How are U-Tip hair extensions applied?

The u-tip fusion hair extensions are applied using a heated tool that melts the keratin bond, which is then attached to a small section of the natural hair. The process involves taking small sections of hair and attaching a u-tip extension to each section, the tip has to be heated and wrapped around each small section of hair. This can be time-consuming and requires a skilled technician.

How long do U-Tipped extensions last?

U-tip fusion hair extensions can last anywhere from 3 to 6 months with proper care and maintenance. However, it is important to note that regular maintenance is required to keep the extensions looking their best. Clients will need to go in for regular touch-up appointments to have any loose bonds tightened or replaced and to ensure that the extensions are properly aligned with the natural hair. Neglecting maintenance can cause the extensions to become tangled, matted, or even fall out prematurely.

Can U-Tip fusion hair extensions be reused?

U-tip fusion hair extensions can be reused if the extensions are still in good condition and the keratin bonds are intact. The extensions are removed using a special solvent that breaks down the keratin bond, and new bonds can be applied to the extensions for reuse.

Are U-Tipped extensions suitable for all hair types?

U-tip fusion hair extensions are suitable for most hair types, but they may not be suitable for extremely fine or thin hair. The weight of the extensions can put too much stress on the natural hair and cause damage. It is important to consult with a hair extension technician to determine if u-tip fusion extensions are suitable for your hair type.

A bundle of dark brown, wavy hair extensions with a small purple tag labeled "Perfect Locks" offers volume and shine on white.

Long, Natural Black, wavy hair extension bundle with a purple Perfect Locks tag on the left and shiny Remy texture on the right.

Close-up of Natural Black, wavy, and shiny hair, densely packed and textured with defined curls throughout the frame.

A hand holds dark hair extensions with keratin tips; Italian glue and U-tip provide lasting bonds. Each pack has 25 strands, heat-infused.

Split image compares Cold Fusion (I-tips with beads) and Hot Fusion (U-tips with keratin glue), showing methods, reusability, maintenance intervals, and benefits of each hair extension technique.

curly fusion u-tip hair by perfect locks - video preview

Curly Fusion U-Tip Hair

Name: Curly Fusion U-Tip Hair
Brand: Perfect Locks
SKU: C-UTP-1B-16
Price: 87.0 USD
Availability: InStock
Rating: 4.97 (30 reviews)

$87

4 easy payments of $21.75 or

Color:

Natural Black (1B)

Length:

16"

Sale

Variant

Free shipping $225+
30-day returns
20+ years trusted

Questions? Chat with a team member

Pickup available at Perfect Locks HQ Usually ready in 2 hours

Free shipping $225+
30-day returns
20+ years trusted

Questions? Chat with a team member

At a glance

Texture: Curly
In each pack: 25 pieces
Lasts: Up to 6 mo

Product Highlights:

Keratin tips fuse to your hair for a secure hold
Strand-by-strand install blends naturally
Best for medium to thick hair

Long-Lasting Keratin Bond Fusion U-Tips hair extensions

Fusion U-Tips

Keratin bonded perfection

Heat-fused individual strands for the ultimate in natural, flowing length. Creates gorgeously seamless integration that moves beautifully with you.

Custom color blending
All hair types
All textures

100% Remy human hair with aligned cuticles for minimal tangling
Pre-bonded U-shaped keratin tip for secure fusion
Lasts 3-6 months with proper care
Natural strand placement for 360-degree styling
Heat-stylable up to 350°F with heat protectant

3-6 months per installWear time
350°FHeat safe
25Per pack
ProfessionalSkill level

Product DescriptionFeatures, specs & what makes this hair special

SpecificationsHair details, pack contents & longevity

Care & MaintenanceWashing, styling & storage

U-tip extensions use individual keratin bonds shaped like a small nail to attach seamlessly to your natural hair. With the right care routine, these bonds stay secure and the hair stays beautiful for months.

How U-Tip Bonds Work

Each strand is attached to a small section of your natural hair using heat to fuse the keratin tip. The bonds are strong and secure, but they can be weakened by oil, certain chemicals, and excessive heat. Your care routine should focus on keeping the bonds intact while maintaining the quality of the extension hair.

