Before a private label product can be placed on the EU market, two documents have to exist: a Cosmetic Product Safety Report and a Product Information File. Brands often assume the factory supplies both. In practice the factory supplies the technical inputs and the brand holds the file. The CPSR is a toxicological opinion built on the factory's data, and the brand is responsible for keeping it current. This article explains what each document contains and where the handover sits.

1. What a CPSR actually contains

A CPSR has two parts. Part A covers the safety assessment itself: the qualitative and quantitative composition, the toxicological profile of each ingredient, the foreseeable exposure, and the conclusion on whether the product is safe under normal use. Part B covers the supporting data: raw material specifications, stability results, microbiological quality, packaging compatibility and any preservative efficacy testing. Part A is the opinion and Part B is the evidence, and an assessor will not sign Part A without Part B in place.

The report has to be specific to the product, not to a category. Two products that differ only in fragrance or colour still need separate assessments. A CPSR written for a generic "face cream" will not hold up if the actual formula, pack or claim differs.

2. Who can sign, and where the liability sits

The CPSR must be signed by a qualified safety assessor with a recognised qualification in pharmacy, toxicology or a related discipline. The assessor can be in-house at the factory, independent, or engaged by the brand. The signatory carries professional liability for the opinion, which is why many factories provide data but decline to sign for a brand's own formula.

The Product Information File is held by the responsible person named on the label. If the brand is not established in the EU, that responsible person is an appointed entity inside the union. The name on the label and the holder of the file must match, and inspectors check this first.

3. Exposure and toxicological assessment in practice

The assessor calculates a margin of safety for each ingredient from the no-observed-adverse-effect level, the estimated daily exposure and the concentration in the formula. Exposure depends on where the product is used and how much is applied: a body lotion used over a large area at high dose is assessed differently from an eye cream used in small amounts. The same ingredient can clear in one format and fail in another purely because the exposure calculation changes.

Certain ingredients need extra attention: sensitisers with established limits, preservatives with restricted maximum concentrations, and nanomaterials with specific labelling duties. Any ingredient with a restriction has to be checked against the intended use category, not just against the concentration in the formula.

4. Assembling the PIF and justifying shelf life

The PIF bundles the CPSR with the product description, the manufacturing method, a declaration of GMP compliance, proof of the claimed effect where a claim is made, and the labelling artwork. The PIF is a living document, and any change to formula, pack or claim requires it to be updated before the product ships.

Shelf life justification usually combines accelerated stability data with real-time data at ambient conditions. The period after opening is justified separately, often with compatibility and microbiological challenge data. An unopened shelf life of 30 months plus a period after opening of 6 months needs two separate justifications, not one.

5. Working with the factory on the handover

Ask for the raw material specifications with purity and impurity limits, the certificate of analysis for each batch, preservative efficacy results against the relevant standard, compatibility data for the chosen pack, and the GMP certificate for the site. Request the specification documents at brief stage, because reconstructing them after a launch is slow and sometimes impossible.

Keep a change log. When the factory substitutes a raw material, the assessor needs to know before the batch is released, not after. A documented change control process protects both the brand and the assessor.

Brands can review reference formats in the product range, confirm site credentials on the workshop page, read about the company on the about us page, and request a documentation pack through the inquiry form. A reference facial cleanser shows the level of product detail normally supplied.