Hair Extensions Glossary (A–Z)

A

Attachment Method
The technique used to secure hair extensions to natural hair, such as sew-in, tape-in, clip-in, fusion, or microlinks.

B

Bundles
Pre-wefted sections of hair extensions sold by weight and length, commonly used for sew-ins and custom wig construction.

Brazilian Hair
A popular hair type known for its thickness, softness, and natural luster. Often sourced from multiple regions but labeled for texture style.

C

Closure
A small hairpiece (usually 4x4, 5x5, or 6x6 inches) placed at the crown to close off a sew-in and create a natural-looking part.

Clip-In Extensions
Temporary hair extensions attached with pressure clips, designed for easy installation and removal without professional help.

Cuticle Alignment
The direction of the hair cuticle layers. Proper alignment reduces tangling and increases longevity.

D

Density
The thickness or fullness of a wig or bundle, typically expressed as a percentage (e.g., 150%, 180%, 220%).

Double Drawn Hair
Hair extensions where most strands are the same length, creating fuller ends and a more uniform appearance.

E

Elastic Band Wig
A glueless wig secured with an adjustable elastic band for comfort and easy wear.

F

Frontal
A lace piece that runs ear-to-ear (typically 13x4 or 13x6), allowing for versatile parting and a natural hairline.

Fusion Extensions
Individual hair strands bonded to natural hair using keratin or adhesive, typically installed by a professional.

G

Glueless Wig
A wig designed to be worn without adhesive, using combs, elastic bands, or adjustable straps for security.

H

HD Lace
Ultra-thin, high-definition lace that blends seamlessly into the scalp, ideal for a natural, “melted” hairline effect.

Human Hair
Hair extensions made from real human hair, offering the most natural look, heat-styling flexibility, and long-term durability.

I

Indian Hair
Hair known for its lightweight feel and natural movement. Commonly blends well with many natural hair textures.

K

Keratin Bond
A protein-based adhesive used in fusion extensions to attach hair strands to natural hair.

L

Lace Closure Wig
A wig constructed with a lace closure at the crown, offering a natural part with minimal styling effort.

Lace Frontal Wig
A wig featuring a full frontal lace that allows multiple parting styles and realistic hairlines.

M

Microlinks (Micro Beads)
Small metal or silicone-lined beads used to attach individual hair strands without glue or heat.

N

Natural Texture
Hair textures designed to mimic untreated natural hair, such as yaki, kinky straight, or coily patterns.

O

Ombre Hair
Hair extensions featuring a gradual color transition from darker roots to lighter ends.

P

Peruvian Hair
Hair known for its lightweight feel and fullness without bulk, ideal for layered or voluminous styles.

Pre-Plucked Hairline
A wig or lace piece with a hairline thinned to resemble natural hair growth, reducing customization time.

R

Remy Hair
Human hair with all cuticles aligned in the same direction, resulting in less tangling, more shine, and longer lifespan.

S

Single Drawn Hair
Hair extensions with varied strand lengths, creating a more natural, tapered look at the ends.

Synthetic Hair
Man-made fiber hair designed to mimic real hair. Affordable and low-maintenance but limited in heat styling.

T

Tape-In Extensions
Flat weft extensions attached using medical-grade adhesive tape, known for a seamless and lightweight feel.

Texture Match
Selecting extensions that closely resemble the natural curl pattern or straightness of the wearer’s hair.

U

U-Part Wig
A wig with a U-shaped opening that allows natural hair to be left out for blending.

V

Virgin Hair
100% unprocessed human hair that has never been chemically treated, dyed, or permed.

W

Weft
The sewn or bonded edge that holds hair strands together in bundles or tracks.

Wig Cap Construction
The internal design of a wig that determines fit, breathability, and styling versatility.

Y

Yaki Texture
A straightened texture that mimics relaxed or pressed natural hair, offering a realistic, natural finish.