Individually Inserted Hair Construction
Individual hair strands are inserted into the PU base with controlled spacing, direction, depth, distribution, and retention according to the approved product specification.
Epoche Hair · Since 2004
Invisible Clip-In Hair Extensions
Invisible Clip-In Hair Extensions use individually inserted hair and thin PU bases to create a refined, low-profile top without a traditional stitched weft seam. Piece configurations, base specifications, set weights, colors, clips, and private-label packaging can be customized.
Hair Quality
Virgin Hair / Remy Hair
Length
12–30 inches
Weight
Customizable
Textures
Straight, Body Wave, Natural Wave +
Factory Direct · OEM / ODM · Private Label · Global Supply
Product Advantages
Designed Around Every Detail
Product Construction Detail 01
Thin, Flexible Polyurethane (PU) Base
PU formulation, width, thickness, flexibility, color, transparency level, surface finish, and edge profile can be developed and confirmed through sample evaluation.
Refined Outward-Facing Surface
The individually inserted hair construction creates a clean, low-profile outward-facing surface without the exposed raised seam used in traditional Classic Clip-In Hair Extensions.
Secure Pressure-Sensitive Clips
Clip material, size, color, spring tension, tooth shape, silicone lining, quantity, spacing, and attachment strength can be selected according to the approved piece construction.
Customizable Multi-Piece Set
Piece count, individual widths, hair weight, hair allocation, and clip quantities can be configured to provide wider back pieces and narrower side pieces within one coordinated temporary set.
OEM, ODM, and Private Label Development
Hair quality, lengths, textures, colors, long-hair ratios, piece configurations, PU specifications, insertion methods, clip options, set weights, labels, and packaging can be developed through sample confirmation.
Product Specifications
Available Configurations
Hair Quality
Virgin Hair
Remy Hair
Length Range
12–30 inches
Available in 2-inch increments. Final availability depends on hair quality, color, texture, total set weight, piece configuration, and confirmed sample specifications.
Weight Options
Customizable
Total set weight can be customized according to hair length, piece count, individual base widths, hair distribution, long-hair ratio, clip configuration, and packaging requirements.
Texture Selection
Straight
Body Wave
Natural Wave
Water Wave
Available Colors
#4
#60
#613
#P18-60
#P2-6
See Color Development & Matching below for the representative palette and custom matching options.
Long-Hair Ratio
18%, 24%, 28%, 30%, 35%, 40%, 45%
Single-drawn and double-drawn configurations are available. Final long-hair ratio depends on hair length, hair quality, color, total set weight, piece configuration, and confirmed sample specifications.
Installation Method View application guidance
Designed for temporary self-application with pressure-sensitive snap clips. Section the natural hair, position each Invisible Clip-In piece close to the roots, and close the clips securely without excessive tension. Place wider pieces across the back and narrower pieces around the sides, leaving sufficient natural hair above to cover the PU bases and clips. No adhesive, tape, heat, beads, or sewing into the natural hair is required.
Color Options
Color Development & Matching
Representative color options include #4, #60, #613, #P18-60, and #P2-6. Solid, piano, highlighted, rooted, ombré, balayage, and custom-matched colors are available. Final colors are confirmed through sample approval. See the Epoche Hair Extension Color Ring for additional representative color options.
#4
#60
#613
#P18-60
#P2-6
Product Overview
Product Construction & Key Details
Invisible clip-in hair extensions combine individually inserted human hair, thin polyurethane bases and snap clips. The injected construction creates a smooth top without a traditional stitched weft seam. Epoche Hair develops these reusable sets for brands, wholesalers and distributors seeking a discreet base finish.
Injected Hair and a Smooth Top
We insert individual hairs into the PU base to create the outward-facing surface. This construction avoids the visible machine-sewn seam found on a traditional weft. Instead, the hair emerges from the base for a refined top appearance.
During sample review, examine the hair direction, base surface and edge finish together. Also check the top from different angles. Placement and natural hair coverage still affect how discreet the pieces look during wear.
Thin PU Bases and Clip Layout
The flexible polyurethane base supports the hair and provides an attachment area for the clips. We develop base dimensions and piece widths around the agreed set configuration. Clip spacing then follows the width and intended position of each piece.
Buyers can specify clip color, size, material, spring tension and silicone lining. Review the base flexibility and clip attachment together when testing samples. This helps assess how each piece handles during application and removal.
Custom Invisible Clip-In Hair Extensions
Build your set with wider back pieces and narrower side pieces. Choose the piece count, individual widths and total set weight. We then coordinate the hair allocation across the set to match your target fullness.
Virgin Hair and Remy Hair options support different collection requirements. You can also specify lengths, textures and long-hair ratio. Confirm these details alongside the base specifications so the sample reflects the complete product brief.
View Full Product Details
Application, Removal and Care
Users section their natural hair, position the pieces and close the snap clips. This temporary attachment method requires no adhesive, tape, beads or heat. To remove a piece, open its clips before gently lifting it away.
For care, detangle from the ends upward while supporting the base. Avoid pulling on the hair at its insertion points. Keep the clips clean, and let the hair and base dry fully before storage.
Finally, confirm suitable washing products and styling temperatures during sample testing. Use those findings to prepare care instructions for your customers.
Color Matching and Product Comparison
Choose solid, blended or rooted shades for your range. Start with our hair extension color ring, or provide a physical sample for color development. Review the color through the lengths and near the base under consistent lighting.
For a broader comparison, explore the Clip-In Hair Extensions collection. Compare Classic, Invisible and PU constructions by their base structure, surface finish and sample performance.
Private-Label Sampling and Production
We customize invisible clip-in hair extensions with your chosen labels and packaging. Send your product brief with the target hair quality, color range, set configuration and base requirements.
