How hair extensions attach: rows, tapes, beads and bonds

What is actually holding the hair

Maybe a friend let you feel the back of her head and you found a neat little ridge under the hair. Or you ran your fingers through a set at the root and felt tiny beads. Either way, the question is the same: what is that, and is it pulling on her hair?

Every extension method answers it a little differently, but the basic idea never changes. A review of hair camouflage options in the International Journal of Women's Dermatology describes extensions as strands of synthetic or human hair attached to existing hair fibers by glue, braids, sewing or clips. Nothing is attached to the skin. Your own hair carries the weight, which is why the way it grips matters more than the brand on the package.

Salon 11:11 offers five methods: hand-tied wefts, volume wefts, tape-in, I-tip and keratin bond extensions, listed on the Hair Extensions service. Those five use four kinds of attachment. The table below puts them side by side, and the sections after it walk through each one.

Wefts: a row of beads, then a curtain of hair sewn on

A weft is a long, thin band of hair, like a curtain with a very short rod. Bellami, the brand Justice is certified in, describes beaded weft extensions as installed by sewing a weft onto a beaded foundation, which it defines as the row of beads used to support a weft installation. So the install happens in two steps: first a line of small beads is set along a horizontal section of your hair, then the weft is sewn to that row.

Bellami says the beaded foundation helps spread the weight of the extensions more evenly, which supports comfortable wear and easier maintenance and removal. Spreading weight along a row, instead of hanging it from a few points, is the main reason wefts can carry a lot of hair.

Hand-tied and volume wefts attach the same way but are built differently. Bellami's method page says hand-tied wefts are lightweight and thin, and notes that a hand-tied weft can unravel if it is cut. Volume wefts are machine-sewn and denser; Bellami describes its version as made for maximum fullness and root volume and lists it for medium to thick hair. As your hair grows, the row travels down with it, and a move-up brings it back up near the root.

Tape-ins: a thin section pressed between two tabs

A tape-in is a short, flat panel of hair with an adhesive strip along its upper edge. Bellami describes the construction as hair attached to mesh and covered by a polyurethane tab, held with medical-grade adhesive so the tapes contour to the head. That flat tab is why tape-ins tend to lie close to the scalp.

The usual application is a sandwich. A tape manufacturer's install guide describes it as sandwiching the natural hair between two wefts prepared with tape: one panel goes under a thin, clean section of your hair and a second presses onto it from above. Bellami adds that tape-ins can be applied double-sided or single-sided depending on your natural density, so very fine areas may get one panel and a single-sided tape instead of a full sandwich.

Adhesive has a few dislikes. Bellami lists frequent water exposure, an excessively oily scalp, and regularly wearing high-tension styles as reasons someone may not be an ideal tape-in candidate. On the plus side, the panels can be re-taped and reused when they are moved up.

I-tips and keratin bonds: one small strand at a time

Strand methods skip rows and panels. Each extension is a small bundle of hair with a tip at the end, and it is attached to a matching small strand of yours. Because there are many small attachment points instead of a few lines, Bellami describes both strand methods as offering 360-degree mobility.

I-tips are secured with a bead. Bellami's method page says they are installed strand by strand using a looping tool and copper flare beads, and that the polyurethane tip acts as a cushion between the hair and the bead. There is no heat, adhesive or keratin involved. Because nothing is glued, the same hair can be reused and repositioned higher as your hair grows. Bellami's care advice is to keep conditioner, oils, silicone products and direct heat off the attachment point.

Keratin bonds are fused. Each extension ends in a keratin tip, and a heated fusion tool bonds that tip to a small strand of your hair. Bellami notes this allows precise placement closer to the hairline and in finer areas. The bonds are not moved up the way beads and tapes are; Bellami says they stay in until it is time for a full removal and replacement.

How each one comes out

Removal is where the attachment type matters most, because undoing it is the opposite of putting it in. None of these is a pull-it-out job, and the existing guide on choosing an extension stylist treats removal as a proper booked appointment for that reason.

• Wefts: the stitching and the beads that hold the row are undone. Bellami presents its beaded foundation as designed for easier maintenance and removal.
• Tape-ins: a professional remover is sprayed at the bond to dissolve the adhesive, the tape is worked loose, then the panel comes off your hair. The panels can be re-taped for the next install.
• I-tips: with no glue or heat to undo, the work happens at the bead, and the strand can be repositioned or reused.
• Keratin bonds: a remover is applied to each bond, a tool loosens it, and the strand is slid off your hair. Bellami recommends new hair for the next install rather than re-tipping the old strands.

Tension, comfort, and why it starts with a consultation

Every method shares one risk: steady pulling on the hair that carries it. The same dermatology review notes that traction alopecia can result from the constant tension of extensions on natural hairs. The American Academy of Dermatology puts the practical test plainly: if you feel pain or have a headache, the style is too tight, and you should ask your stylist to loosen the affected area.

That is why the method gets chosen for your hair and not the other way around. At Salon 11:11, a free 30-minute Hair Extension Consultation with a custom color match is required for all new extension clients, maintenance appointments are tailored to your method, and Justice is a Bellami Certified Hair Extension Artist. If you want to see how the methods compare for fine hair, thick hair, swimming or ponytails, read hand-tied vs tape-in vs keratin. If you are wondering whether you are ready at all, the extensions readiness checklist goes item by item.