Gel, SNS, BIAB & Shellac: What’s The Difference?

One of the most common things our customers tell us is that they feel unsure about choosing between Gel, SNS, BIAB & Shellac. With so many options, it can be a little overwhelming. Each one comes with its own look, feel, and upkeep. 

That’s why we’ve put together this guide to make things simple and help you find the best match for your nails and your routine. Let’s dive in!

What Are the Most Popular Nail Systems Today?

These days, the most popular nail systems - BIAB (Builder in a Bottle), Shellac vs Gel, SNS, and BIO Sculpture Gel, each have their fan base for a reason. From the finish to the strength and upkeep, every system brings something different to the table, depending on what your nails need and how you live.

Up next, we’ll break them down one by one so you can see how they compare.

Image From Freepik

What Is BIAB (Builder In A Bottle)?

BIAB nails is a soak-off gel designed to strengthen and support your natural nails. It creates a smooth, natural-looking base that can be left as is or topped with gel polish. Loved for its durability and flexibility, it’s ideal if you're growing out your nails or want extra reinforcement without the heaviness of acrylics.

Best suited to short or mid-length nails, BIAB has become a go-to for those after a strong yet lightweight finish.

What Is Shellac?

Shellac is a hybrid between gel and traditional nail polish, offering the best of both. It gives you that glossy, salon-perfect finish but with a lightweight feel and easy application. Cured under a UV lamp, Shellac lasts up to two weeks without chipping and is gentle on the natural nail, great if you're after shine without the stress of damage.

Featuring The Nail Bar’s Gel Polish Service

What Are Gel Nails?

Gel nails use a gel-based polish that hardens under a UV or LED lamp. Known for their glossy finish and long-lasting wear, they’re a popular option for manicure nail gel treatments, typically lasting around three weeks. 

Whether applied over natural nails or extensions, they offer plenty of versatility but proper removal is essential to keep your nails healthy underneath.

Featuring The Nail Bar’s GELX Serivce

What Is SNS (Signature Nail System)?

SNS is a dipping powder system where your nails are coated in coloured powder between layers of bonding liquid. Often referred to as an SNS overlay, this technique is enriched with vitamins and calcium, making it a healthier alternative to some other options. 

Lightweight yet strong, SNS doesn’t require UV light to set and delivers a natural, durable finish that can last for weeks.

Featuring The Nail Bar’s Manicure & Pedicure Services

What Is BIO Sculpture Gel?

BIO gel nails are a salon-quality gel system designed with nail health in mind. It’s breathable, vegan-friendly, and kind to natural nails. Applied like regular polish and cured under a lamp, it offers a glossy, flexible finish while keeping your nails in great shape underneath.

Key Differences Between Gel, SNS, BIAB & Shellac

With so many nail systems available, it can be tricky to know which one suits your needs best. Here's a quick comparison to help you understand the key differences between Gel, SNS, BIAB, Shellac, and BIO.

Feature	Gel	SNS	BIAB	Shellac	BIO
Application Process	Brushed on, cured under lamp	Dipped into powder	Thicker gel, built up & cured	Applied like polish, UV cured	Brushed on, cured under lamp
Flexibility & Strength	Flexible and durable	Very strong, slightly rigid	Strong with natural flexibility	Most flexible, least strong	Flexible and gentle
Look/Finish	Glossy, high-shine	Smooth, slightly thicker look	Smooth, natural with slight volume	Light, sleek and shiny	Glossy, natural-looking finish
Removal Process	Soak-off with acetone	Soak-off (can take longer)	Soak-off or gentle file down	Quick and easy soak-off	Soak-off with minimal damage
Best For	Most nail types	Weaker nails	Short or brittle nails, nail growth	Healthy nails, low maintenance	Nail health & gentle wear

BIAB Vs Shellac: Which Is Better?

Is BIAB different from shellac? Yes, it is. BIAB and shellac are both salon favourites, but they cater to different needs.

BIAB is a thicker builder gel that strengthens and supports natural nails. It’s ideal if you’re trying to grow them out or need extra structure for brittle or weak nails. You can wear it on its own or layer it under gel polish for a longer-lasting finish.

