What Is a Hair System? Parts, Types and How to Start

What is a hair system? It's a thin, scalp-shaped base with human hair set into it, held on with tape or glue over the area where your hair has thinned, and cut into the hair you still have. It isn't a wig. It covers only the thinning area, and most are bonded on, so they stay on day and night for 2 to 4 weeks at a time. Then it's cleaned and put back on, and after about three months of wear it's replaced with a new one.

You'll also hear it called a toupee, a hairpiece, a hair unit (what wearers call one piece) or a hair patch. It's also called non-surgical hair replacement, because nothing is implanted or sewn in. How it differs from a wig is in toupee vs wig vs hair system.

Think of it as four things working together: the base, the hair, the bond and a routine of upkeep.

Most men who ask us this have only seen one in a video. So here's one taken apart, using the 30 hair systems we sell. A typical full unit is an 8 × 10 in base with 5 in of human hair, and costs $209 to $479 (November 2026).

What is a hair system made of?

Every hair system has the same few parts. Here they are on the men's units we sell (November 2026):

• The base: the thin layer that sits on your scalp, shaped like a low dome. It's lace (a fine mesh), thin skin (a clear polyurethane film) or mono (a sturdier mesh). Our thin skins run from 0.03 mm to 0.12 mm thick.
• The edge: most of our lace units have a poly band around the outside, usually clear and often about an inch wide, and some mono units have a cream poly-coated edge. That's where the tape or glue goes.
• The front: the hairline is built differently from the rest. Some units have V-looped hair along the front (each hair looped through the skin, so there's no knot to see); many lace units have bleached knots along the front, so the tiny knots are harder to see.
• The hair: every hair system for men in our store is human hair, 5 inches long with a 30 mm wave, cut to your length when it's fitted.
• How full it is: product pages give this as a percentage. Our units run from 80% (light) to 120% (medium); the higher the number, the more hair.
• The size: 28 of our 30 units come in 8 × 10 inches, and a few also come smaller. It's trimmed to the shape of your thinning area at the fitting.

The hair is held in the base one of three ways: knotted into lace or mesh, V-looped through skin, or injected into skin (set into the film itself). That's what product pages mean by "knotted thin skin" or "injected skin". Two of our units use Remy hair; Remy vs virgin hair explains the difference.

Hair system types

When people ask about the different types of hair systems, they usually mean the base. Our store sorts them the same way. Prices are our selling prices (November 2026):

• Lace: a fine mesh with the hair knotted in, often with a poly edge for the bond. The lightest, and it lets air through. 13 units, $269 to $479. Browse lace hair systems.
• Thin skin: a clear polyurethane film that looks like scalp. Glue cleans off its smooth surface quickest. 12 units: full-size ones $209 to $449, plus the two partials below. Browse thin-skin hair systems.
• Mono: a tougher mesh than lace; some have a poly-coated edge. It takes cleaning and reattaching better than lace. 5 units, $259 to $429. Browse mono hair systems.
• Lace fronts: 5 of the units above have a separate lace front built onto the body, $259 to $339. Browse lace front hair systems.

There are three other ways people sort types of hair systems:

• By coverage: a full unit covers the top of the head; a partial covers just the hairline or the crown. Ours are a frontal hairline piece (1 × 6 in up to 4 × 7 in, $199) and a 5 × 5 in crown piece ($179). See full cap vs partial hair systems.
• By how it's held on: most are bonded with tape or glue and stay on for weeks. A clip-on hair system clips to your own hair and comes off at night.
• Stock or custom: a stock unit is ready-made and cut in to fit you; a custom one is made to order from your measurements. Everything in our store is a ready-to-ship stock unit.

Which one suits you is its own question. How to pick the right hair system walks through it, and our toupee buying guide puts lace, thin skin and mono side by side. Each base in depth: poly vs lace, thin skin, mono.

How a hair system stays on

Tape or glue on the edge of the base holds it to a shaved patch of scalp. It stays on day and night, in the shower, in bed and at the gym, until the bond is redone every 2 to 4 weeks; how soon depends on the person. A wig is the opposite: it covers the whole head and comes off every day.

The bond in more detail: how a hair system works.

How a hair system is fitted

In our chair, a first fitting takes about 2 hours, in four steps:

1. The area under the unit is shaved and cleaned, so the bond sits on smooth skin.
2. The base is trimmed to the shape of your thinning area.
3. It's taped or glued into place.
4. It's cut into your own hair so the two blend. The cut-in is what makes it look like your hair rather than something sitting on top.

After that, the upkeep every 2 to 4 weeks is on the same unit: it comes off, the area is shaved, the old glue is cleaned off, and the unit is washed and put back on.

Can people tell you're wearing a hair system?

Nobody can honestly promise it will never be noticed. What decides it is mostly the unit you pick and how it's cut in:

• The hairline: a V-looped front, or bleached knots along a lace front, reads softer than a hard edge. On many of our units the front knots aren't bleached in the darkest (#1, #1A) or lightest (#7, #7ASH, #18, #22) colours, so if your hair is very dark or very light, check the knot details on the product page.
• The cut-in: a unit cut and blended into your own sides and back looks like your hair. One that just sits on top doesn't.
• Colour and density: match the hair on your sides, including any grey, and don't go fuller than it. Our lightest units are 80% density. More on both in toupee vs wig vs hair system and what makes a hair system look real.
• Replacing on time: after about three months the hair thins and fades, and that's when a unit starts to show.

