In short
A formula is finished for a given purpose when it meets the criteria you wrote before you started, and when further changes no longer make a difference you can detect blind. Without a stopping rule, revising can go on for ever. For a study composition, "finished" means only that: it says nothing about safety or readiness for sale.
What you will learn
- Set a stopping rule before you start
- Recognize when revisions no longer matter
- Decide to stop, pause or abandon
Before this lesson: Compare Two Versions Blind: Study Guide
Three signs you may be done
- It meets the brief. Check the criteria you wrote. If you never wrote any, write them now, and be honest about the fact that you are writing them afterward.
- Your changes have stopped showing. If three successive versions cannot be told apart in a blind test, then you are no longer changing anything anyone can smell.
- You are changing things back. Your log shows the same line going up, then down, then up. You are circling.
Three signs you are just tired
- Everything seems flat, including the good versions.
- You have lost the ability to describe what you want.
- You have been smelling the same thing for days, and you cannot smell the base at all.
Before you decide anything, take at least a week away from it. Then compare the current version and an earlier one blind. Many perfumers report that a fresh return can reverse a decision. That is a working habit rather than a measured finding, but it costs little to do. Olfactory fatigue explains part of why.
Three possible decisions
| Decision | When | What to record |
|---|---|---|
| Finished for this purpose | Criteria met, and nothing more is noticeably improving it | Final version, criteria, evaluation, what is still weak |
| Paused | You are tired, or need a material or skill you do not have yet | What is missing, and when to come back |
| Abandoned | Several rounds without moving toward the brief | Why, and what you learned |
Abandoning is a professional outcome. Commercial briefs often go through many mods, and many submissions never win. The guide to mod tracking shows how much is left behind in real projects. Accords you built on the way can often be reused.
Stopping a study is not releasing a product
Everything in this level has been on paper strips. A finished study is not ready to wear, give away or sell. Before any of that, a formula needs checks that Stage D covers: restrictions, allergen declarations, stability and a qualified safety assessment for the market in question. Even after a product launches, you might still revise it under change control. For now, the decision you are making concerns learning, and nothing more.
A stopping rule you can write now
Before your next composition, finish this sentence: "I will stop when ... or after ... rounds, whichever comes first." It may be "when two people independently connect it with the brief, or after ten rounds." Having that sentence changes how you work, because it gives you a way of noticing that you have arrived.
Practical exercise: Write and apply a stopping rule
- Choose your longest-running composition.
- Look through its log. Count the versions, and mark any line that went up and down repeatedly.
- Take a week off from it, if you have not already.
- Compare the latest version blind with one from several rounds ago.
- Decide: finished, paused or abandoned. Write the reasons, and record one thing you will do differently.
You have done this well if your decision is written, dated, based on what you found, and you can stop working on that formula without guilt.
Common mistakes
- Never stopping. Endless small changes teach little after a point.
- Stopping when you are tired and calling it done. Come back first.
- Confusing finished with safe. Those are entirely separate questions.
Knowledge check
Written and reviewed by the RUŌOD Lab team. This is general education, not legal, regulatory, medical or safety advice. Example dilutions and exercises are for learning, are not validated products, and have not been safety-assessed. Completing a lesson confers no qualification. How we check these lessons.