The toxicologist review
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Why it is unusual
Most of what a small maker owes is documentary and self-performed: write the label correctly, keep the records, measure the fill. This one requires a named external professional, and the regulation says so directly.
What you submit
The product formulation. Not a description, not a category, not a list of the interesting ingredients. The review is of what is actually in the product at the concentrations it is actually in.
What comes back
An evaluation of chronic hazards and a recommendation for the precautionary labeling. For many ordinary craft formulations the answer is that no chronic hazard labeling is required, and the product then carries the conformance statement alone.
Which is the outcome to aim for
A product that needs no chronic hazard warnings is easier to sell, easier to label and easier to ship. Where there is a choice between two solvents that do the same job, that outcome is worth weighing in the formulation rather than discovering afterwards.
The evidence standard
Generally accepted, well-established evidence. That cuts both ways: it stops a cautious reviewer attaching warnings to everything, and it stops a producer arguing away a hazard the literature has settled.
Budget the time, not just the fee
The review sits between the formula and the artwork, and the artwork sits between the review and the print run. A launch date set from the print lead time alone will be wrong by however long the review takes.
Keep the record with the batch
The formulation submitted, the date, the reviewer and the recommendations returned. A reformulation two years later is impossible to assess against a review nobody can produce.
And re-read it when the container changes
The review is about the formulation rather than the packaging, but the labeling it recommends has to physically fit on the panel. A move to a smaller bottle can turn a satisfied requirement into an unsatisfied one without a word of the formula changing.