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Jet Black (1) Genius Flex Weft Hair Extensions (100-120g) [Clearance]

Jet Black (1) Genius Weft Hair Extensions (50-120g)_100% Remy Human Hair.
Jet Black (1) Genius Weft Hair Extensions (50-120g)_100% Remy Human Hair.
Jet Black (1) Genius Weft Hair Extensions (50-120g)_100% Remy Human Hair.
Jet Black (1) Genius Weft Hair Extensions (50-120g)_100% Remy Human Hair.
Jet Black (1) Genius Weft Hair Extensions (50-120g)_100% Remy Human Hair.
Jet Black (1) Genius Weft Hair Extensions (50-120g)_100% Remy Human Hair.
Jet Black (1) Genius Weft Hair Extensions (50-120g)_100% Remy Human Hair.

Jet Black (1) Genius Flex Weft Hair Extensions (100-120g) [Clearance]

Special automatic 25%-50% off for clearance!

$126.29
Regular price $247.62
or 4 interest-free payments of$31.57with Klarna Afterpay
Product details
TYPE:
Genius Weft 100-120g
Select Your Length:
18"-100g-1pc
DESCRIPTION
Our hair is made from 100% Remy human hair and undergoes gentle color treatments. Ethically sourced for a soft, natural look and feel.

Each strand is carefully selected to ensure consistent quality, cuticle alignment, and long-lasting wear.

No synthetic blends. No shortcuts. Just pure, salon-grade human hair you can trust.

Specification

Genius Weft 50-60g Width : 31 inch

18” - 50g, 1 piece

20''/22''/24'' - 60g, 1 piece


Genius Weft 100-120g Width : 31 inch

18” - 100g, 1 piece

20''/22''/24''- 120g, 1 piece



Care Instructions



The Dos and Don'ts of Genius Weft Maintenance & Aftercare

Do:
  • Schedule move-up appointments every 6–8 weeks. As your natural hair grows, tension shifts. Regular move-ups keep your Genius Weft lying flat and secure, preventing unnecessary stress or loosening at the root.
  • Use professional-grade silicone-lined beads and premium thread. Genius Weft is ultra-thin and flexible—pair it with high-quality materials to maintain a seamless, comfortable install with long-lasting hold.
  • Replace beads and thread at every move-up. Fresh materials ensure maximum grip and structural integrity. Reusing worn beads can compromise security and reduce longevity.
  • Match bead color to your root tone. Choosing a bead shade that blends with your natural root keeps the weft discreet—especially around the crown and part line. Maintain balanced tension during installation. Genius Weft is designed to be thin yet durable. Even tension preserves scalp comfort while keeping the weft flat and undetectable.
Don’t:
  • Don’t use flare or metal grooved beads. For Genius Weft, silicone-lined beads provide better cushioning, grip, and overall comfort.
  • Don’t reuse old beads or thread. Previously installed materials may be stretched or weakened, increasing the risk of slippage.
  • Don’t cut through the weft during removal. Always fully release beads and carefully remove stitching before taking down the row to protect both the weft and your natural hair.
  • Don’t overload each row with excessive tension. Over-tightening can cause scalp discomfort and reduce the natural movement Genius Weft is designed to deliver.

 

TUTORIAL

 

How To Install Genius Weft?


STEP 1-Prep & Section

Start with clean, dry hair. Create neat horizontal sections where the wefts will be installed.

STEP 2- Customize Your Weft

Cut the weft to your desired width for a precise, custom fit. Measure the section carefully, then trim cleanly to match your installation area and ensure seamless blending.

STEP 3- Secure with Pliers

Using a bead device, thread a small section of natural hair and the weft strand into the same bead. Position close to the scalp and clamp firmly with pliers to secure. Repeat evenly along the row.
Alternatively, this weft can also be installed using a traditional sew-in method.

STEP 4- Blend & Style

Trim or layer as needed for a seamless blend. Style as desired.



 

SHIPPING & RETURNS

Free Shipping Worldwide. All prices on the website include FREE standard shipping to applicable countries. You can exchange or refund your order within 30 days.

