After the core levels
Go deeper in one direction after the core levels, ending in a specialist project. Take any track once you have finished the level it builds on.
After Level 7
Deeper GC-MS and headspace work: method choices, reading real data, and what reconstruction can honestly claim.
9 lessons · Outcome: An analytical dossier on one natural material, built from published data, stating what the data can and cannot show.
After Level 7
Structure-odor relationships, stereochemistry and the literature behind modern aroma chemicals.
8 lessons · Outcome: A literature review of one odor family, relating structure to odor and marking where the evidence runs out.
After Level 6
Sustained composition practice: studies of style, restraint and complexity, with structured critique.
8 lessons · Outcome: A short collection of three related compositions with a written account of each decision and a structured critique.
After Level 9
How to design, run and report a fragrance experiment that someone else could check.
8 lessons · Outcome: A complete research report on a small fragrance question, with its design, data and limitations stated so that someone else could check it.
After Level 8
Fragrance for soap, detergent, home and personal care: bases, stability and dosage in the product.
8 lessons · Outcome: A written adaptation plan taking one fragrance into two product bases, with its test plan and the checks it still needs.
After Level 10
Compliance and quality systems in depth, kept to current primary sources and dated.
8 lessons · Outcome: A quality and compliance file for one of your own fragrances, marked with what a qualified person must confirm.
Each track says what it requires. Some methods need instruments or facilities most independent learners do not have, and those lessons separate what you can do yourself from what you should learn conceptually or commission.
A track is a serious project: expect a few months each, and they can be taken in any order once you have finished the level each one builds on.
