Nail Extensions 101: Different Techniques Explained
Keywords:
- Acrylic nail extension
- Fingernail extensions
- Nails different types
- Types nail extensions
- Types of nail enhancements
Dreaming of having long, elegant nails with elaborate nail art but not sure where to start? With so many types of nail extensions, products and trending designs out there, it's easy to feel overwhelmed. In this nail extensions 101 guide, we explore the different types of nail techniques and help you discover which option is best for you.
What's the difference between nail extensions?
Acrylic nail extensions
Acrylic nail extensions are formed by mixing a ratio of liquid (monomer) and acrylic powder (polymer) to create a bead which is then sculpted into a nail shape, using a form that helps to dictate the shape and length of the extension. They are sturdy, durable and long-lasting and can be infilled where they have grown out at the base of the nail for an ongoing lengthened manicure all year round. Acrylics' thick, strong final shape is preferred by some but not by all, and it takes practice and expertise to mix the right ratio that is neither too dry to work with nor too wet to form a smooth final result.
Acrylics are a classic and popular option at many salons. NSI Australia is the pioneer of the acrylic nail extension technique, so we know how to make this style work for virtually any client or at-home manicurist.
Soft gel extensions
Soft gel tips are created using pre-formed tips, which are affixed and built up with a soft gel that is applied to the underside of the nail form. Then, they're applied to the natural nail and cured under a UV nail lamp. Soft gel nails will add length and a new shape while lending strength to your natural nail.
If you like a short tip and don't want to spend lots of time getting your nails done, soft gel extensions are a great option. They can cut almost the entire service time in half. For nail techs, using soft gels gives you more time to work on intricate freehand nail art or intricate patterns. However, please note that some people find soft gels less strong and durable than acrylic nails.
Builder gel nails
Builder in a Bottle (BIAB) gel nails are the goldilocks of gels. They're easy to work with and build up much like soft nail gels, but they cure to a sturdier texture similar to hard gel nails. For at-home nail lovers trying out extensions for the first time, builder gel is a great, forgiving medium. BIAB fingernail extensions also tend to 'self-level' out, helping you build the desired nail apex and shape without having lumps or bumps in your final cured result.
Builder gel nails can be removed with acetone. If you don't have tools like nail drills, you can still take them off safely at home before creating your new manicure. Dual forms will help you shape and build out the perfect forms with builder gels.
Hard gel extensions
Hard gel extensions may be difficult to work with for beginners, but they cure to a hard, durable texture more similar to acrylics. These can be used for natural nail overlays, tip and overlays, sculpting on a form and extremely long-lasting pedicures.
Hard gels often come in opaque true colours that give you the perfect opacity with ease. Some hard gels can have a strong odour, so make sure you choose a product like the Elite Sculptor LED/UV Gel System from NSI Australia that is HEMA-free and user-friendly, even for keen at-home amateurs.
How to choose the right type of nail extension for you
Here's what to consider before you commit to your next set:
- Skill level — If you're new to extensions, builder gels and soft gels are easier to master. Acrylics and hard gels take more practice and control.
- Durability — Acrylics and hard gels offer the strongest, longest-lasting finish. Builder gels are durable but slightly more flexible, while soft gels are best for shorter wear.
- Time — Short on time? Soft gel tips are the quickest to apply. Acrylics and hard gels can take longer to perfect.
- Removal — Soft gels and builder gels can usually be soaked off with acetone. Acrylics and hard gels often require more filing or a nail drill.
Do you need a quick application to save time with clients? Long-lasting durability for busy schedules? A flexible, lightweight feel for everyday wear? Or something that's simple to soak off and refresh? Knowing your priorities will help you pick the best nail extension technique.
How long do nail extensions last?
It depends on the type of fingernail extension and how well you care for them. Acrylics and hard gels can last up to three to four weeks before needing an infill, while builder gels usually last two to three weeks. Soft gel tips tend to wear beautifully for two to three weeks but may need replacing sooner if you're rough on your hands.
Get the best nail salon supplies from NSI Australia
Now that you know the ins and outs of fingernail extensions, it's time to bring those dream sets to life. At NSI Australia, you'll find everything you need to create flawless nails, from professional-grade acrylic and gel kits to PolyGel nail extensions and dip powder nail extensions.
Looking for trending shades? Our gel polishes come in every colour you can imagine, so you can create any look you've saved on Pinterest and Instagram. Explore our range and shop all the nail essentials, polishes and nail art tools to help you create manicures that wow every time.
FAQs
What are the most common types of nail extensions available?
The most common types of nail extensions include acrylic extensions, soft gel extensions, builder gel (BIAB) and hard gel systems.
Each type differs in how it's applied, how it feels on the nail and how long it lasts. Acrylics are known for their strength and structure, while gel-based systems offer more flexibility and a lighter feel. Builder gels (BIAB) are designed to be brushed on like a polish but have a thicker viscosity that allows you to build structure, shape and an apex with ease.
How does an acrylic nail extension differ from other extension methods?
Acrylic nail extensions differ from other extension methods in the way they're formed, cured and how they perform on the nail. They're created using a liquid monomer and powder polymer that react together and harden in air, forming a rigid, highly structured layer.
Can fingernail extensions be safely applied on natural nails?
Absolutely! Fingernail extensions can be safely applied to natural nails when the correct techniques and products are used. Before application, natural nails should be properly cleansed, lightly buffed and dehydrated to ensure excellent adhesion without over-filing. In most cases, damage is rarely caused by the extension itself but rather by incorrect removal practices, such as peeling or forcefully lifting the product.
Which type of nail enhancement lasts the longest?
Acrylic and hard gel extensions are generally considered the longest-lasting nail enhancement options. Both systems cure to a smooth, durable finish that can hold their shape for up to three to four weeks before needing an infill.
Keeping your nails hydrated with cuticle oil helps maintain flexibility at the base and reduces lifting. Being mindful of how you use your hands also goes a long way! Try to avoid using your nails to open cans, peel labels or pick at hard surfaces. When it comes to chores, wearing gloves while cleaning or washing dishes protects your extensions from excess water exposure and harsh chemicals.
Are some extension techniques better suited for beginners?
Yes, soft gel extensions, especially pre-formed tips, are often the easiest place to begin. Because the shape and length are already created, there's far less need for sculpting or heavy filing. You're mainly focusing on correct placement and curing, which helps build confidence early on.
Builder gel (BIAB) is another great option for beginners. Its thicker consistency allows you to build structure gradually, and it naturally smooths itself out as you work. This makes it much easier to achieve a clean, even finish.
What tools and prep work are required for different extension methods?
The tools you'll need depend on the type of nail extension you're using. Acrylic systems require a brush along with liquid monomer and powder polymer, plus nail forms or tips to build out length and shape. Gel-based systems, including builder and hard gels, require a UV or LED lamp to cure the product, along with brushes or applicators for controlled placement. Soft gel extensions often use pre-shaped tips, which streamline the process and reduce the need for sculpting tools.
Proper prep usually begins with gently pushing back the cuticles, removing any excess skin from the nail plate and lightly buffing the surface to eliminate shine. This creates the ideal base for product adhesion. A nail cleanser, dehydrator and primer are then used to remove oils and help the extension system grip securely.
What is the safest way to remove nail extensions to protect natural nails?
The safest way to remove nail extensions depends on your chosen material. For soak-off systems like soft gels and builder gels, the process usually involves gently filing the top layer to break the seal, then soaking the nails in acetone until the product softens enough to be carefully pushed away. Acrylics and hard gels, on the other hand, don't fully soak off and need to be carefully filed down, either by hand or with an electric file.