Same Formula, Two Brand Names: One CNF or Two

A soap maker wrote in asking about a situation that comes up constantly with private label and co-packing arrangements: the exact same formula, same INCI list, same concentrations, gets sold under a boutique's house brand and also under the maker's own label. Does that need one CNF or two?

Two. The Cosmetic Notification Form is tied to the product as it reaches the consumer, and the brand name on the label is part of what identifies that product to Health Canada. An identical formula under a different name is treated as a separate notification.

Why the formula being identical does not merge them

It helps to think about what the CNF is actually for. It is a notification that a specific cosmetic product, as labeled and sold, is entering the Canadian market, filed through the Cosmetic Notification System within 10 days of first sale. The chemistry is one input into that filing, but the filing itself describes a marketed product: its name, its brand owner or the person responsible for the notification, its ingredient list at the concentrations used. Two products with different brand names are, for notification purposes, two different market entries even if you could pour them from the same batch tank.

This is not Health Canada being bureaucratic for its own sake. Enforcement, recalls, and post-market questions all get directed at the product as consumers know it. If a complaint comes in about "GlowSkin Body Butter," the CNS record needs to exist under that name so it can be found and matched, regardless of whether "Basel's Body Butter" three towns over is chemically the same thing.

What actually differs between the two filings

The good news is that filing the second one is not starting from scratch. Once you have done the ingredient work for the first brand, the second filing is largely a duplicate with the names swapped:

• Product name and brand: changes to match the second label.
• Ingredient list and concentrations: identical, since it is the same formula.
• Responsible party: may be the same company or a different one, depending on who owns the private label relationship. This is worth nailing down explicitly, because the CNF asks who is notifying, and if the boutique brand is doing its own filing under its own name, that is a separate legal party taking on the notification.
• CN number: each filing gets its own, they do not share one.

The private label ownership question

This is the part that catches people out more than the mechanics of duplicating a filing. When a formula is white-labeled, someone has to be the notifier for each brand version, and it is not automatically the original manufacturer. If the boutique is putting its own name on the label and controlling that brand's marketing, Health Canada generally expects the party responsible for that specific product on the market to be behind its notification, whether that is the manufacturer filing on the boutique's behalf under an agreement, or the boutique filing it themselves with the manufacturer's ingredient data supplied to them.

Get this settled in writing between the two parties before either filing goes in. We have seen cases where a manufacturer assumed the boutique would file, the boutique assumed the manufacturer had it covered, and neither filing existed until a routine spot check surfaced the gap.

What happens if the formula changes later

Because these are two independent filings, an ingredient change to one brand's formula does not automatically apply to the other, even if you decide to change both recipes identically. Each brand's CNF gets its own amendment when its formula changes. If you update your body butter's preservative system across both brands at once, that is two amendment filings, not one covering both.

Likewise, if you ever discontinue the private label arrangement but keep selling under your own name, only that brand's CNF needs a discontinuation filed. The other stays active on its own timeline.

A simple way to keep this from becoming a mess

Situation	CNF action
New brand launches with existing formula	New CNF, new CN number
Formula changes, both brands still selling it	Amendment on each brand's CNF separately
One brand discontinued, other continues	Discontinuation on the retired brand only
Third brand added later, same formula	Another new CNF

Keep a simple internal map of which CN number belongs to which brand name and which formula version, because it is easy to lose track once you are running three or four private label relationships off one base recipe. If you are managing several brand variants of the same product, Cosmetic Comply lets you duplicate a past filing for a minor variant, which speeds up exactly this kind of same-formula, different-name situation without making you re-map every ingredient from scratch.