Amateur perfumery

Perfumery is the composition of fragrance from individual odorous materials — essential oils and other naturals, and the far larger family of aroma chemicals, which are single defined molecules whether synthesised or isolated. A finished perfume is a formula: a list of materials with weights, diluted in alcohol and left to settle.

The craft has three distinct skills and they are learned in order. Recognising materials is the foundation and the part nobody expects to take months — smelling single materials on blotters, repeatedly, until you know them by name in the dark. Structure is the compositional part: how materials combine, how a blend evolves as the volatile top notes leave and the heavier base remains, and how an accord is built from three or four things that together smell like a fourth. Formulation is the arithmetic and the record-keeping, which is unglamorous and is what separates a craft from a series of accidents.

The honest shape of the hobby is that the first six months are spent smelling and writing rather than making anything good, and that people who skip that stage produce mixtures for years without understanding why they do not work. It is closer to learning an instrument than to cooking.

The first six months

Smelling single materials

Never estimated

Weights

Best purchase

A course, before more materials

What this page will not give you

Usage percentagesDeliberately. See below.

1. 1

   Step 1: Buy twenty materials, not two hundred

   A small deliberate palette — a few citruses, a few florals, a woody, a musk, a couple of aldehydes and a resin. A large palette bought at once is unlearnable and is the commonest way to spend three hundred pounds and stall.

   You will know it worked when: A set small enough to actually know.

2. 2

   Step 2: Smell each one, daily, on a blotter, for weeks

   One at a time, labelled, and revisited at intervals as it dries down. Write what you smell in your own words rather than the supplier’s. This stage is the craft and it is the one everybody tries to skip.

   You will know it worked when: Materials you can recognise blind.

3. 3

   Step 3: Build two-material accords

   Pairs, at several ratios, weighed and recorded. Two materials teach more about proportion than ten do, because you can hear what each is doing.

   You will know it worked when: An understanding of ratio rather than of recipe.

4. 4

   Step 4: Get your limits from the material, not from a forum

   Before anything touches skin, look up the current IFRA Standard for that material and read your supplier’s safety data sheet. This is a per-material habit, not a one-off lesson.

   You will know it worked when: Sourced numbers, from the body that sets them.

5. 5

   Step 5: Keep a formula book from the first day

   Every trial, weighed, dated, with what you thought at one hour, one day and one week. Without it a good accident cannot be repeated and a bad one cannot be diagnosed.

   You will know it worked when: A craft that compounds rather than resets.

• Scales reading to 0.01g — The single most important object on the bench. Formulae are weight-based percentages and drops are not a unit — drop size varies with material, pipette and temperature.
• A small, chosen palette — Twenty to thirty materials covering the main families. Growth should follow a gap you have noticed, not a sale.
• Perfumer’s alcohol — Denatured to a specification suitable for fragrance. What you dilute into, and what most beginners under-buy.
• Blotters, in quantity — Smelling strips, labelled and dated. Evaluation happens on paper over hours and days, not on skin in a moment.
• Glass, pipettes and labels — Amber glass for storage, disposable pipettes to avoid cross-contamination, and labels on everything. An unlabelled bottle is a lost material.
• Nitrile gloves and ventilation — Cheap, and the entire practical answer to a hazard that accumulates silently.
• What can wait indefinitely — Rare naturals, a large palette, and beautiful bottles. None of them improves a composition and the first is how people spend hundreds before they can smell what they bought.

1. 1

   Step 1: Knowing twenty materials

   Recognition by smell, with your own vocabulary for each. Months, and the whole foundation.

   You will know it worked when: A trained nose, at small scale.

2. 2

   Step 2: Building accords deliberately

   Two and three material combinations that do what you intended. The point at which composition begins.

   You will know it worked when: Intention rather than accident.

3. 3

   Step 3: A first complete fragrance

   A structured formula with a top, a heart and a base, weighed, diluted, macerated and evaluated over weeks.

   You will know it worked when: Something you would wear.

4. 4

   Step 4: Working to a brief

   Composing to a constraint — a material you must feature, a mood, a budget. The exercise that most improves a self-taught perfumer.

   You will know it worked when: Craft under discipline.

5. 5

   Step 5: Formal training, or a distinctive style

   A course, an apprenticeship, or simply years of your own direction. Both routes exist and the second is more common than the trade suggests.

   You will know it worked when: A practice of your own.

• Natural does not mean gentle — Several of the most potent sensitisers in the craft are essential oils, and citrus oils additionally include phototoxic components. The natural-versus-synthetic distinction has no bearing on skin safety and is the most persistent misconception in amateur perfumery.
• Sensitisation is cumulative and permanent — The risk is not a burn from one exposure but an immune response built up over many, after which even very small exposures can provoke a reaction. That is why bench discipline matters more here than the acute hazard would suggest.
• Work with concentrates off the skin — Nitrile gloves, a ventilated space, no eating at the bench, and blotters rather than wrists for evaluation. Testing on skin belongs to finished dilutions, not to materials.
• Perfumer’s alcohol is flammable — High-strength ethanol in open containers near any ignition source is the one conventional fire risk in the craft, and it is easy to forget because nothing about the work feels hazardous.
• Selling changes everything — A fragrance sold to the public brings cosmetic product safety, assessment and labelling obligations that vary by jurisdiction and are not a formality. This page is written for people making for themselves.

Amateur perfumery has an unusually studious culture, because the barrier to entry is knowledge rather than money and the community that formed around it is mostly self-taught and rigorous about it. Forums maintain material lists, share evaluation notes and argue about structure in a way that resembles a discipline more than a hobby. It is also small, which means good material is findable and bad material is repeated forever.

The tension worth naming is between the natural perfumery tradition and the mainstream of the craft. The former works only with naturals for reasons that are partly aesthetic and partly a belief about safety, and the second half of that is not supported: naturals are complex mixtures containing several of the most significant sensitisers used in fragrance. Both traditions produce beautiful work; only one of them is right about the chemistry.

The commercial layer is thin and pleasant compared with most crafts. Suppliers are small, specialist and generally honest about what they sell, and the main way money is wasted here is self-inflicted — buying palette rather than buying training.