What a hair system costs to wear

In round numbers (November 2026):

• The unit: $209 to $479 for a full-size unit in our store; partials from $179.
• How often: about three months of daily wear per unit, then it's replaced, not repaired. That's about four a year: about $840 to $1,920 a year in units, or roughly $70 to $160 a month.
• At our salon: $250 for the first fitting, then $100 a visit every 2 to 4 weeks if we do the upkeep. Colour is $45, or $145 with a visit. Fitting each new unit: ask us.
• Not counted: tape or glue and remover (our store doesn't sell them) and tax. Shipping is free on every US order.

Holiday Sale: until Jan 15, every hair system in our online store is 20% off the regular prices on this page, taken off at checkout. Salon prices aren't part of the sale.

Our guides to how long a hair system lasts and what a hair system costs do the full math.

Why do men choose a hair system?

If you want your hair back now, without surgery, cut the way you like it, a hair system is the one route that gives all three at once:

• Hair on the day it's fitted. You walk in thinning and walk out with a full head of hair, cut in, after about 2 hours.
• No surgery, nothing to undo. Nothing is implanted. If you stop, the unit comes off and the hair under it is still your own.
• It doesn't depend on what you have left. The hair is already in the base, so it covers a bald crown or a bare front just as well as a thin one.
• A haircut you choose. Swept back, parted, short or long, at a density that matches your sides.
• Day and night wear. Bonded, it stays on in the shower, in bed and at the gym, so there's nothing to put on in the morning.

The trade-off is upkeep: a visit every 2 to 4 weeks and a new unit about every three months, covered in the next section.

Does a hair system help your confidence?

That depends on how much your hair loss bothers you, and that varies from man to man. A study that followed 1,027 Finnish men from birth found no link between pattern hair loss and depression or anxiety at 33 to 35, though its authors note that earlier studies found a strong effect, especially in younger men (Acta Dermato-Venereologica, 2025). If it doesn't bother you, you don't need one. If it does, that's reason enough.

There's little research on hair systems themselves. The closest is a 2017 UK survey of 338 people with alopecia, almost all women wearing wigs: 46% said wearing one had a positive effect on their everyday life, and the main downside was worry about it being noticed (BMJ Open). That worry is why the cut-in, the colour match and replacing on time matter so much: a unit you don't have to think about is the point.

Does a hair system suit your life?

The other side of it: a hair system suits you if you're fine with all of these:

• keeping the area under it shaved
• a visit every 2 to 4 weeks (or doing it yourself)
• a new unit about every three months
• tape or glue on your skin (toupee adhesives are a known cause of allergic skin reactions, MedlinePlus notes)

If that sounds like too much, other routes include a shaved head or scalp micropigmentation; we compare them in hair system vs SMP vs a shaved head.

Women wear hair systems too, as toppers and full systems, at the same salon prices; see women's hair replacement. The units in our store are men's.

A hair system covers hair loss; it doesn't treat it. If your loss is sudden or patchy, or your scalp itches or hurts, consult a dermatologist or doctor first; the American Academy of Dermatology notes that treatment can help stop or slow hair loss.

How to get your first hair system

Buying your first one online

Start with our hair systems for first-time wearers, or the one starter pick per base in our toupee buying guide. A new unit arrives uncut, so it still needs trimming, bonding and cutting into your own hair: by us, by a stylist near you, or by you, with your own tape or glue (our store doesn't sell them). Shipping is free to US addresses. Before you order, how to choose a hair system walks through size, density, colour and what you can't undo once it's cut. Questions about a unit or a colour: info@hairsystemsalons.com.

Having it fitted

Never had one fitted? Come in for the free 30-minute consultation first; if you like the plan, we can fit it the same day. The fitting is $250, with a unit from our store or one you bring, and a maintenance visit after that is $100. It's a private suite, there's no contract, and we're in Huntington Beach, Monday to Saturday, 9am to 5pm. Book a free consultation.

If a shaved patch, a fresh bond every few weeks and a new unit every few months fit your life, start with one stock unit from our first-time wearers collection.

Sources and further reading

• Androgenetic alopecia, MedlinePlus Genetics (US National Library of Medicine): how common pattern hair loss is in men and women.
• Hair loss, MedlinePlus Medical Encyclopedia: hairpieces as one way to cover hair loss, and why they should never be sewn to the scalp.
• Hair loss: Who gets and causes, American Academy of Dermatology: hereditary hair loss is the most common cause, and treatment can help.
• Contact dermatitis, MedlinePlus: toupee adhesives are a common cause of allergic skin reactions.
• Association of male androgenetic alopecia with psychosocial and sexual well-being in early middle-aged men, Järvinen et al., Acta Dermato-Venereologica (2025): no link with depression or anxiety in 1,027 Finnish men aged 33 to 35.
• A mixed methods survey of social anxiety, anxiety, depression and wig use in alopecia, Montgomery et al., BMJ Open (2017): 46% of 338 respondents said wearing a wig had a positive impact on everyday life.

Frequently asked questions

Does your own hair keep growing under a hair system?

Yes. A hair system doesn't change your own hair, and the hair under it keeps growing. That's why the area is shaved again at every maintenance visit, so the tape or glue goes back on smooth skin.

Can you install a hair system yourself?

Yes, you can learn to. At home it's the same routine as a maintenance visit: take it off, clean it, shave the area and put it back on with your own tape or glue, because our store doesn't sell them. For a first unit, it helps to have a stylist cut it in, because the cut-in is what blends it into your own hair.

Can you get a hair system with grey hair in it?

Yes. 15 of our 30 units offer a Human Grey shade, and most offer grey mixes. How to read the codes and match your temples is in how to choose a hair system.