The First Few Days

Give your bonds 48-72 hours to fully set before washing. Avoid heavy sweating, steam, swimming, or getting your hair thoroughly wet during this time. If you need to freshen up, you can use dry shampoo on your scalp only.

Washing

Wash every 2-3 days to balance keeping your scalp clean without stripping moisture from the extensions. When washing, keep your head upright and let water flow down from your scalp. Never flip your head upside down - this tangles the extension hair around the bonds, creating mats that are painful to remove and can damage your natural hair.

Apply sulfate-free shampoo to your scalp and gently massage with your fingertips. Let the suds run through the lengths as you rinse - don't scrub or bunch the hair at the mid-lengths where your bonds are located. Follow with a lightweight conditioner on the ends only, staying at least 2 inches below the lowest bonds. Heavy conditioners near the bonds can cause them to slip.

Rinse extremely thoroughly. Take longer than you think you need - any residue near the bonds weakens them over time.

Drying

Squeeze water out gently with a soft towel. Never rub or twist the hair. Air drying is ideal, but if you need to blow dry, use low to medium heat and keep the dryer moving. Don't concentrate heat on any one area, especially near the bonds - prolonged high heat can soften keratin.

Most importantly, never sleep with wet hair. Moisture trapped at the bonds overnight can make them gummy or cause slippage.

Brushing

This is the most important thing you can do for your U-tip extensions. Brush at least 2-3 times daily with a loop brush or extension-safe brush. The loops are designed to glide over the bonds without snagging, while still detangling the hair.

Focus extra attention on problem areas: the nape of your neck, behind your ears, and the underneath layers where hair naturally tangles. Hold the hair near the bonds with one hand while brushing with the other so you're not pulling on the attachment points.

Always brush dry or nearly-dry hair. Start at the ends and work up in small sections, never pulling through tangles. Before bed, do a thorough brushing session and then secure hair in a loose braid or low ponytail.

What Damages Bonds

Keep away from the bonds: oils (including argan, coconut, and other hair oils), products with sulfates, products with alcohol, heavy conditioners and masks, and prolonged exposure to chlorine and salt water.

Safe to use: sulfate-free shampoo, lightweight leave-in conditioner on ends, heat protectant spray, water-based styling products, and dry shampoo on scalp only (alcohol-free formulas).

Heat Styling

Your U-tip extensions can absolutely be heat styled - they're 100% human hair. Use heat protectant before any hot tools, and keep temperatures at 300-350 degrees. The one caution is to avoid clamping hot tools directly on the keratin bonds. The bonds can handle incidental heat, but a flat iron clamped directly on a bond will soften and potentially melt it. Stay at least an inch above the bond when straightening or curling.

Swimming and Sweating

Chlorine and salt water aren't great for keratin bonds. If you swim, wet your hair with clean water first and apply a leave-in conditioner to create a barrier. Keep your hair braided and above water as much as possible. Rinse immediately after and wash with a clarifying shampoo.

For workouts, pull hair back in a low braid or ponytail. After exercising, let your hair and scalp dry completely before putting it back up - sweat trapped at the bonds can cause them to break down.

Sleep Routine

Always brush thoroughly before bed, then secure in a loose braid or soft ponytail. Avoid anything tight that pulls on the bonds. Sleep on a silk or satin pillowcase - the smooth surface creates less friction than cotton, preventing tangles and reducing stress on the bonds.

Checking Your Bonds

Every few days, run your fingers along your bonds to check their condition. Healthy bonds feel firm and smooth. If any feel soft, sticky, or loose, contact your stylist - catching a slipping bond early can prevent hair loss.

Maintenance and Removal

U-tip extensions typically last 3-6 months before needing removal and reinstallation. As your hair grows, the bonds move down, becoming more visible and putting stress on your natural hair. Stick to your stylist's recommended timeline.

Never attempt to remove bonds yourself. Cutting, pulling, or using household products can seriously damage your natural hair. Your stylist will use a professional keratin bond remover that dissolves the bonds safely, leaving your natural hair undamaged and ready for a new set if desired.

