Reference
Discontinued and restricted materials
The single most common question at the bench: this material is gone or limited, what do I use now?
Materials get restricted or pulled for allergen, toxicity, or sustainability reasons, and a formula that worked last year can suddenly be off the table. This is a working reference for the best-known cases, with honest notes on what perfumers reach for instead. A substitute is never a perfect copy: it gets you close, and the bench decides the rest.
Lilial (Butylphenyl Methylpropional, BMHCA)
Banned in the EU
CAS 80-54-6
Muguet / lily floral
A workhorse lily-of-the-valley floralizer, classified as a reproductive toxicant and banned from EU cosmetics from March 2022. It is being designed out of formulas worldwide.
What perfumers reach forThere is no perfect drop-in. Perfumers approximate its airy muguet lift with a blend: Florhydral for the green-aldehydic top, Cyclamen Aldehyde for the watery petal, and Mahonial or Lilybelle for the body. Florol and Florosa (Floralozone) fill the fresh-floral space.
Lyral (HICC, Hydroxyisohexyl 3-Cyclohexene Carboxaldehyde)
Banned in the EU
CAS 31906-04-4
Muguet / floral
A hugely popular muguet material restricted, then banned in the EU as a strong contact allergen, with the phase-out completed in 2021.
What perfumers reach forIFF created Nympheal as a direct olfactive successor. Mahonial, Lilybelle and Florhydral are the common building blocks for rebuilding a Lyral-style muguet, with Helional adding the marine-floral edge.
Oakmoss absolute (Evernia prunastri)
Restricted by IFRA
the chypre cornerstone
Mossy / chypre base
The dark, inky heart of a classic chypre. Restricted, not banned, because of the allergens atranol and chloroatranol. Standard practice now is low-atranol grades used within the IFRA limit.
What perfumers reach forLow-atranol oakmoss grades keep the real material in play at reduced levels. Evernyl (Veramoss, methyl atrarate) carries the dry mossy facet synthetically, and Orcinyl 3 or a measured tree-moss touch round out a modern chypre base.
Musk Ambrette
Prohibited by IFRA
a nitro musk
Musk
A sweet, powdery nitro musk prohibited long ago over phototoxicity and neurotoxicity concerns. It is effectively gone from professional work.
What perfumers reach forModern musks cover the ground cleanly: Ethylene Brassylate and Ambrettolide for the sweet macrocyclic warmth, Habanolide and Muscenone for a soft skin-musk, Galaxolide where a laundry-clean musk is wanted (mind its own environmental scrutiny).
Hydroxycitronellal
Restricted by IFRA
CAS 107-75-5
Muguet / floral
A classic sweet muguet material, still usable but capped at low levels as a recognized allergen, so it rarely carries a formula on its own any more.
What perfumers reach forWithin its limit it is still useful. To go further, lean on Mahonial, Florhydral and Cyclamen Aldehyde for the muguet sweetness and a cleaner allergen profile.
Musk Xylene and Musk Ketone (nitro musks)
Restricted / phased out
the old nitro musks
Musk
The first synthetic musks. Musk Xylene is an SVHC and effectively withdrawn; Musk Ketone survives only under tight restriction. Both are avoided in new work.
What perfumers reach forThe polycyclic and macrocyclic musks replace them: Galaxolide for diffusion (mind its own environmental scrutiny), and the cleaner macrocyclics Ethylene Brassylate, Habanolide, Exaltolide and Muscenone for a rounder, skin-close musk.
Methyl Heptine Carbonate (MHC)
Restricted by IFRA
CAS 111-12-6
Green / violet leaf
An intense green, violet-leaf, cut-stem note capped at very low levels as an allergen, so a heavy violet-leaf accord built on it is no longer practical.
What perfumers reach forUse it at trace within the limit, and build the green with Triplal (Ligustral), cis-3-Hexenol and Violet Leaf Absolute, with a little Methyl Octine Carbonate (also limited) for the metallic top.
This page is a starting point, not regulatory advice. Restriction levels and dates change as IFRA amendments and regional rules update, so confirm a material's current status against the latest IFRA standard and your own market's rules before you rely on it. The substitutes are olfactive starting points; their own limits and your formula's context still apply.