Hard BIAB™: The Next Chapter for Builder Gel

We started the BIAB™ revolution. Now we’re writing the next chapter. 
 
Builder In A Bottle™ revolutionised the nail industry, empowering techs to guide clients towards longer, stronger natural nails. Since its launch, BIAB™ has become a staple for pros worldwide. Now, with Hard BIAB™ in your kit, you’ll unlock even more possibilities. Its superior strength allows for durable overlays and extended enhancements, all while maintaining the effortless application BIAB™ is known for.
 
Our Original & All-In-One BIAB™ formulas remains the go-to for natural nail overlays and is ideal for clients beginning their BIAB™ journey. Hard BIAB™, meanwhile, takes things to the next level — perfect for those ready to take their natural nails to new lengths. This isn’t about choosing one over the other, it’s about having the right tool for every client, every time. 

Hard Gel vs BIAB™ & The Hard BIAB™ Difference

Hard BIAB™ isn’t here to replace the BIAB™ you already know and love — it’s here to expand what’s possible. Think of it as the stronger, more structured sibling in the BIAB™ family. 

Both hard gel and BIAB™ are staples in every nail tech’s kit, each with its own purpose. Hard BIAB™ bridges the gap for BIAB™ clients who want extra length and durability, while maintaining the flexibility and ease of application that makes our iconic builder gel formula so popular.

Hard gel (i.e. GelPot) is perfect for natural nail overlays on long nails and for sculpting extensions. Applied with a brush from a pot, this file-off gel delivers strong, long-lasting results for extended nails.

BIAB™, the original TGB innovation, is ideal for strong overlays on short to mid-length nails. Applied straight from the bottle with a built-in brush, this soak-off builder gel is self-levelling and offers exceptional strength with minimal effort. 

Now, meet Hard BIAB™ — our file-off builder gel designed for ultra-strong, long extensions with the same ease of application you love. It’s perfect for BIAB™ clients who want extended overlays without sacrificing flexibility. Engineered for added strength, durability and structure, Hard BIAB™ is your go-to for sculpting, longer overlays, and supporting clients prone to breakages or seeking extra resilience.

With a built-in base for superior retention, Hard BIAB™ delivers over four weeks of chip-free, shrink-resistant wear. Due to its durable structure, Hard BIAB™ requires file-off removal. Although it’s designed to be used direct on the nail plate, it’s also fully compatible with all TGB Base Coats — offering nail techs the flexibility to opt for easier, gentler removal when preferred. 

If you weren’t already sold, Hard BIAB™ is also TPO & HEMA-free, bringing you more options and flexibility when catering for your client base. 

 
 

Meet the Shades

Hard BIAB™ launches with a curated edit of new timeless tones and best-selling Soft BIAB™ shades, each designed to suit every client and every style. 

10 shades you know and love: 

• Clear — The ultimate versatile base. 

• White — A crisp classic for French tips. 

• Milky — A sheer soft white. 

• 17 BIAB™ — A pale pink-peach. 

• 19 BIAB™ — A subtle beige with a blush undertone. 

• Dolly — A semi-sheer pink with a whisper of white. 

• Dreamer — A milky pastel pink. 

• Teddy — A dusty rose nude. 

• Demure — A barely-there sheer pink. 

• Fancy — A warm pastel pink. 

Two new timeless favourites: 

• Bonnie — A strawberry milkshake pink.

• Skye — A cool-toned lavender. 

Unlock the Best of BIAB™ for Every Client 

At TGB, we set the standard for builder gel, and now, there's a BIAB™ for every client. From first-time overlays to advanced enhancements, explore the full range and ensure your kit’s ready to meet every nail need with confidence. 

• All-In-One BIAB™ — Best for short to mid-length overlays. A soak-off formula with 50% less HEMA than our Original BIAB™. A great choice for clients with sensitivities who still want strength and a smooth finish. 

• Original BIAB™ — The cult classic. Perfect for short to mid-length natural nails, delivering long-lasting strength and a flawless finish. Great for clients who want durability with easy removal. Now available in over 60 shades. 

• Hard BIAB™ — For clients who have or want longer nails or need more structure. Strong enough for sculpting extensions and nail repairs, and thicker for more control when creating the perfect apex. The go-to for durability and length. 

Hard BIAB™ combines the strength and durability of a traditional hard gel with the effortless application you know and love from Builder In A Bottle™. If enhancements are your specialty but BIAB™ isn’t your preferred texture, explore our two other hard gels, crafted to suit different techniques and preferences, without compromising on performance. 

• GelPot — A brush-on hard gel, ideal for clients wanting strong overlays or sculpted extensions with a traditional hard-gel feel. Great for building length with flexibility. 

• ProForm™ — A HEMA-free hybrid acrygel paste that offers maximum control and drama. Perfect for advanced techs and clients wanting lightweight, bold, extra-long extensions. 

The Next Generation of BIAB™

The demand for longer, stronger, high-performance nails has never been louder. Hard BIAB™ is TGB's answer: 

• British innovation, global impact. 

• More strength. More length. Bottled. 

• The next chapter in the BIAB™ story. 

The future of BIAB™ has arrived. Shop the full collection and save for a limited time only — get all 12 Hard BIAB™ shades and save 25% (that’s 12 for the price of 8). Or, if you’ve got your eye on a select few faves, stock up on four of our new Hard BIAB™ shades for the price of three.* 

*T&Cs apply, offers available for a limited time only. See Terms & Conditions page