The first haircut tends to sneak up on you. One week it's soft fuzz, and the next it's in your baby's eyes or curling into a small mullet at the back. Then the scissors come out, and you have about thirty seconds to save a curl before it's swept up.

If you're wondering what to do with baby's first haircut lock of hair, the answer is simpler than it looks. Hair is tough. It needs three good decisions: how much to save, how to keep it clean and dry, and where it lives for the next twenty years. Below is a step-by-step for each, a label you can copy, and display ideas compared side by side.

How much of baby's first haircut should you save?

In short: save more than you plan to use. You can always use less later, but there's only one first haircut.

The right amount depends on where the hair is going:

• Baby book or memory box: any amount works. A small pinch is plenty, and some families save every clipping in one envelope.
• Locket: a few dozen strands, coiled into a tiny curl. Lockets hold much less than people expect.
• Shadow box or frame: a lock about as thick as a strand of spaghetti and at least an inch long. Anything thinner can look like a loose thread behind glass.
• Sharing: one extra small lock for each person who wants one, such as a grandparent or a second household.

A simple rule is to plan for three portions: one to display, one to keep in the dark as a backup, and one to share or tuck into the baby book. Baby hair often changes color or texture in the first few years. A backup stored away from light keeps the original shade, even if the displayed piece lightens over time.

Take the lock from hair you're trimming anyway, like the longest pieces at the nape of the neck or the bangs. If you're only tidying up, take it from the underside near the nape, where a small gap won't show.

How to cut and collect the lock on haircut day

At a kids' salon, ask the stylist to set aside a lock before they start, and bring your own envelope. The floor gets swept fast, and it's hard to tell whose curl is whose once it's down there.

At home, this order keeps things calm and keeps the lock in one piece:

1. Write the label first. Fill in the envelope before anything goes inside it. Pressing a pen on an envelope with hair in it can crush the lock.
2. Pick a good window. Aim for a time when your baby is fed, rested and not due for a nap. Clean, dry hair is the easiest to work with.
3. Set up safely. Use scissors with rounded tips, and have a second adult hold your baby on their lap or keep them busy with a favorite toy. Stop cutting whenever your baby turns their head, and keep the scissors, thread and envelopes out of reach the whole time.
4. Tie before you cut, if the hair is long enough. Loop a piece of cotton thread or embroidery floss around the section you want, knot it snugly, and leave long tails. Pinch the hair between two fingers below the thread, close to the scalp, then cut between your fingers and the thread. Your fingers stay between the scissors and your baby's skin, and the lock comes away already bundled.
5. Too short or too fine to tie? Pinch the lock between two fingers close to the scalp, snip on the far side of your fingers, and lay it straight onto a sheet of white paper or acid-free tissue. Fold the paper closed right away so it can't drift off the table. If your baby is too wiggly, pause and try again later rather than cutting on the move.
6. Take two photos. Get one of your baby mid-haircut and one of the lock on white paper near a window. The second photo lets you share the keepsake later without opening the envelope.

How to seal and store baby hair so it lasts

In short: clean, fully dry, wrapped in acid-free paper, in a closed box, in a stable room. Hair itself holds up well. What damages a hair keepsake is moisture, insects, strong light, and cheap paper or tape that yellows around it.

The steps to preserve a baby hair keepsake follow the same basics the National Archives recommends for family papers and photos: cool, dry, dark and steady, with no big swings in heat or humidity.

What you'll need

• ☐  Acid-free tissue paper (sold for storing photos and fabric)
• ☐  A small acid-free envelope, such as a coin envelope marked acid-free
• ☐  Cotton thread, embroidery floss or thin silk ribbon
• ☐  A soft pencil or an archival-ink pen
• ☐  A lidded memory box or archival box
• ☐  Optional: a clear archival sleeve made of polypropylene or polyester, never PVC

Each of these costs a few dollars at a craft store or photo-storage shop, and a single pack usually covers siblings too.

Step by step

1. Check that it's clean. Most first-haircut hair can skip washing. If it has food, lotion or oil in it, swish the tied lock in lukewarm water with a drop of mild baby shampoo, then rinse in plain water.
2. Dry it completely. Lay the lock flat on a paper towel for a full day, away from heaters and sun. Hair that goes into paper damp can grow mildew.
3. Wrap it. Fold the lock into a small square of acid-free tissue, like a tiny packet. This keeps strands from escaping each time the envelope is opened.
4. Seal it. Slide the packet into the labeled envelope and tuck in the flap. Don't lick the glue strip or tape anything inside. For a firmer close, put a small piece of archival tape on the outside of the flap only.
5. Store it. Lay the envelope flat in a lidded box with your other baby keepsakes, on a shelf in the main living space of your home. An inside closet is ideal.
6. Check it once a year. Pair it with a date you won't forget, like the birthday. Open the box, look for dampness or tiny holes, and close it back up.

