The Supplier Sent an INCI List: What to Check Before Filing

Getting an INCI list from a supplier feels like the finish line. It is not quite. Suppliers are generally trying to help, but the list they send is not automatically filing-ready, and treating it as gospel without a second look is one of the more common ways small errors end up on a notification.

Start by checking it is actually INCI, not a trade or marketing name

The single most common issue is a list that mixes true INCI names with trade names, marketing names, or shorthand the supplier's own sales team uses internally. A supplier blend called "HydraSmooth Complex" is not an INCI name, it is a product name, and it needs to be expanded into its actual component ingredients (each with its own real INCI name) before it belongs on a notification. If a "list" you received has entries that sound like product names rather than chemical or botanical names, that is your first flag.

Real INCI names follow recognizable patterns: Latin binomial names for botanicals (Lavandula Angustifolia Oil), standardized chemical names (Cetearyl Alcohol, Phenoxyethanol), and a small set of common names adopted into the system (Water listed as Aqua, Honey listed as Mel). If an entry does not look like any of these patterns, check it.

Watch for descending order that does not quite make sense

INCI lists are supposed to run in descending order of concentration. If a supplier's list has water somewhere in the middle instead of near the top, or has a preservative listed before a major emollient, that is worth a question back to the supplier. It might be a simple copy-paste error in their document, or it might mean the list you received was not built carefully. Either way, worth confirming rather than assuming it is fine.

Check for missing minor ingredients

Suppliers sometimes send an INCI list that covers the "main" formula but omits minor components like a stabilizer, a small amount of pH adjuster, or a trace preservative booster, especially if those were added by a co-packer or a second-tier supplier rather than the original raw material manufacturer. Ask directly: "Is this the complete INCI list including all minor ingredients and processing aids, or just the primary components?" It is a fair question and a legitimate supplier will have a straight answer.

Confirm percentages, or at least ranges, came with it

An INCI list alone is not enough for a notification, since concentration or a concentration range needs to accompany it. If the supplier sent names only, go back and ask for percentages or ranges for each. This is especially important for anything that might be a restricted ingredient on your market's prohibited or restricted list, since whether it is compliant can hinge entirely on the concentration.

A short verification checklist

Before you treat a supplier's INCI list as filing-ready, run through this:

1. Every entry looks like a real INCI name, not a trade name or blend name
2. The order looks like a plausible descending concentration order
3. You asked whether this is the complete list including minor ingredients and processing aids
4. You have percentages or ranges for every ingredient, not just a name list
5. Any supplier blend on the list has been expanded into its actual component ingredients
6. Any ingredient you do not recognize has been looked up rather than assumed

What to do with genuinely unfamiliar entries

If an entry looks legitimate but you simply do not recognize it, look it up rather than guessing at what it might mean. A botanical Latin name you have not seen before, or a chemical name that sounds unfamiliar, is worth a quick search against an INCI reference before it goes on your filing. Assuming based on a vague resemblance to something else you know is how the wrong ingredient occasionally ends up screened against the wrong entry on a prohibited or restricted list.

Why this extra pass is worth the time

A notification is only as good as the ingredient data behind it. Health Canada's Cosmetic Notification System, and equivalent systems elsewhere, rely on you supplying accurate INCI names and concentrations, since the whole screening process against the Hotlist depends on the ingredient actually being identified correctly. A trade name slipping through as if it were an INCI name does not just look sloppy. It means the real ingredient behind it was never actually checked against the restricted list at all.

This is exactly the gap Cosmetic Comply's matching step is built to catch. Feed it a supplier's raw list, trade names and all, and it works to resolve each entry to its correct INCI name and CAS number, flags entries it cannot confidently match, and expands any blend it recognizes into its real components, so you are filing what the product actually contains rather than what the supplier's marketing copy called it.