 

goo goo shipping  policy


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Jet Black (1) Genius Weft Hair Extensions (50-120g)_100% Remy Human Hair.

Jet Black (1) Genius Flex Weft Hair Extensions (100-120g) [Clearance]

Genius Weft 100-120g 18"-100g-1pc

$126.29 USD -49% Regular price $247.62 USD

Genius Weft 100-120g 18"-100g-1pc

or 4 interest-free payments of$31.57with
Buy It Now
  • 5 stars: 50 (96%)
  • 4 stars: 0 (0%)
  • 3 stars: 0 (0%)
  • 2 stars: 0 (0%)
  • 1 star: 2 (4%)
This product has no reviews of its own. The merchant grouped it with related products, so the reviews shown are from across that group.
A
Anonymous
I’ve been using this website to get all my

I’ve been using this website to get all my extensions for over a year now and truly they’re just as good as the other brands that are double the price. I also have got my exact color match to my hair, and that’s rare.

S
Sarina Samtani
Amazing hair

I'm obsessed the color match is perfect and they were a fraction of the other brands price

J
Jennifer Simpson
Love them

The Genius Weft is incredible! It is comfortable and snug! Color is perfect!

K
Kandy B
Beautiful

The quality and color are beautiful. Communication with staff is excellent! Great experience !

S
Sara Miller

I had an issue with one of the orders and they came through for me so I will be ordering through them again

L
Lydia Rivera

love the hair - will be purchasing more

Y
Yesenia F.
Genius Weft 24” Dark brown

Really great quality and the length is perfect!

E
Erika Moreno
Hair natural soft and silky

I was hesitating on ordering from goo goo. I was reading reviews and I must say I saw nothing but positive feedback, so I desired to give it a try. I must say it exceeded my expectations. I am ordering again. The hair feels soft and natural. The blend is amazing. Absolutely recommend

T
Trinity
Perfect hair!

Installs well, able to cut weft. Great value for price. The hair is soooo soft and beautiful and matches my hair color very well, looks so natural but also gives thickness

B
Bethanie
Beautiful and affordable!

The wefts are so light weight and beautiful

F
Felicity Nash
My Sensitive Scalp Loves This

I have a very sensitive scalp and usually struggle with wefts. This Genius Weft is a dream. The narrow PU edge is so soft and flexible that I feel no irritation. The no-return-hair design means no poking or itching. Plus, the higher density gives me the dramatic volume I've always wanted.

H
Harper Quinn
Second Purchase – Even Better Than Before

I loved the lighter Genius Weft, but this 100-120g version is even better. The higher density gives me more dramatic volume with the same invisible wear. The double-layer construction is brilliant—it's dense yet lightweight. The narrow PU edge is undetectable, and the no-return-hair design keeps my scalp comfortable.

G
Georgia Vance
The Perfect Balance of Density and Discretion

This weft masterfully balances substantial density with the discretion of the ultra-thin PU edge. The double-layer construction provides incredible volume, yet the narrow edge is so fine that it's completely invisible. No return hair, no irritation—just beautiful, natural-looking fullness.

C
Cassidy
Genius Weft! Great!

This is my second GOO GOO purchase, and the 100-120g Genius Weft is even better than I expected. The higher density gives me the full, voluminous look I've always wanted, while the ultra-thin PU edge ensures invisible wear. The no-return-hair design keeps my sensitive scalp happy. Worth every penny!

D
Danielle Pierce
Volume Without the Bulk

I was worried that 100-120g might feel heavy, but the double-layer construction is so well-designed that it's actually lightweight. The density is incredible—my hair looks twice as thick—yet the narrow PU edge is so thin that it disappears against my scalp. No return hair, no itching. Absolute perfection.

E
Eliza
Perfect for Full-Head Transformations

For a full-head installation, this weft is ideal. The higher density means fewer wefts needed for complete coverage, and the double-layer construction provides consistent, luxurious volume. The ultra-thin PU edge is completely invisible, and the no-return-hair design keeps my scalp comfortable. Highly recommend!

