What are fusion hair extensions?

Fusion hair extensions are a semi-permanent method where individual keratin-tipped strands are bonded to natural hair using a heat tool.

How long do fusion hair extensions last?

With proper application and aftercare, fusion hair extensions typically last around 3 to 5 months.

Are fusion hair extensions damaging to natural hair?

When applied and removed by a trained professional, fusion hair extensions are designed to be gentle on natural hair.

Can I style fusion hair extensions with heat tools?

Yes, you can style fusion hair extensions with heat tools. Avoid applying direct high heat to the keratin bonds.

How are fusion hair extensions applied?

Fusion extensions are applied by sectioning the hair, attaching small keratin-tipped strands, and bonding them with a heat tool.

Can I color or dye fusion hair extensions?

Extensions may be toned or darkened slightly, but bleaching is not recommended as it can damage the hair.

How do I care for fusion hair extensions?

Use sulfate-free products, brush gently, avoid oils on bonds, and sleep with hair secured.

Are fusion hair extensions reusable?

Fusion extensions are typically single-use, as the keratin bonds are melted during application.

Can I swim or work out with fusion extensions?

Yes, but braid hair before swimming and rinse thoroughly afterward to avoid tangling and buildup.

What makes Salty Locks Fusion Hair Extensions different?

Salty Locks uses premium 100% Remy hair with high-quality keratin tips, plus education and support for stylists.

33 products · 60g & 100g · four lengths

Machine Volume Weft Hair Extension

One continuous weft, machine-stitched for strength. The densest base we make — built for medium to thick hair that needs real volume, and durable enough to reinstall for a year or more.

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Fusion K-Tip 37 products Genius Weft 24 products Machine Weft 33 products Regular Tape-in 15 products Invisible Tape 9 products Clip-In 18 products

✓Grade A Slavic hair
✓Remy cuticle
✓Double drawn
✓Reusable 12+ months

Salty Locks Machine Weft Hair Extension made with premium Remy human hair for natural length and volume

Density you can build on

Key Features of Machine Volume Weft

Weft for Maximum Volume

Built to deliver maximum fullness, these weft hair extensions combine thickness and lightness so your strands look fuller with a soft, seamless finish. They are ideal for anyone who wants weft hair extensions that look natural and feel weightless.

Hand-Processed Coloring

Every set is colored by hand for gentle, damage-free balayage and highlights. The shades stay true and do not turn pink from sunscreen.

No synthetic fillers

Made with pure human hair only. Each pack comes from no more than two donors for a clean, authentic result. These are true human hair extension weft options with no synthetic mix.

Eco-Friendly Packaging

All packaging is recyclable and biodegradable to support a cleaner planet.

Real Installs

Before & After

Length and density: you can actually see real clients, real appointments, no filters.

A Diverse Range to Suit Your Needs

Explore our Machine Volume Weft selection filled with options for every style. Choose the chic 18-inch, 60-gram bundles for a softer boost, or go bold with our 100-gram bundles in 18 and 22 inches. If length is your goal, our 22-inch and 26-inch 100-gram bundles make your hair stand out. And for the most dramatic look, our 28-inch 100-gram bundles offer breathtaking length and volume. Whether you want the best volume weft hair extensions or the best weft hair extensions for everyday wear, we have a match for you.

Premium Quality, Natural Brilliance

We aim to offer only the finest. Our Machine Volume Wefts are made from Grade A Slavic hair, carefully sourced to preserve its natural beauty. With Remy cuticles and double-drawn construction, these machine wefts stay smooth, tangle-free, and brilliantly shiny. You can step out into the sun with confidence—our Slavic hair does not turn pink from sunscreen. Each set simply looks and feels like luxurious, natural hair.

Choosing Machine Volume Weft

THE GENTLEST METHOD, AND THE MOST REUSABLE

Machine wefts are strands stitched into one continuous weft by a precision machine. Your stylist installs them onto braided or beaded rows, sewing the weft along the foundation for a secure, seamless hold, and can trim them to fit your head shape.

That density is the point — and the constraint. Machine wefts are an excellent match for medium to thick hair and deliver full, voluminous results. On fine or thin hair, Genius Wefts feel lighter while delivering a similar look.

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