Shellac is a blend of gel and traditional polish, offering a glossy, lightweight manicure that cures under UV light and lasts around two weeks. 

So, is BIAB actually better than shellac? Well, it depends on your style preferences and your nail goals.

Shellac is a great pick if you want something neat, low-maintenance, and easy to remove.

If your nails tend to break or you want long-term strength, BIAB is the way to go. If you’re after something sleek, simple, and quick to refresh, shellac might be just right.

Featuring The Nail Bar’s BIAB Nails

How To Choose The Right Nail System For You

Think about what matters most to you: easy upkeep, strong nails, a glossy finish, or something long-wearing. Or simply chat with your nail tech, they’ll help you find the perfect match.

• BIAB: Ideal if you're growing out your natural nails or need added strength without the bulk of acrylics. Great for brittle nails and gives a long-lasting, natural finish.
  

• Shellac: Perfect if you love a clean, glossy look that’s easy to maintain and remove. It’s lightweight and gentle, ideal for regular refreshes.
  

• Gel Nails: Best for a sleek, polished style with staying power. Suitable for both natural nails and extensions.
  

• SNS: A durable dipping system packed with nail-strengthening nutrients. No UV light needed, great for weaker nails.
  

• BIO Sculpture Gel: The go-to for nail health. Breathable, vegan-friendly and kind to your natural nails while still looking flawless.

Frequently Asked Questions

Is SNS Or Shellac Better?

What’s the difference between SNS and Shellac? SNS provides greater longevity and strength, while Shellac offers a quicker removal process and a sleek, glossy finish. So, choosing SNS or Shellac depends on your lifestyle and nail care preferences.

Is Gel And Shellac The Same?

Not quite. Shellac is a hybrid of gel and polish, offering a lighter feel and easier removal. Gel polish is thicker, more durable, and usually lasts longer. While both are cured under UV light, they’re not exactly the same.

What Is The Difference Between BIAB And Shellac Vs Gel?

BIAB is a builder gel that adds strength and structure, great for weak or growing nails. Shellac is lighter and easier to remove, ideal for low-maintenance wear. Gel polish offers a balance: more durable than shellac but not as strong as BIAB.

Is BIAB Gel Better Than SNS?

BIAB gel offers more flexibility and is great for building natural nail strength. SNS is harder and lasts longer, making it ideal for extra durability. The better option depends on whether you prefer structure or long-lasting strength.

What Are The Pros And Cons Of SNS Nails?

SNS nails are durable and long-lasting, but they can be harder to remove and may feel thicker compared to other nail systems.

Is Gel X Better Than Builder Gel (BIAB)?

It depends on your needs. Gel X offers a quick, lightweight extension with a more flexible feel, while builder gel provides stronger, more durable support, making it ideal for those seeking longer-lasting results or stronger nails.

Does SNS or Shellac Last Longer?

SNS nails typically last longer than Shellac, ranging from two to four weeks, while Shellac lasts around 10 to 14 days. SNS is stronger and thicker because it’s made using a dipping powder system. Shellac, on the other hand, is a thinner gel polish that needs to be cured under a lamp. How long each lasts also depends on your nail condition, how well it’s applied, and how you care for your nails at home.

Is Shellac or Dip Powder Better for Nails?

Neither Shellac nor dip powder is really better — it just depends on what you want. Shellac is thinner and more flexible, giving a natural look that lasts around two weeks. Dip powder is thicker and stronger, lasting up to five weeks, and some types even include vitamins to help your nails grow.

Experience the Best BIAB Nail Services in Brisbane

Choosing the right nail system depends on your needs. BIAB offers strength and growth, Shellac is low-maintenance and glossy, Gel provides long wear, SNS boosts durability, and BIO focuses on nail health.

At The Nail Bar, we specialise in the BIAB technique, offering strong, natural-looking nails that promote healthy growth and long-lasting wear. We have a wide range of BIAB designs, from simple and elegant styles to intricate and unique patterns, ensuring your nails always look beautiful and stand out.