Quantity GuideBased on your hair density and hair goals

U-Tips Advised Quantity

Recommended number of packs based on your natural hair density and desired results for U-Tips.
Desired Results	Fine Density	Medium Density	Thick
Volume	3 to 4 packs	4 to 6 packs	6+ packs
Color	3 to 4 packs	4 to 6 packs	6+ packs
Length	3 to 4 packs	4 to 6 packs	6+ packs

Every head of hair is unique, and the right amount depends on:

Wear Time - Temporary or long-term?
Installation - Subtle blend or full volume?
Lifestyle - Low-maintenance or high-glam?
Hairstyle - Natural look or bold transformation?
Budget - Invest in quality for lasting beauty.

Pro Tip: When in doubt, order extra! Unused hair can be saved for touch-ups or returned if unused.

How to InstallQuick step-by-step application guide

1. Sectioning & Preparation 3 min

Start by sectioning the client’s hair into clean, horizontal rows, beginning at the nape of the neck. Ensure the hair is completely dry and free of oils or product buildup for maximum hold.

2. Bead Placement 2 min

Use a loop tool to thread a silicone-lined bead onto a small section of natural hair. Slide the bead up close to the scalp, leaving a small gap (about ¼ inch) for natural movement.

3. Insert the I-Tip Extension 1 min

Insert the I-Tip extension into the bead, ensuring the tip is fully enclosed within the bead. Avoid overlapping too much natural hair, as this can cause slipping.

4. Securing the Beads 1 min

Use a professional crimping tool to clamp the bead securely, locking the extension in place. Repeat the process row by row, maintaining even spacing for a seamless, natural blend.

5. Repeat and Blend 10 min

Once every extension is installed, brush gently to blend them into the natural hair. Tell the client to keep oil-based products away from the beads and to book a maintenance appointment every 6 to 8 weeks as the bonds grow out.

Professional Installation Recommended

This method is best installed by a licensed stylist to ensure proper placement and protect the health of your natural hair. Looking for a stylist experienced with extensions? Find a Pro Stylist near you.

View Fusion installation guide

Product FAQ'sAnswers about wear time, styling & reuse

Shipping & ReturnsFree shipping $225+ - Easy 30-day returns

Customer Reviews

Verified photos and videos from customers wearing this hair.

4.97 out of 5 - Based on 30 reviews reviews

Customers praised these curly fusion u-tip extensions as "the best, most natural curl" with exceptional quality and longevity. Reviews highlighted the soft texture, minimal tangling, and ability to blend seamlessly with natural hair. The curls maintain their pattern through washing and styling. One customer received curly instead of wavy.

This is the best, most natural curl you will

This is the best, most natural curl you will ever find! Virgin cuticle, amazing health. Natural 1b color to maintain integrity, but So easy to color. Fusion is a skill well worth it! So light, inconspicuous, and low Maitnence!!! This hair is hard to find please carry it forever

Candice C. - Verified Buyer - Jul 21, 2026
Love this Hair!

I absolutely love this hair! I have had it in for almost 6 months now and it still holds its curl. I had them moved up at 3 months and they still looked brand new. The curls are beautiful and match my natural pattern so well. I am definitely purchasing more from this brand in the future.

Justine S. - Verified Buyer - Oct 06, 2020
Curly fusion u tip hair

These extensions have been my absolute favorite out of all the ones I’ve tried and match my hair texture and color perfectly!

Caitlin C. - Verified Buyer - May 14, 2020
Best Utip fusions on the market hands down

Seriously the best hair in the market. I've been wearing fusion Exterminator since 2008 and have tried different vendors which were all alot more expensive. Most importantly, the curly texture matches perfectly with my hair and the hair stays in much longer!!! I had my last 134 pieces in for just over 8 months and did not lose one!! That had never happened, ever, in ten years. I've saved so much money by purchasing myself and having my stylist install them. Plus I know the hair is great quality, curls up, can be colored and will last.. I became a VIP member and saving even More! The customer service is very helpful and welcoming. I'm so glad I did my research and found Perfect Locks. Oh and what's really most important is that my hair stays in healthy shape. The tips are keratin glue which slide right off. I do not lose hair. As long as you detangle them during use you'll be good. I can twist, braid and party my hair and you won't even see the extensions in there.. if you're on the fence about trying utip fusions, I'd say this is the best quality to go with. It is very easy on the hair. Oh, and you will love it!!

