Short answer
A perfume development workflow has nine stages — brief, material selection, first formula, trials, evaluation, revision, approval, compliance check, and batch and release — and each stage should leave a specific record behind. The checklist below lists what to do and what to write down at each one. Use it as written, or adapt it into your lab's own procedure; the value is in doing the same steps, in the same order, every time.
Stage 1: brief
- Describe the intended smell, product type, target concentration and audience.
- Note constraints: cost per gram, materials to avoid, natural-only, deadline.
- State how success will be judged, and who decides.
Record: the brief, dated, with a project code. How to write a fragrance brief has an outline.
Stage 2: material selection
- Shortlist candidate materials from the library; smell them in dilution against the brief.
- Check each candidate's IFRA status for the product category.
- Confirm stock, or order samples with documents.
Record: the shortlist and evaluation notes, linked to the project.
Stage 3: first formula
- Build a core accord by ratio trials, then a short first formula.
- Write it by weight, with every dilution, as version 1.
Record: formula code, version 1, date, materials with dilutions and amounts.
Stage 4: trial
- Calculate weights for the trial size; check that the smallest row suits the balance.
- Weigh, mix, label (code, version, date), and dilute to the target strength if evaluating as a finished product.
- Rest it for the planned time.
Record: actual weights, material lots for anything critical, date mixed.
Stage 5: evaluation
- Evaluate at fixed time points on blotter and skin, side by side with the previous version.
- Involve other evaluators where the brief requires.
Record: observations per time point, comparison with the previous version, decision.
Stage 6: revision
- Change one thing (or one purposeful group) per version.
- Keep the total controlled, by compensating or renormalizing.
- Return to stage 4.
Record: new version number, what changed, why.
Stage 7: approval
- Confirm the approved version against the brief with the decision-maker.
- Mark it approved and lock it against edits; further changes become new versions.
Record: approval date, who approved, and the version.
Stage 8: compliance and safety
- Check IFRA conformity at the intended dosage and category.
- Calculate allergen levels for labelling in each target market.
- Assemble supplier documents; commission or update the product safety assessment.
- Start stability observations in the final packaging.
Record: the calculations, the amendment and regulatory versions used, the assessment, and the stability plan.
Stage 9: batch and release
- Scale the approved version to the batch; check stock of every material and dilution.
- Make the batch to a batch sheet; record actual weights and lots.
- Rest, chill and filter as specified; compare with the approved reference.
- Fill, label, retain a sample, release.
Record: the batch record, linked to the formula version and material lots. See how to structure a perfume batch record.
Records at a glance
| Stage | Record |
|---|---|
| Brief | Brief document with project code |
| Selection | Shortlist and notes |
| First formula | Formula v1 |
| Trial | Actual weights, lots, date |
| Evaluation | Notes per time point, decision |
| Revision | New version with change log |
| Approval | Approved, locked version |
| Compliance | IFRA and allergen calculations; safety assessment |
| Batch | Batch record; retained sample |
Adapting the checklist
A one-person lab can merge stages and skip sign-offs, but should keep the records. A small team should add a second check of batch sheets before weighing. The strategic view — roles, approvals and how the workflow scales with a business — is in building a fragrance development workflow. For laying out the physical lab that this workflow runs through, see how to organize a perfume formulation lab.
In software, statuses can mirror the stages. RUŌOD Lab gives each formula one of five statuses — Draft, Testing, Approved, Production and Archived — and a lock that prevents an approved formula from being deleted, which maps naturally onto stages 3 to 9.
Frequently asked questions
Isn't this too much process for a hobbyist?
The records take minutes per trial and save hours later. Hobbyists can skip approvals and compliance stages for personal use, but the formula, trial and evaluation records are what make learning cumulative.
Where should the checklist live?
Wherever it will be used: printed at the bench, or as a template in your records system. A checklist nobody sees is not followed.
Written and reviewed by the RUŌOD Lab team. This article is general education about perfume formulation and record-keeping; it is not legal, regulatory or safety advice, and the examples are illustrations, not validated commercial formulas. How we write and check these guides.