Next, evaluate the samples for base finish, hair retention, clip performance and weight distribution. We confirm the specifications with you before bulk production. Contact Epoche Hair to discuss sample development for your brand.
OEM & Customization
Developed Around Your Collection Requirements
Epoche supports OEM, ODM, and private-label development for Invisible Clip-In Hair Extensions.
Customization options include:
- Virgin Hair or Remy Hair
- Hair length, texture, color, and long-hair ratio
- Single-drawn or double-drawn specifications
- Total set weight and hair distribution
- Number of pieces included in each set
- Individual piece widths and hair weight per piece
- PU material, formulation, color, and transparency level
- PU width, thickness, flexibility, surface finish, and edge profile
- Individual hair-insertion method, spacing, direction, and distribution
- Hair retention, insertion stability, and finished top alignment
- Clip quantity and spacing for each extension piece
- Clip material, size, color, spring tension, tooth shape, and silicone lining
- Clip attachment method, attachment strength, and replacement requirements
- Solid, piano, highlighted, rooted, ombré, balayage, and custom-matched colors
- Customized labels, set cards, hangers, storage bags, boxes, and private-label packaging
Hair specifications, PU construction, individual hair insertion, piece configuration, hair retention, clip performance, total set weight, color consistency, and finished workmanship are confirmed through sample evaluation before bulk production.
Care & Longevity
Preserve Quality, Structure and Appearance
Practical maintenance guidance helps preserve hair quality, protect the attachment area, maintain appearance and support longer service life.
Remove all Invisible Clip-In pieces before sleeping, showering, swimming, or exercising.
Close the clips before brushing, washing, drying, or storing the extensions.
Brush each piece gently while supporting the PU base and clip area with one hand.
Begin brushing from the ends and work upward without pulling on the inserted-hair area, PU base, edges, or clips.
View Complete Care Guide
Wash only when necessary using lukewarm water and a gentle, extension-safe shampoo.
Wash the pieces separately or in small groups while keeping the hair directed downward.
Apply conditioner and masks mainly through the mid-lengths and ends, keeping heavy products away from the PU bases, inserted-hair areas, and clips.
Do not soak the PU bases or metal clips in water for an extended period.
Do not twist, stretch, sharply fold, or wring the thin PU bases during washing or drying.
Rinse thoroughly, press out excess water gently, and allow the pieces to dry completely before storage.
Use heat protection on the hair lengths and keep heated styling tools away from the PU bases, inserted-hair areas, edges, and clips.
Avoid alcohol-based products, strong solvents, and harsh cleaning agents on the PU material.
Inspect the PU surfaces, edges, individual hair insertion, clips, and clip attachment points before each application.
Do not use pieces with cracked, torn, stretched, or separating PU; loose hair insertion; damaged clips; or weak spring tension.
Store the pieces clean, dry, detangled, and arranged flat or on a suitable extension hanger.
Have damaged clips or unstable hair-insertion areas repaired or replaced before continued use.
Manufacturing Control
Made for Repeatable Production
Each sample is developed around defined construction, hair, color and finishing requirements so approved specifications can be carried consistently into bulk production.
01
Injected hair placement and direction
02
PU base construction and finishing
03
Clip placement and attachment
04
Color consistency across production
05
Sample-to-bulk specification control
06
Private label and packaging execution
Frequently Asked Questions
Questions About This Product
What are Invisible Clip-In Hair Extensions?
Invisible Clip-In Hair Extensions, also known as Injected PU Clip-In Hair Extensions or Injected Clip-In Hair Extensions, are reusable temporary extensions made with individually inserted human hair secured within thin, flexible polyurethane bases. The construction creates a refined, low-profile outward-facing surface without an exposed traditional stitched-weft seam.
Why are they called Invisible Clip-In Hair Extensions?
The hair is individually inserted into a thin PU base rather than attached beneath an exposed traditional weft seam. This creates a finer outward-facing surface that can be less noticeable when correctly positioned beneath sufficient natural-hair coverage. Final visibility depends on placement, sectioning, color matching, and natural-hair coverage.
What is the difference between Invisible Clip-In and PU Seamless Clip-In Hair Extensions?
Both products use polyurethane bases, but their hair-attachment constructions are different. Standard PU Clip-In Hair Extensions, also commonly known as Seamless Clip-In Hair Extensions, use a continuous PU weft structure. Invisible Clip-In Hair Extensions use individually inserted hair to create finer outward-facing hair coverage and a more refined visible top profile. Base thickness, hair-retention method, flexibility, hair capacity, appearance, and price positioning should be confirmed independently through approved samples.
What is the difference between Invisible and Classic Clip-In Hair Extensions?
Invisible Clip-Ins use individually inserted hair and a thin PU base without an exposed traditional weft seam. Classic Clip-Ins use stitched wefts with clips attached along the sewn top edge. The products differ in construction, thickness, flexibility, appearance, manufacturing process, and target price positioning.
Can Invisible Clip-In Hair Extensions be reused?
Yes. Invisible Clip-In Hair Extensions are designed for repeated temporary application while the hair, PU bases, inserted-hair areas, and clips remain in suitable condition. Actual service life depends on hair quality, wear frequency, washing, heat styling, product use, storage, and the condition of the bases and clips.
Can Invisible Clip-In specifications and samples be customized?
Yes. Virgin Hair or Remy Hair, length, texture, color, long-hair ratio, piece count, PU dimensions, base color and transparency, individual hair-insertion construction, piece widths, hair distribution, total set weight, clip specifications, labels, and packaging can be customized. Samples can be evaluated before bulk production for base flexibility, edge stability, hair retention, clip security, weight distribution, color, and finished workmanship.
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