Teeth whitening kit buyer's guide: gel, light and market
A private-label whitening kit is specified by its gel, its tray, its light and its pack contents. This guide sets out the gel chemistries, the peroxide limits by market, the tray and light options and the electrical file, so the questions can be put for one exact reference and one market.
Start with the exact reference and your market. The formulation, electrical, packaging and document questions can then be checked for that pair; this is not a product-fit decision.
Gel chemistries
| Chemistry | How it is quoted | Notes for a brand |
|---|---|---|
| Hydrogen peroxide | By percentage present or released | The figure every market caps. The cap is on hydrogen peroxide present or released, so a carbamide gel is counted by the hydrogen peroxide it releases. |
| Carbamide peroxide | By percentage, roughly three times the hydrogen peroxide it releases | Slower release, common in tray gels. Counted under the same caps once converted. |
| Peroxide-free (PAP and similar) | By percentage of the active | Not listed with a limit in the EU cosmetic annexes, so it is neither capped nor approved there; its safety rests on your product safety report. Do not describe it as approved anywhere. |
Ask for the gel formulation and percentage available for the exact reference.
The peroxide limits by market
The limits differ by market, for consumer sale and for sale through a dental practitioner. The sources are named in the compliance by market guide.
| Market | Consumer sale | Through a dental practitioner |
|---|---|---|
| European Union | Up to 0.1% hydrogen peroxide present or released | Above 0.1% up to 6%, first use under a dentist's supervision; above 6% prohibited |
| United Kingdom | Up to 0.1% | Above 0.1% up to 6%, dental professionals only |
| Australia | Hydrogen peroxide 3% to 6%, or carbamide peroxide 9% to 18%, with prescribed warnings | Above 6% hydrogen peroxide or 18% carbamide peroxide, dental practitioners only |
| Canada | pH above 4.00 required; above 3% hydrogen peroxide equivalents needs a clinical study on salivary peroxide | Same rules; the study is the gate |
| United States | No federal percentage cap was found; the gel is a cosmetic unless it claims to change the structure or function of the teeth; facility registration and product listing apply | Professional products follow the same cosmetic rules |
Trays and lights
- Tray. A thin EVA boil-and-bite tray moulded so the gel stays on the front teeth, or a one-size silicone tray. The fitting guide explains why the seal at the gum line matters.
- Light. A 16-LED tray light, powered from a phone through a three-way cable set (XMD-WHT-001) or from a USB socket, or a battery-powered handle. A phone-powered light has no battery to declare; a battery light adds battery rules in most markets.
- Electrical file. A 5-volt light sits outside the EU low-voltage directive but inside the electromagnetic compatibility and restricted-substances rules, with a declaration of conformity and test reports; the United States asks for an emissions report. Request them for the exact quoted reference.
- Pens. 2 ml and 4 ml pens with a brush tip, sold alone or in the kit (XMD-WHT-002). Print the volume, the chemistry and the expiry date on the pen and the box.
What a kit ships with
A typical kit is the tray, the light, the cable set, two or three pens, an instruction card and a colour box; XMD-WHT-003 ships with three pens. Confirm the exact reference, pack contents, pen count, cable set and tray options on the quotation.
Listing wording
Describe the kit by its verified contents, the gel by its verified chemistry and percentage, and the light by its LED count and power. Claims about shades, speed or permanence need the brand's substantiation. Consumer instructions and warnings come from the verified product instructions and the brand’s market review; the sales desk does not invent them.
Your message opens in WhatsApp with the page name added, so the desk knows what you are looking at.
Or write to sales@xinmeidaoralcare.com.
Notes
Market permission. This guide does not establish that a formulation is permitted, suitable or available for a particular market, and the desk's answer on formulation and document questions does not establish market permission, suitability or availability. The buyer and brand confirm their own market review and product responsibilities.
Peroxide limits. The limits were checked on 6 September 2026 against the sources named in the compliance by market guide. They can change, and this guide is not legal advice; confirm the current limits with your own regulatory adviser before you order. The table is a research prompt for the brand's market review; it does not select, approve or establish the availability of a formulation for a particular market.
Electrical documents. Confirm their availability, scope, holder and permission to share or rely on them before treating them as support for your market.