Perfume Raw Material Documentation: A Laboratory Guide

Why material records matter more than they seem

A formula is a list of references to materials. If the materials are poorly recorded, the formula inherits the ambiguity: "sandalwood 5%" means little if no one can say which sandalwood. Material records are also where the facts live that every other calculation depends on — price for costing, restricted constituents for IFRA checks, allergens for labelling, stock for production planning. A missing or wrong material record produces wrong answers everywhere it is used.

The fields of a good material record

Not every lab needs every field on day one. Start with identity, supplier, dilution, cost and IFRA limit, and add the rest as the library grows. What matters is that a field, once adopted, is filled consistently.

Identity: the field that causes the most trouble

Common names are ambiguous, trade names belong to one manufacturer, and natural materials vary by species, origin and process. Record enough to identify the material without doubt: a specific name, your own code, and the identifiers that apply — a CAS number for a single chemical, a botanical name and part used for a natural. Fragrance material names, CAS numbers and trade names explains each identifier and its limits. The difference between kinds of natural material — oil, absolute, resinoid, isolate — is covered in essential oils, absolutes, resinoids and isolates, and the broader comparison of naturals with synthetics in natural vs synthetic fragrance materials.

For naturals, identity includes more than a name: species, plant part, origin, extraction and — for some plants — chemotype, which can change both odor and allergen content; see essential oil chemotypes. For aroma chemicals, it includes the manufacturer, because some materials are specialties from one maker and others are not sold at all outside the company that created them; see captive fragrance molecules.

Documents: what each one is for

Suppliers provide several documents, and they answer different questions. The safety data sheet describes hazards and safe handling. The specification describes what the product should be. The certificate of analysis reports what a particular lot was measured to be. The IFRA certificate gives maximum use levels by product category. File each against the material, with its date, and replace it when the supplier issues a new one. Safety data sheets, specifications and CoAs explains how to read them.

Lots and suppliers

A material from a new supplier, or even a new lot from the same supplier, can smell different — especially naturals. Recording the lot number on each receipt, and which lot went into which batch, is what lets you explain a batch that smells wrong. How to document raw material supplier and lot changes covers what to record and when to re-evaluate.

The record starts with the purchase. Choosing sellers and asking the right questions before buying is covered in how to source perfume raw materials, and the quick check every delivery deserves — paperwork, appearance, odor against a retained sample — in checking raw materials when they arrive.

Stock and shelf life

Material records are also inventory. A quantity, a unit and a location turn a library into something you can plan with, and a price turns it into stock value. Dates turn it into a list of what is still fit to use: many materials degrade, citrus oils notably, and a dated record is the only reliable way to know. See fragrance raw material inventory and fragrance raw material shelf life and storage.

"Not recorded" is not "zero"

An empty price field does not mean the material is free, and an empty IFRA field does not mean it is unrestricted. A records system — paper or software — should make that distinction visible. Totals and checks that silently treat blanks as zero produce confidently wrong answers: a formula that looks cheap because its most expensive material has no price, or a formula that passes a safety check because the restricted material's limit was never entered. Report what is missing alongside what is calculated.

Some properties are worth measuring yourself rather than copying from a catalogue. How long a material stays detectable on a blotter, measured the same way every time, is one of the most useful; see measuring a material's tenacity on a blotter.

Organizing the library

Individual records are only half of it; the library needs structure — collections, consistent families, naming conventions and search — to stay usable at a few hundred materials. How to build a perfume ingredient database covers the structure, and fragrance families explained covers tagging by character.

An example of a complete record

Here is what a filled-in record looks like for one natural material. The supplier, codes and figures are illustrative; the point is the level of detail.

Every line of that record is something a formula, a costing, a safety check or a batch will eventually need. Recording it once, when the material arrives, is far cheaper than reconstructing it later.

