The Difference Between BIAB And Acrylic Nails
- Andy Nguyen
- 7 days ago
- 5 min read
Updated: 6 days ago

Let’s talk about the difference between BIAB and acrylic nails, two go-to options if you’re after strong, long-lasting nails.
Not sure which one’s better for your nail health, lasts longer, or fits your style? You’re not alone. In this guide, we’ll walk you through how BIAB and acrylics compare when it comes to what they’re made of, how they’re applied, how they feel, and how much upkeep they need, so you’ll know exactly what to ask for next time you’re at the salon.
What Are Acrylic Nails?
Acrylic nails are a popular type of nail enhancement made by mixing a special liquid and powder that hardens quickly when applied. Often used with plastic tips to extend the nail, this creates a strong, protective layer that can be shaped and filed to your preferred length and style. They’re ideal for adding length, reinforcing weak nails, or creating bold, statement designs.

What Is The Difference Between BIAB And Acrylic?
Now, let’s explore the key differences between BIAB and acrylic.
Key Difference | BIAB | Acrylic |
Composition & Ingredients | Gel-based, flexible, brushed on like gel polish | Mixed from liquid and powder; hard and rigid |
Application Method | Painted and cured under a UV/LED lamp | Hand-shaped paste that air dries; needs skill |
Texture & Flexibility | Flexible and comfortable; less likely to crack | Strong but brittle; can snap under pressure |
Effect On Nail Health | Supports nail health; gentler and less damaging | Harsher on nails; may cause thinning |
Maintenance & Durability | Lasts 2–3 weeks; low maintenance | Lasts up to 4 weeks; needs regular upkeep |
Composition & Ingredients
BIAB, short for Builder in a Bottle, is made with a gel-based formula that's thicker and more flexible than acrylics. It's designed to add strength and structure to natural nails while giving them a smooth, long-lasting finish. Unlike acrylic nails, BIAB is brushed on like gel polish but functions as a builder. The result feels lighter, looks more natural, and moves with your nail.
We’ve created a complete guide covering everything you need to know about BIAB nails - so if you’re curious, have a read.
Acrylics, on the other hand, set into a hard, rigid coating that offers durability but can feel heavier and less forgiving in everyday wear.
Application Method
Applying BIAB is fairly straightforward. It’s painted onto the natural nail much like gel polish and cured under a UV or LED lamp. This makes it ideal for overlays and subtle extensions, as it’s quick, easy, and leaves a natural look.
Acrylic nails take a bit more time and skill to apply. The process starts by mixing two parts: a liquid (called monomer) and a powder (called polymer). When combined, they form a paste that the nail technician places on your nail. This paste is then shaped by hand into the desired nail form and begins to harden quickly.
Because they set fast, the shaping needs to be done with care and precision, which is why acrylics are usually done by experienced nail techs.

Texture & Flexibility
One of BIAB’s standout features is its flexibility. It moves with your nail, which makes it more comfortable and reduces the risk of cracks or breaks.
Acrylics are much tougher but also more brittle. Their rigid structure makes them great for strength, but they’re more prone to snapping if they take a knock.
Effect On Nail Health
When it comes to nail health, BIAB tends to be the gentler option. It supports the natural nail and can help with growth, especially when applied and removed correctly. Since it doesn’t require heavy filing, it’s less likely to cause long-term damage.
Acrylics, while long-lasting, can be harsher. If they’re removed carelessly or worn for long periods without a break, they may weaken or thin the natural nail underneath.

Maintenance & Durability
BIAB usually lasts around two to three weeks and doesn’t need much upkeep. It’s less likely to lift compared to acrylic, so you’re less likely to run into problems between appointments.
Acrylic nails are more hard-wearing and can last up to four weeks, but they do require regular infills to keep them looking fresh and secure. While they’re stronger, they also demand more maintenance over time.
How To Choose Between BIAB And Acrylic
If you’re after a more natural finish and want to keep your nails strong, BIAB is a fantastic choice. It feels light, moves with your nails, and is gentle enough to help them grow without breaking, a great option if you’re after a tidy, long-lasting manicure without too much fuss.

But if bold shapes, a durable finish, or extra strength are more your style, acrylics could be the way to go. They’re hard-wearing and versatile, perfect for statement looks or if your nails go through a lot day to day. Just remember, they do need a bit more upkeep and care when it’s time to remove them.

The key difference between BIAB and acrylic lies in their finish, flexibility, and overall effect on natural nail health, making your choice all about what suits your style and lifestyle best.
Frequently Asked Questions
Does BIAB Last As Long As Acrylic?
Absolutely! When applied and looked after properly, BIAB and acrylic nails can both last around three to four weeks. While acrylics are known for their strength and durability, BIAB offers a softer, more flexible alternative that’s often kinder to natural nails, especially for overlays or shorter extensions.
Which Is Better, Builder Gel Or Acrylic?
Both builder gel and acrylic nails have their strengths, so the best choice really comes down to what suits your lifestyle and personal preference.
What Makes BIAB Different?
BIAB stands apart from traditional gel polish and acrylics with its thicker, more durable formula that’s flexible enough to support and strengthen natural nails, helping them grow healthier over time.
Is BIAB Or Acrylic More Expensive?
BIAB vs acrylic prices can vary depending on the salon and service. BIAB is often slightly more expensive than a standard acrylic set, as it’s applied in layers like gel but offers added strength and supports natural nail health. Acrylics, while initially more affordable, may require more frequent maintenance, which can add to the overall cost over time.
Conclusion
When you compare BIAB and acrylic, you're really looking at the difference between innovation and tradition. Acrylics have been a salon staple for decades - reliable, strong, and perfect for creating bold, dramatic nails. BIAB, on the other hand, reflects a newer approach: lighter, more flexible, and designed with natural nail health in mind.
After learning about the BIAB and acrylic difference, if you’re looking for a salon that offers both techniques, look no further than The Nail Bar Indooroopilly. Our experienced nail artists are here to help you choose the best option for your nails. Ready to elevate your nail game? Book your appointment today.