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Mermaid Extensions®

Hair jewelry that clips into your hair for an instant transformation!

Handcrafted. 3 sizes. Tangle-free. All hair types.

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What are Mermaid Extensions?

Hi! I'm Brielle, the inventor of
Mermaid Extensions®! They're unique, handcrafted hair accessories that simply clip into your hair and come in a variety of lengths and styles to suit all hair types.

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They're the simplest way to style your hair for the beach, school, or a night out!

Check out all the styles!

Clip-On Mermaid Extensions®

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Team Spirit clip-on Mermaid Extension hair jewelryTeam Spirit clip-on Mermaid Extension hair jewelry

(CLIP-ON) Team Spirit - Mermaid Extension

From$18.99
AquamarineCoconut

(CLIP-ON) Sea Star - Mermaid Extension

From$18.99
SeafoamStarstone - Pink

(CLIP-ON) Brunette Boho Babe - Mermaid Extension

From$18.99$13.99
Siren StarSiren Star

(CLIP-ON) Blonde Boho Babe - Mermaid Extension

From$18.99$13.99
Golden HourAquamarine

(CLIP-ON) Coastal Color - Mermaid Extension

From$18.99$13.99
Daydream DaisyBlue Blossom

(CLIP-ON) Flower Child - HairJoy Extension

From$18.99
Cowboy BootCowboy Boot

(CLIP-ON) Charming - HairJoy Extension

From$18.99$13.99
AquamarinePink Sunset

(CLIP-ON) The Original - Mermaid Extension

From$18.99$13.99

3 Lengths to Choose From

The length of the extension can vary depending on if you clip it high or low in your hair. 

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When clipped near the top of her head on this 5'3 model, the short extension is shoulder length, the medium is chest length, and the long is rib length.

Shop Extensions
150+ 5-star reviews
Loved by 20,000+ customers
Daydream Daisy
150+ 5-star reviews
Loved by 20,000+ customers
Daydream Daisy
150+ 5-star reviews
Loved by 20,000+ customers
Daydream Daisy
150+ 5-star reviews
Loved by 20,000+ customers
Daydream Daisy
150+ 5-star reviews
Loved by 20,000+ customers
Daydream Daisy
150+ 5-star reviews
Loved by 20,000+ customers
Daydream Daisy
150+ 5-star reviews
Loved by 20,000+ customers
Daydream Daisy
150+ 5-star reviews
Loved by 20,000+ customers
Daydream Daisy
150+ 5-star reviews
Loved by 20,000+ customers
Daydream Daisy
150+ 5-star reviews
Loved by 20,000+ customers
Daydream Daisy

We're More Than Just Hair Jewelry!

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Boho Babe Waist Chain

$34.99

Shell Phone Lanyard

$18.99

Bikini Charm - Gold Filled & Waterproof

$25.99$19.99

Halo Headband 2.0

$26.99

Purse Charm / Key Chain

$9.99

Shellshine Choker

$35.99$29.99
Tag us in your pics to be featured!
Follow us at @Brielles_Shells
Tag us in your pics to be featured!
Follow us at @Brielles_Shells
Tag us in your pics to be featured!
Follow us at @Brielles_Shells
Tag us in your pics to be featured!
Follow us at @Brielles_Shells
Tag us in your pics to be featured!
Follow us at @Brielles_Shells
Tag us in your pics to be featured!
Follow us at @Brielles_Shells
Tag us in your pics to be featured!
Follow us at @Brielles_Shells
Tag us in your pics to be featured!
Follow us at @Brielles_Shells
Tag us in your pics to be featured!
Follow us at @Brielles_Shells
Tag us in your pics to be featured!
Follow us at @Brielles_Shells

Ethically Handcrafted

Each accessory is crafted with positive vibes that shine through when you wear them!

Made for Everyone

Our products come in multiple sizes and styles to suit all hair types.

Long-Lasting Joy

Each accessory is quality-checked to ensure that you can wear it for a long time.

About the Founder

Brielle's Shells launched in 2024 by Brielle Cenci, an engineer-turned-entrepreneur who loves traveling, surfing, and getting creative. Brielle's mission is to spread joy and encourage girls of all ages to be their most authentic selves. 

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A
Brielle’s Shells
Anonymous

So cute and fun!

I
Brielle’s Shells
Isabella L.

Such a good store!

L
Brielle’s Shells
Lauren B.
Great experience

Owner responded to my message right away, shipping was quick and love the products!

D
Brielle’s Shells
Donna S.
Summer time looks

Try them so different from anything out there

J
Brielle’s Shells
Josie M.
Excellent Experience!

Incredible quality and customer service! Shipping was fast and professional!

Frequently asked questions

What size Mermaid Extension should I get?
There are no rules for this, and it can depend on your style preference! If you clip it near the top of your head, the SHORT will hit above your shoulders, the MEDIUM will hit at your chest, and the LONG will hit at your rib cage. If you clip it lower on your head, then the extension will appear longer. You can grab a measuring tape at home to get an idea of sizing (Short = 10 inch, Medium = 15inch, Long = 20 inch). If you are purchasing them as a gift and are unsure what size to get, we recommend ordering a Medium.
How do Mermaid Extensions attach to your hair?
Our clip-on Mermaid Extensions are non-permanent and re-usable since they attach to your hair with a strong hair clip. All you have to do is press on the left and right side of the clip to open it, then place the side with the "teeth" against your scalp, and then press down on the clip to close it.

You should be able to tug on the extension without it sliding down. If you can't, try clipping it in again, making sure you've dug the "teeth" into enough hair near your scalp.
Do Mermaid Extensions work on thin, thick, curly, or straight hair?
They work amazing on all hair types! We have a few styling tips depending on your hair type:

-For curly hair, you may want to clip the extension closer to the front of your face and underneath less hair so that the curls don't hide it.

-For thin, straight hair you may need to clip it underneath more hair if you want to hide the clip. Also, it may help to grab the section of hair you want to clip it onto and pull that section away from your scalp while digging the clip in to help the clip grab onto the hair.
What age of girls wear Mermaid Extensions?
Our products are loved by customers of all ages! We often see customers as young as 3 years old and as old as 80+ years old wearing them. We know lots of mother-daughter and grandmother-granddaughter pairs enjoy wearing matching ones together for special occasions or vacations. Our mission is to spread joy to all ages and encourage girls that you don't have to be afraid to stand out with your style!
Where can I buy Mermaid Extensions?
They are available here on our website at BriellesShells.com as well as all of our retailers who sell our products around the world. If you'd like to know which of your local stores sells Brielle's Shells, feel free to email us at Hello@BriellesShells.com
Where do people wear Mermaid Extensions?
Our hair jewelry is perfect for school, vacation, beach / pool, bachelorette parties, coastal weddings, birthday parties, events, holidays, and every-day activities! We also have our "Team Spirit" extensions that are perfect for gamedays or school fundraisers so you can rep your team colors in your hair!
Can I get a discount for bulk orders?
Yes! We offered tiered discounts for bulk party/event orders of at least a dozen items. We also offer wholesale pricing for repeat buyers such as retail stores, event planners, or salons. Lastly, we offer fundraiser pricing for schools or teams looking to sell our products to raise money for their organization. Please email us to get a quote Hello@BriellesShells.com.

2026 © Brielle's Shells