Rachel C. - Verified Buyer - Jan 29, 2020
Absolutely love this oroduct

Great quality, consistently meets all my expectations.

Sady V. - Verified Buyer - Dec 06, 2019
Fusion U tips

Second purchase of extensions from this company . Excellent , excellent, excellent. Hair came within one day . Beautiful texture and vrest staying power . As someone who needs curly extensions , perfect locks is a lifesaver

Catherine H. - Verified Buyer - Sep 01, 2018
By far the BEST curly u-tips on the market for beautiful big curly hair!

These are beautiful curly u-tip fusion extensions that my stylist put in for me. There STUNNING! They are the second set I have put in and as long as you take care of them properly you would be shocked at how long they can last! My own hair is curly so it matches very close if I just use a little product and I’m off and running! Also, sometimes I will braid them and air dry and it gives a whole different look. The color is beautiful and the curl stays curly unlike I have heard of other large brands. Sometimes I braid them and air dry and it gives a whole other look.I can straighten them if I like but this summer I’m embracing my curls! I love this company and product. This summer is easy with my BIG beautiful curls!

Alicia L. - Verified Buyer - Jun 03, 2026
LOVE

I just had them put in and I absolutely love them. I was nervous at first but they look exactly like my natural hair which is really curly. I am growing out a short hair cut and this helps tremendously! So glad I ordered from perfect locks! THEY ARE AWESOME.

Jensyn - Verified Buyer - Dec 13, 2022
hi I ordered wavy but

hi I ordered wavy but I received curly and had to apply a keratin treatment to soften the curly hair as I really had to use them.The quality of tge hair is very good but it was a bit dissappointing to have received curly hair during a peak festive season.

Natalia G. - Verified Buyer - Dec 12, 2022
love my hair

even my hair dresser said that she loves my hair. Shocked by the sticker price but she knows that I only by the best, no matter the cost. Feels soft and flows like it was my real hair.

Dana C. - Verified Buyer - Nov 25, 2022
THE BEST AROUND!

Most of the hair on my head is made up of these extensions. This is the best quality I've found. Highly recommended and a very reasonable price.

Angela - Verified Buyer - Feb 17, 2022
The best

The best u tips fusion hair, so soft it's actual human hair in so excited that it has that curly texture and it can also be dyed what more do you want

katherine l. - Verified Buyer - Dec 29, 2020
Fusion U-Tip Hair Curly

My overall experience was fantastic! The hair I purchased is the curly 14" length and it is very good quality. Easy to install and doesn't tangle. After many washes the hair will regain the curls and stay loose, no tangle, and easy to manage. I will definitely buy the Fusion U-tip hair again.

Jeanette T. - Verified Buyer - Dec 21, 2020
Great Quality Product!

I have been a loyal and consistent customer of Perfect Locks since 2014. I cannot say enough good things about the quality of the hair - I won't purchase from anyone else.

Nicole H. - Verified Buyer - Oct 08, 2020
Amazing

I’ve had these in for 2 months now and it’s amazing quality and I constantly am getting compliments on how beautiful my hair is and they think it’s my real hair!

stephanie w. - Verified Buyer - Jun 24, 2020

Showing 15 of 30 reviews

Curly Fusion U-Tip Hair

At a glance

Not sure which texture or shade is right for you?

Keratin bonded perfection

Product Information

How U-Tip Bonds Work

The First Few Days

Washing

Drying

Brushing

What Damages Bonds

Heat Styling

Swimming and Sweating

Sleep Routine

Checking Your Bonds

Maintenance and Removal

U-Tips Advised Quantity

1. Sectioning & Preparation 3 min

2. Bead Placement 2 min

3. Insert the I-Tip Extension 1 min

4. Securing the Beads 1 min

5. Repeat and Blend 10 min

STILL HAVE A QUESTION?

Return Policy

Shipping Information

This is the best, most natural curl you will

Love this Hair!

Curly fusion u tip hair

Best Utip fusions on the market hands down

Absolutely love this oroduct

Fusion U tips

By far the BEST curly u-tips on the market for beautiful big curly hair!

LOVE

hi I ordered wavy but

love my hair

THE BEST AROUND!

The best

Fusion U-Tip Hair Curly

Great Quality Product!

Amazing

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