Soft BIAB™ is the formula that started a movement. Designed to strengthen and support natural nails, it offers flexibility, comfort and a smooth self-levelling application that techs love. Because it’s a soak-off builder gel, it’s ideal for clients who enjoy changing their colours often or prefer a lighter, natural nail feel.

Soft BIAB™ is particularly suited to:

• Natural nail overlays
• Short to medium-length nails
• Flexible or naturally healthy nails
• Clients focused on growth and nail health

Its gentle soak-off removal means clients can maintain their nails long term without over-filing.

Hard BIAB™ takes strength to the next level. Created for clients who need more support — whether due to brittleness, breakage or lifestyle — this formula offers increased rigidity, greater sculpting ability and exceptional durability.

Unlike Soft BIAB™, Hard BIAB™ is a file-off system, designed to maintain structure and support through infills. It behaves like a traditional hard gel but retains TGB’s signature self-levelling finish.

Hard BIAB™ is ideal for:

• Sculpting or extending the nail
• Medium to long enhancements
• Nails that bend, split or snap easily
• Clients who want long-lasting, resilient results

While both formulas share TGB’s high performance, self-levelling technology, they behave differently in the salon.

Soft BIAB™ offers flexible strength. It moves with the natural nail, making it perfect for overlays. Its ability to soak off makes maintenance gentle and efficient.

Hard BIAB™, on the other hand, delivers robust, reinforced structure. It’s far more rigid than Soft BIAB™, making it better suited to clients who frequently experience breakages or want longer enhancements. Because it can be filed off, the structure remains stable during infills, allowing for longer wear and more sculptural work.

Put simply:

• If your client values flexibility, comfort and natural nnail strength, Soft BIAB™ is your go toto.
• If they need durability, structure and the option for extensions, Hard BIAB™ is the superior choice.

While both formulas share TGB’s high performance, self-levelling technology, they behave differently in the salon.

Soft BIAB™ offers flexible strength. It moves with the natural nail, making it perfect for overlays. Its ability to soak off makes maintenance gentle and efficient.

Choose Soft BIAB™ if your client:

• Wants a natural, flexible overlay
• Prefers a soak-off system
• Frequently changes their nail colour
• Has naturally healthy or bendy nails
• Is focused on growing their natural length

Choose Hard BIAB™ if your client:

• Needs more structural support
• Wants sculpted length beyond their natural free edge
• Has weak, brittle or thin nails
• Works with their hands and needs enhanced durability
• Prefers infills instead of removal

• TGB invented BIAB™ — the original Builder In A Bottle™ that inspired the global builder boom.
• Advanced self-levelling formulas make application smooth, fast and consistent.
• An inclusive shade range across nudes, naturals and cover tones enhances every nail service.
• Vegan and cruelty-free, aligning high performance with ethical beauty standards.

With both Soft BIAB™ and Hard BIAB™ in your kit, you can personalise every service to your client’s nail type, lifestyle and goals. Whether you’re strengthening natural nails or creating sculpted length, TGB’s builder systems — available at Ellisons — give you the flexibility and performance you need.

Discover the full TGB BIAB™ and Hard BIAB™ range at Ellisons today.
Your strongest nail services start with the brand that invented BIAB™.