A
Alexandra
Substantial Volume, Invisible Comfort

This 100-120g Genius Weft is the perfect balance of density and comfort. The higher weight gives me the substantial volume I've always wanted, yet the ultra-thin PU edge remains completely invisible. The double-layer construction is genius—it's dense but still feels lightweight. No return hair, no itching. Absolutely perfect!

B
Brianna Hayes
Double the Density, Double the Impact

I've tried the lighter version, but this weft is on another level. The double-layer construction provides incredible density that transforms my thin hair into a full, luxurious mane. Yet the narrow PU edge is so thin and flexible that it's completely undetectable. No irritation, no bulk—just stunning volume.

G
Georgia Vance
A Dream for Thin Hair

My hair is very thin, so I need extensions that add volume without adding bulk. This Genius Weft is perfect. The ultra-thin weft disappears against my scalp, and the hair blends seamlessly. It's so lightweight that there's no pulling or tension. I finally have the full hair I've always wanted.

H
Harper Quinn
Perfect for My Bridal Look

I used this Genius Weft for my wedding hair, and it was flawless. The invisible wear meant no worries in photos, and the lightweight design kept me comfortable all day. My stylist loved how cuttable it was for a custom fit. Thank you, GOO GOO, for helping me feel beautiful on my special day.

F
Felicity Nash
Lightweight Luxury

This weft is incredibly lightweight—I honestly forget I'm wearing it. The flat design means no bulk, and the invisible wear is flawless. The no-return-hair construction is gentle on my scalp. It's the perfect balance of comfort and beauty. Worth every penny!

E
Eliza Thornton
GOO GOO's Genius Weft is a Must-Have

This is my second purchase from GOO GOO, and their Genius Weft might be their best yet. The ultra-thin, flat design is so comfortable I forget it's there. The no-return-hair feature means no itching, no irritation. The hair quality is superb—soft, shiny, and easy to style. I'm a customer for life.

C
Cassidy
Perfect for My Sensitive Scalp

As someone with a very sensitive scalp, finding comfortable extensions has been a struggle. This Genius Weft is the answer. The weft is so soft and flat, with no return hair to poke or itch. It's lightweight and breathable. I finally have the volume I want without the irritation I used to suffer.

D
Danielle Pierce
Undetectable Blend, Even Up Close

The invisible wear of this weft is incredible. I wore it to a family gathering and no one could tell I had extensions. The ultra-thin edge blends so naturally with my scalp. It's cuttable too, so my stylist customized it perfectly for my head shape. Highly recommend!

B
Bridget Keller
No More Itchy Scalp!

I have a sensitive scalp and most wefts make me itch like crazy. The no-return-hair design of this Genius Weft is a miracle. It's so gentle and doesn't irritate at all. I can wear it for weeks without any discomfort. The invisible wear is just the cherry on top. Thank you, GOO GOO!

A
Alicia
The Ultra-Thin Design is Genius

I've tried many wefts, but nothing compares to this Genius Weft. The ultra-thin, flat design is a game-changer. It lays so seamlessly against my scalp that it's completely undetectable. No bulk, no visible lines—just beautiful, natural-looking volume. The lightweight feel means I forget I'm wearing it. Absolutely love it!

U
Uma Peterson
I LOVE IT. I LOVE GOO GOO

This is my third GOO GOO purchase, and it proves they understand what women want: substantial, natural-looking volume with zero compromise on comfort. The double-layer construction is brilliant, the ultra-thin PU edge is invisible, and the no-return-hair design is gentle on my scalp. A truly exceptional product.

U
Uma Peterson
The Perfect Balance of Form and Function

This Genius Weft is the perfect balance of form and function. The ultra-thin, flat design provides invisible wear that's truly undetectable. And the hair itself is gorgeous—soft, shiny, and easy to style.

N
Natalie Bishop
Perfect for Daily, Long-Term Wear

I've been wearing this Genius Weft for weeks, and it still looks and feels amazing. The ultra-thin design means no matting or tangling, and the no-return-hair feature keeps my scalp comfortable. It's the perfect solution for anyone wanting long-term, invisible volume.

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