Switching Toothbrush Supplier: How Do I Keep Specs and Tooling?

When switching toothbrush supplier, give the new manufacturer a complete written specification and a signed reference sample, and settle tooling ownership in writing. Then approve new samples side by side against that reference before any production order. Keep the old supplier running in overlap until the new samples are signed off.

The sections below follow that order: what to collect, who owns the molds, how to re-approve the brush, what to re-check on the pack, and how to keep stock moving during the change.

What records should I gather before contacting a new toothbrush supplier?

Collect every document that defines your current brush before you speak to a new manufacturer.

The core record is the written specification. This is the document that lists every agreed property of the product. For a manual toothbrush it should cover:

• Bristle grade. This is the stiffness category of the filament, such as soft or medium, plus the filament material and diameter.
• End-rounding. This is the polishing of each bristle tip so that it is rounded rather than cut flat. Record the requirement and how it is checked.
• Trim profile. This is the shape the bristle field is cut to, such as flat, rippled or with shorter centre rows.
• Tuft layout. This is the pattern and number of bristle bundles on the head.
• Head and handle dimensions, including neck shape and handle length.
• Colors, referenced to physical color standards or agreed color codes.
• Logo placement, including position, size and print or emboss method.

Alongside the written specification, gather these records:

• Signed reference samples. A signed reference sample is a physical brush that buyer and manufacturer both approved as the standard for production. Keep several sealed and dated.
• Artwork and packaging files in editable, print-ready formats, with dielines for blister cards, boxes or sleeves.
• Packing details: units per inner pack, inner packs per carton, carton markings and pallet pattern.
• The change log from earlier orders. This lists every approved deviation, material substitution or design tweak since launch.

Who owns the toothbrush molds, and can they be transferred?

Read the tooling clauses in your existing agreement with the current supplier before you plan a mold transfer. Tooling here means the injection molds for the handle and the tufting fixtures that set the bristle pattern.

Look for clauses that answer these questions:

• Who paid for the molds, and does payment transfer ownership?
• Does the agreement allow the buyer to take the molds to another factory?
• Is notice required, or are there open invoices that must be settled first?
• Who is responsible for mold maintenance, and what condition are the molds in now?

After that review, there are two routes.

Transfer the existing molds. The new manufacturer must confirm in writing that its machines can run the molds. It should inspect their condition on arrival and report any repair needed before trial runs.

Make the brush on the new manufacturer's own tooling. The new factory builds or adapts molds to your specification and reference sample. Confirm in writing who owns the new tooling and where it is stored. Also confirm who maintains it and what happens to it if the relationship ends.

Either way, put ownership, storage, maintenance and release terms in a signed document before the first trial run.

How do I re-qualify my own-label toothbrush with the new manufacturer?

Re-qualification means checking the new factory's brush against the signed reference sample before you approve production. Do it with physical samples on the same table, not with photos.

A practical sequence:

1. Compare side by side. Place the new samples next to the signed reference sample from the old supplier.
2. Check bristle feel. Press both bristle fields with a thumb and compare stiffness and tip finish.
3. Check the tuft layout. Count the tufts and compare pattern and trim profile against the specification.
4. Measure dimensions. Use calipers on head length, head width, neck and handle, and record the readings.
5. Check colors. View handles and prints under the same light against the agreed color standard.
6. Check pack fit. Put the brush into the existing blister, box or sleeve and confirm it seats correctly without forcing.
7. Sign a new reference sample. Once every point matches, buyer and new manufacturer sign and date a fresh reference sample. Each side keeps one.

Record any difference you accept as a numbered entry in the change log.

Which packaging and regulatory details should I re-check when production moves?

Before the first packs are printed, review the artwork and the product file line by line with the new manufacturer.

Regulatory classification per market. Confirm how a manual toothbrush is classified in each country you sell into. Then confirm what the new manufacturer must provide for that classification. Check with your regulatory adviser or the relevant authority rather than relying on the previous supplier's paperwork.

On-pack information. Check any statement on the pack that names who makes the brush or where it is made. Check addresses and contact details printed on the pack as well.

Batch identification. Agree the batch or lot code format with the new manufacturer. Agree where it is printed and how it links back to production records.

Labelling rules for California. For products and packaging sold in California, CalRecycle states that "labeling restrictions established by SB 343 apply to products and packaging manufactured after October 4, 2026" (CalRecycle). According to CalRecycle, that deadline may be affected by ongoing litigation. If you sell in California, review any recyclability symbol or claim on your artwork against that guidance before the new packs are printed.

How do I keep supply running while switching toothbrush supplier?

Plan the handover so that the old supplier keeps shipping until the new supplier's samples are approved.

• Keep the current supplier informed as appropriate. Follow the notice terms in your agreement. Arrange the tooling release, if any, in an orderly way.
• Time the last order from the old supplier. Place it with enough stock to cover the period until the new factory's first production lot is approved and delivered.
• Hold the overlap until sign-off. Do not cancel the old supply until the new reference sample is signed and a first production lot has passed your inspection.
• Agree change-control terms from the first order. Change control is a written rule that the manufacturer must tell the buyer about any change and get written approval before making it. This covers material, filament, colorant, molds, process or packaging. Put this in the supply agreement with the new manufacturer before the first purchase order.

When does an existing functional toothbrush design under my own label fit my range?

An existing functional design fits when your current brush serves the same user as a design the new manufacturer already makes. With an existing design, the head shape, tuft layout and handle are already defined, and re-qualification covers your label, colors and packaging. With a custom specification, re-qualification also covers the full specification and tooling.

A custom specification is the right route when the exact shape, feel or tooling of your current brush is part of your brand. In that case, follow the full transfer and re-qualification steps above.

SANGSI Co., Ltd. is an oral care manufacturer based in South Korea. SANGSI offers OEM and private label toothbrush manufacturing for brand owners and distributors. SANGSI's functional toothbrush range can be supplied to distributors under the distributor's own label (private label). Each product in that range has its own audience:

• SANGSI's orthodontic toothbrush is designed for people wearing fixed orthodontic appliances.
• SANGSI's implant and post-surgical care toothbrush is intended for people with sensitive gums or recovering from dental implant surgery.
• SANGSI's wide-head toothbrush set is intended for people who use clear aligners.

Compare your current product with the existing design for the same audience before deciding which route to take.

What should I include in my first inquiry to a new toothbrush manufacturer?

Include these points in a first inquiry to a new manufacturer:

• The product type and its intended user.
• The written specification, or a summary of its key points.
• Clear photos of the signed reference sample from several angles.
• Whether you own transferable tooling or need the manufacturer's own tooling.
• Your target markets, so regulatory and labelling needs can be reviewed.
• Your packaging format and whether the artwork files are ready.
• Whether you are open to an existing functional design under your own label.

Send physical reference samples once the manufacturer confirms it can review them.

FAQ

What should I hand over first when changing toothbrush suppliers?
The signed reference sample, together with the written specification and the change log. Hand them over as one set.

Can I move my toothbrush molds to a new factory?
Only if your existing agreement allows it. If it does, the new manufacturer must confirm in writing that it can run and maintain the molds. If not, agree ownership of any new tooling in writing.

How do I check the new supplier's brush against the old one?
Compare new samples side by side with the signed reference sample. Check bristle feel, tuft layout, dimensions, colors and pack fit, then sign a new reference sample before production.

Do I need to review packaging when production moves?
Yes. Re-check regulatory classification per market, on-pack manufacturer details and batch coding. If you sell in California, review recyclability claims against the CalRecycle SB 343 guidance.