Keep using the 51st Amendment
Until the 52nd applies, formulas are checked against the 51st. Nothing in the consultation is a limit you have to meet today.
The 52nd Amendment is the next update to the IFRA Standards. Its consultation ran from 12 December 2025 to 12 June 2026 and IFRA published its end of consultation letter on 1 September 2026; the formal notification is expected in January 2027. Until it applies, the 51st Amendment remains the one in use.
The amendment in use today.
The package included updated guidance for using the Standards, the full set of individual Standards referenced, and an annex on presence in natural ingredients and Schiff bases.
Comments from stakeholders were collected until this date.
IFRA published the letter that closes the consultation and sets the timing.
IFRA says the notification is expected in January 2027, likely in the second or third week.
New creations must meet the 52nd Amendment Standards 11 months after the notification.
Existing creations get a further 30 months. IFRA notes the preparatory phase is two months longer than under the 51st Amendment.
IFRA's public pages describe the consultation package: updated guidance for using the Standards, including the procedure for the 52nd Amendment, the full set of individual Standards referenced in the consultation letter, and an annex compiling information on presence in natural ingredients and Schiff bases.
The individual Standards themselves were shared with stakeholders for consultation, and they stay drafts until the notification. We therefore do not list which materials change or by how much. When IFRA notifies the amendment, this page will say what it contains, with the date.
Until the 52nd applies, formulas are checked against the 51st. Nothing in the consultation is a limit you have to meet today.
Certificates name the amendment they were issued under. Expect new ones after the notification.
The individual Standards in the consultation are drafts until notification. Wait for the notified text before changing a formula for sale.
IFRA expects to notify it in January 2027. New creations must comply 11 months after the notification, and existing creations a further 30 months after that.
Not yet as notified Standards. The consultation ran from 12 December 2025 to 12 June 2026 and IFRA published the end of consultation letter on 1 September 2026. The notification is expected in January 2027.
The 51st Amendment, notified on 30 June 2023.
Not yet. The Scent Lab checks formulas against IFRA Amendment 51, the one in use. Its check is guidance for design, and responsibility for a commercial product rests with the manufacturer.
The Scent Lab in Fragnatique checks every formula against IFRA Amendment 51 today. Start with what the IFRA Standards are, or read how a formula is judged on our methodology page.