Setting up records for an existing collection

If you already have shelves of materials and scattered notes, do not try to complete every field at once. A staged approach works:

1. List everything physically present, with a name, a new internal code on the bottle, and the supplier if known. Weigh each container while you are at it.
2. Add the fields formulas depend on: the dilution of each bottle, and the IFRA limits for materials you know to be restricted.
3. Add price per gram from invoices, noting the date.
4. Gather documents for the materials you use most, starting with SDSs and IFRA certificates.
5. Smell and describe each material in dilution, adding family and pyramid position.
6. From now on, complete the record on arrival for every new material.

Work through the most-used materials first. A complete record for the 50 materials in most of your formulas is worth more than a sparse one for 400. If your existing records are in spreadsheets, how to import and clean up existing formula and material data covers the cleanup.

The largest material in most perfumes is the alcohol, and it deserves a full record too — grade, denaturants, strength and supplier; see what perfumer's alcohol is.

Purchased compounds and bases

Fragrance oils, bases and specialties bought ready-made are materials too, but their composition is usually confidential. You cannot list their components, so their records depend on what the supplier discloses: the IFRA certificate (maximum use per category), the allergen statement, the SDS, and any declared restricted constituents. Record those carefully, because they are the only way your own calculations can account for what is inside. If you modify a purchased oil or blend it with others, its certificate no longer describes the result, and the compliance arithmetic falls to you.

Records earn their keep when something changes. When a material is restricted, discontinued or recalled, the first question is which formulas use it — including through premixes; see how to find every formula that uses a material.

Which fields at which stage

Moving up a row is easiest if the lower rows were done consistently from the start.

Common record-keeping failures

• One record for two products: a material reordered from a different supplier under the same name. Formulas silently change.
• Prices without dates: costings that cannot say when they were true.
• Documents in a general folder: nobody can tell which SDS belongs to which supplier's product.
• Dilutions as anonymous bottles: "Ambroxan 10%" with no date, solvent or link to the parent.
• Deleting discontinued materials: old formulas lose the meaning of their rows. Mark them discontinued instead.

How RUŌOD Lab records materials

In RUŌOD Lab, each material has fields for name, code, CAS number, botanical name, supplier, cost, inventory and unit, IFRA limit, date added, pyramid position, primary and secondary family, a description, the dilutions you keep, a picture, and fields you define yourself; materials are grouped in collections. A material can be flagged as a solvent so that it adds weight but no pure active to formula calculations. Its reports include one on material data quality — what is recorded and what is missing, per field and per collection — which is a practical way to find the gaps described above. You can see the materials library on the product page.

A checklist for each new material

• Specific name, internal code, and CAS number or botanical name.
• Supplier, product code, lot, date received, price per gram.
• SDS and specification filed; IFRA certificate and allergen statement where relevant.
• IFRA limits recorded for the categories you make; restricted constituents noted for naturals.
• Smelled and described, in dilution, with family and typical pyramid position.
• Dilutions made, labeled and recorded.
• Quantity, location and storage conditions recorded; a review date set.

Frequently asked questions

Do I need a CAS number for every material?

For single chemicals, it is the most reliable identifier and worth recording. For natural extracts and blends, a CAS number (where one exists) identifies a general type of material rather than your specific product, so the supplier and product code matter more.

How detailed should odor descriptions be?

Detailed enough that you could pick the material out from similar ones by reading the note. Describe it in dilution and at more than one time point.

Should dilutions have their own records?

Treat each dilution as a stock item linked to its parent material, with its own strength, solvent, date and quantity. See how to dilute aroma chemicals.

What is the difference between a specification and a certificate of analysis?

The specification describes what every lot of the product should be, with acceptable ranges. The certificate of analysis reports what one lot was actually measured to be. You compare the second against the first.

Should I record materials I only have as small samples?

Yes, if you might formulate with them. Mark them as samples, with the supplier and date, so a trial that uses one can be traced, and so you know to order the full product — and request its documents — before using it in anything you sell.