IFRA Formula Worksheet

Calculate each material’s finished-product percentage and compare it with a documented limit you enter. Check documents and restrictions separately.

Read the guide and worked example · Download a blank CSV

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How to use this worksheet

  1. Use one row per fragrance material. Enter every share of the fragrance blend so the rows total 100%. Percentages are by mass.
  2. Enter the same total fragrance percentage on every row, using the complete finished product as the denominator. For 60 g fragrance plus 940 g base, enter 6.
  3. Record the supplier document and intended-use category supporting the entered limit. Fragrance mixtures and raw oils need different documents; read the linked guide. Leave an uncertain limit blank.
  4. Read the calculated percentage and flag alongside the source document. Save the worksheet even if it is unfinished. The checker cannot total shared restricted constituents or establish conformity.

When to pause

Pause when a document, category, limit, or composition is uncertain, the blend does not total 100%, rows use different total fragrance loads, or a calculated percentage exceeds the entered limit. A passing row is only an arithmetic comparison.

Completed example

The three materials, supplier references, category descriptions, and limits below are fictional arithmetic inputs. They are not a usable formula, IFRA category selection, or supplier limits.

Material *Supplier and lot *Supplier document and date *Category selected by user *Percent of fragrance blend *Total fragrance load (%) *Material in finished product (%)Entered finished-product limit (%) *Arithmetic comparison
Hypothetical material AFictional supplier AFictional applicable document / example dateExample only; select actual use from current documents50634Within entered limit
Hypothetical material BFictional supplier BFictional applicable document / example dateExample only; select actual use from current documents3061.82Within entered limit
Hypothetical material CFictional supplier CFictional applicable document / example dateExample only; select actual use from current documents2061.21Exceeds entered limit

Using the IFRA Standards

International Fragrance Association · Read the IFRA guidance

Published or revised
Not stated on the checked page
Date checked
2026-10-13
Relevant sections
Certificate of Conformity, raw materials, upper concentrations and natural complex substances
Supports
Supplier declarations concern a specified intended use. Finished-product limits and restricted constituents need consideration; a certificate does not replace a safety assessment.
Does not establish
That IFRA issued a certificate, that every raw oil needs one, or that separate ingredient calculations approve a finished product.

Your worksheet

Fields marked * are needed for the entry check. You can export an unfinished worksheet; missing answers stay visible. The check confirms fields and arithmetic, not product safety or approval.

Entries have not been checked.

Blend total: 0% — must equal 100%

Material *Supplier and lot *Supplier document and date *Category selected by user *Percent of fragrance blend *Total fragrance load (%) *Material in finished product (%)Entered finished-product limit (%) *Arithmetic comparisonRow controls
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