail

Here’s where BIAB really stands out. Instead of applying a thin polish layer, your nail tech will use a thick bead of BIAB gel, spreading it evenly from side to side while avoiding the cuticle. This step can be repeated for a more opaque finish and extra strength, curing each nail individually.

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Step 4: Refining & Buffing

After curing, the nails are wiped down with alcohol to remove any tacky residue. Your technician will then buff and shape the nails to achieve a smooth, glossy finish.

Step 5: Extras & Top Coat

BIAB can be worn alone for a natural, polished look, or you can layer gel colour or nail art over the top. To seal everything in, a high-shine top coat is applied.

How Long Does BIAB Take?

BIAB requires more precision than a standard gel manicure, so expect your appointment to take between 1 hour to 1 hour 30 minutes. The extra time spent on prepping and perfecting the application is what makes this treatment last longer.

BIAB vs. Shellac & Other Gels: What’s the Difference?

Unlike regular gel polish (such as Shellac), BIAB is a thicker, strengthening formula designed to act as a protective overlay. It contains built-in flexibility, which prevents nails from snapping and allows them to grow naturally.

BIAB isn’t a standard gel polish—it’s a soft-gel formula that can be used as an overlay, a strengthening base, or even as the final colour, finished with a high-shine top coat.

While both gel polish and BIAB require curing under a UV/LED lamp, BIAB is longer-lasting and doesn’t chip as easily, making it perfect for those looking for durability and strength.

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BIAB vs. Acrylics: Which One is Better?

Acrylic nails are made by mixing a liquid monomer with a powder polymer, creating a hard, structured nail extension. While acrylics are known for their durability, they can be harsh on natural nails, often requiring extensive buffing and filing.

BIAB, on the other hand, is a softer alternative that still offers strength and longevity but without the damage. 

If you're looking to grow out your natural nails while keeping them strong, BIAB is the better option.

Is BIAB Good for Your Nails?

Absolutely—when applied correctly! BIAB is designed to strengthen natural nails, acting as a flexible support layer that helps protect against breakages. According to The Gel Bottle:
BIAB should be used to mimic the natural nail’s apex, providing structure and preventing stress-related cracks.

Another big plus? In autumn 2023, The Gel Bottle launched a HEMA-free BIAB collection, removing one of the main allergens found in gel products, making it a safer option for sensitive nails.

How Long Does BIAB Last?

On average, BIAB lasts between 2-4 weeks, depending on your lifestyle and nail growth. For the best results, infill appointments are recommended instead of removing and reapplying each time.

Pro tip: After 3-4 BIAB appointments, a full soak-off and fresh set is advised to keep your nails in the best condition.

How Much Does BIAB Cost?

Prices for BIAB nails vary depending on location and your nail technician’s experience. However, as a general guide:

• Expect to pay at least £10 more than a standard gel manicure.
• In the UK, BIAB manicures typically range from £35 to £80.

Final Thoughts: Is BIAB Worth It?If you’re looking for a long-lasting, natural-looking manicure that helps your nails grow stronger without the damage of acrylics, then BIAB is definitely worth trying. It offers the best of both worlds—durability and flexibility—without compromising on style.
With celebrities and nail lovers raving about it, and millions of TikTok views proving its staying power, BIAB nails aren’t just a trend—they’re the future of manicures.

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Ready to Try BIAB? Book Your Appointment Today!Want to experience the benefits of BIAB for yourself? Visit The Brookside Beauty Salon in Blackburn with Darwen for expert BIAB manicures that leave your nails looking flawless and feeling stronger than ever. 
Book online 24/7 through Fresha and get ready to transform your nails!