





YoungSee Flat Silk Weft Hair Extensions are made with a layer of ultra-thin silk base weft, with a thickness of 0.75-0.85mm. The lightweight, flat structure allows the weft to lie flat against the scalp, providing a seamless and natural appearance. Made from 100% human hair, the cuticles are intact and aligned, and the top of the weft has no return hair, ensuring maximum comfort when worn. They can be cut freely, and the installation process is simple, making them one of the most practical types of hair extensions in the hair wefts category.
Product Details
- TYPE: Weft Hair Extensions (100% Virgin Human Hair)
- COLOR: Photographed from the actual product, but the color may vary slightly due to lighting, angle, and monitor settings.
- WEIGHT: 50g / bundle, 100-150g for a full head
- LENGTH: 16"-24"
- SETTING: Can be washed, dyed, cut, styled and curled
- TEXTURE: Natural straight, with a natural wave when wet or left to air dry or diffused.
- LIFESPAN: 6-12 months
How many packs do I need?
Minimum | 2-3 bundles |
Medium Hair | 4-5 bundles |
Thick Hair | 6-7 bundles |
- All hair types
- All skill levels
- All-day comfort and secure styling
- Elevating any look to a polished style!
Why Choose Virgin Hair?

- Soft and smooth, wear-resistant. Tests show that virgin hair is more durable than remy hair. Its superior moisture retention makes it softer and smoother, reducing tangling.
- Long-lasting. The cuticles of virgin hair are more intact, making the hair healthier. With proper care, virgin hair can typically last a year or longer.
- Freedom to style and color. Virgin hair is easier to dye or style, while remy hair may have limitations in coloring.
- Cost-effective. Although virgin hair is more expensive due to its higher quality, when considering its lifespan, the daily cost of remy hair is roughly $1 higher than that of virgin hair. Therefore, virgin hair is a more cost-effective choice.
Similarities:
Both are made from 100% human hair, which can increase the length and thickness of the hair. With proper care, they can last up to a year.
Differences:
1.Weft Thickness:
Flat silk wefts have a thickness of 0.75-0.85mm, making them an innovative ultra-thin weft option.
2.Return Hair:
Machine wefts have 0.8-1 inch of return hair, while flat silk wefts have no return hair, making them more comfortable to wear.
3.Flat Fit:
They use a lightweight, flat silk base that seals, allowing for a smooth and seamless fit against the scalp, resulting in a more natural and invisible appearance.
How to Wash Hair Extensions?

SLS, sodium lauryl sulfate, sodium laureth sulfate, denatured alcohol, ethanol, SD alcohol 40, propanol, Isopropyl alcohol and propyl.These ingredients strip the hair of its natural oils, leading to drier hair more prone to tangling or matting. Prolonged use can significantly impact the integrity of your hair, reducing the lifespan of your extensions.
Opt for Sulfate-Free Shampoo:
Avoid shampoos containing sulfates as they can harm hair extensions. While sulfates create lather, they strip natural oils from the hair, resulting in dryness and frizz.
How to Care Hair Extensions?
- Washing & Conditioning: Wash the hair extensions with a sulfate-free and paraben-free shampoo. Gently massage it in, avoiding rough movements, and rinse thoroughly with cool water. Limit washing to two or three times a week.
- Detangling: Use a wide-tooth comb or a loop brush for hair extensions to gently detangle, starting from the ends and working up to the roots without tugging.
- Drying: Pat the hair extensions dry with a towel to remove excess water. Avoid rubbing to prevent tangling, and let them air dry to minimize heat damage
- Bedtime Care: Before bed, loosely braid or tie the hair in a low ponytail to prevent tangling. Use a silk or satin pillowcase to reduce friction and minimize hair breakage.
- Avoiding Chemicals: Limit exposure to chlorine from pools and saltwater from the ocean, as they can damage hair and cause fading or dryness.
- Regular Maintenance: Schedule regular maintenance appointments with a stylist to keep the extensions secure and in good condition.
- Avoiding Heavy Products: Avoid heavy styling products or oils near the attachment points to prevent slippage and loosening of the extensions.
Shipping Policy
Orders on YoungSee placed before 9 PM Eastern Time from Monday to Friday will be shipped the same day. However, we cannot ship orders for out-of-stock items, incorrect addresses, or pre-sale items right away.
We use several shipping options, including FedEx, DHL, USPS, UPS, and CNE.
Expedited shipping takes 4-7 business days, and standard shipping takes 10-20 business days.
For more details, please click to view:Shipping Policy
60-Day Return & Exchange

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WHY WE LOVE IT
- Ultra-Thin and Customizable: The silk base has a thickness of 0.75-0.85mm and can be easily cut without shedding.
- No Return Hair: The interior features ultra-fine stitches to reduce scalp irritation, making it comfortable for sensitive scalps.
- Secure and Durable: The silk base is sealed with a double-stitch design, minimizing the risk of shedding, and can last up to a year with proper care.
- Seamless Comfort: The lightweight, flat structure hugs the scalp, blending seamlessly with natural hair for an almost invisible look, reducing the bulkiness common in other extension types.
- Flexible Installation, Minimal Damage: Can be installed with sew-in, tape, or beads methods, with lightweight strands that reduce tension on natural hair.
- Heat and Dye Friendly:High-temperature resistant – just use a heat protectant!
- Eco-friendly:packaged in 100% recyclable and reusable boxes.

Flat Silk Weft Install
- Using Hair Clips: Simply attach the extensions to your hair in a matter of seconds, and you can easily remove them whenever you want. Just sew small clips onto the weft of the extensions. Make sure the color of the clips matches the color of the extensions.
- Using Tape: This method can hold for several months. Simply place the tape at the seams of the extensions and then stick the extensions onto your hair.
- Using Beads: You can secure the extensions strand by strand with beads.
- Sewing Directly onto Hair: Gather your hair into a ponytail and sew the extensions directly into your hair. Make sure to use special needles and thread designed for hair extensions.
Frequently Asked Questions about Flat Silk Wefts
Genius weft is thinner and suitable for all hair types, especially fine or thin hair. However, flat silk weft is more affordable.
Yes! It can be cut anywhere without fraying or falling apart.
- Wash your hair 2-3 times a week with sulfate-free shampoo.
- Avoid using oily products near the roots and prevent overheating around the scalp.
- Regularly and gently brush your hair to avoid tangling.
- Sleep with loose braids or a silk scarf to prevent tangling overnight.
Yes, our flat silk weft extensions are made from 100% human hair and can safely be dyed and styled with heated tools. Just be sure to use protective styling products to prevent damage.