Where not to keep it

• Attics, garages and basements. Heat, cold and humidity swing too much there. In a humid climate, keep the box in a room with air conditioning.
• Loose in a closet with wool. Clothes moths and carpet beetles eat keratin, the protein in both wool and hair. A closed box and a yearly check are enough protection. Skip mothballs, which are toxic to children and pets.
• A sunny shelf or windowsill. Sunlight lightens stored hair over time, the same way it lightens a head of hair over a summer.

Mistakes that ruin a hair keepsake

Most damage comes from well-meaning shortcuts. These are the ones worth skipping:

• Tape or glue on the hair. Adhesives yellow, turn brittle and pull strands loose. There's no clean way to undo them.
• Rubber bands and hair ties. Rubber breaks down, gets sticky and can fuse to the hair. Thread or ribbon lasts.
• Laminating. Heat presses the lock flat for good, and the plastic can cloud or peel at the edges. It's fine for a craft project, not for your only lock.
• Ordinary envelopes, construction paper or mystery scrapbook pages. Acidic paper yellows and turns brittle, and it can stain whatever touches it.
• An open dish or jar on a shelf. Dust, light and curious toddlers all get to it. If you want the lock out where you can see it, put it behind glass in a closed frame.

What to write on the label (copy this)

In twenty years, "first haircut" won't be enough. Whose was it, how old were they, and who held the scissors? Write the details now, while they're easy to remember, and use one envelope per child if you're saving for siblings.

First haircut: [Full name]
Date: [Month Day, Year] | Age: [__] months
Cut by: [who], at [home or salon name, town]
Hair then: [color and texture, e.g., fine, strawberry blond, one curl at the back]
One thing to remember: [e.g., sat on Grandpa's lap and clapped at the scissors]

If you'd like, tuck a short note into the envelope for your child to find later:

"You were [__] months old. Your hair was so fine it floated off the scissors. You [one thing you did that day]. We saved this piece for you."

If your family keeps a yearly New Year's time capsule, a print of the haircut photo and a copy of this label make a good entry for that year. Keep the hair itself in the memory box, where it's easier to check on.

Baby hair keepsake ideas: display options compared

Once the backup is stored, choose how you want to see or share the rest. Here's how the common baby's first haircut keepsake options compare.

Making a shadow box that lasts

Mount the lock on acid-free mat board instead of gluing it. Thread a needle with the long tails of the tie thread, pass them through the board, and knot them at the back, so nothing sticky touches the hair. Add the haircut photo and a copy of the label, then close the back of the frame with a paper dust cover to keep out dust and insects.

Choose UV-filtering glass or acrylic and hang the frame away from direct sun. In a nursery, secure it to the wall, out of reach, and never above the crib. A small frame like this sits naturally in a vintage, heirloom-style nursery alongside other framed pieces.

Lockets, ornaments and resin

For a locket, coil a few strands to fit and back them with a tiny circle of acid-free paper. Store it in its box when it isn't being worn. Keep lockets, pendants and chains away from babies and toddlers, since small parts and cords are choking and strangling risks.

A clear fillable ornament suits families who already add a dated ornament each year. Choose shatterproof plastic, hang it high on the tree, and store it indoors rather than in the attic with the rest of the decorations.

Resin is the one option you can't undo, so use a small portion, not your only lock. If you try it yourself, treat it as an adult-only project: gloves, good airflow and no kids in the room.

If your family has a first-haircut tradition

For many families, the first haircut is a ceremony, and the tradition decides what happens to the hair. A few examples:

• Many Muslim families shave a newborn's head in the first week as part of the aqiqah and give the hair's weight in silver, or its value, to charity.
• In the Hindu mundan ceremony, the child's head is shaved, often in the first or third year, and the hair is often offered rather than kept.
• In some Jewish communities, a boy's first haircut, the upsherin, waits until his third birthday.
• Some Chinese and Taiwanese families have a baby's first hair made into a calligraphy brush.

Customs differ by family and community, so ask your elders or faith leader what should be kept, given or offered. If your tradition allows keeping a little, the storage steps above still apply.

If you only do three things

Save more than you think you need. Make sure it's completely dry before it goes into paper. Write the label while the day is still fresh.

Everything else, from the shadow box to the envelope for Grandma, can wait a month or a year. The lock will keep. And as with anything that becomes an heirloom, the story written on that envelope is what will make it mean something to whoever opens the box years from now.

Frequently asked questions