Xerjoff is the seventh-largest revenue brand at Scento and one of the most architecturally distinctive niche houses on the market — known for ornate bottle designs (Casamorati's baroque flacon, Shooting Stars' gold-trimmed clear glass, Oud Stars' hand-blown decanters) and high-concentration formulations that wear with a generosity unusual for niche. The brand is opaque about batch coding: production is handled in-house at the Xerjoff facility in Turin, Italy, with internal lot-tracking that the brand does not document publicly. There is no public algorithm, no Basenotes thread with a confirmed mapping, and the customer-service portal does not surface decoder information.
What we have is 1,547 authenticated Xerjoff bottles in our intake database since 2021 and the format-pattern observations from those bottles. The decoder marks every Xerjoff result as ESTIMATED. For a confirmed production date, Xerjoff customer service in Turin will provide one over email if you submit the underside-bottle code along with the original receipt; turnaround is usually 7–14 business days.
Why no public algorithm
Xerjoff was founded in 2003 in Turin by Sergio Momo as an artisan-luxury house with explicit positioning outside the mainstream luxury distribution model. Production is fully in-house at the Turin facility — Xerjoff is one of the few niche houses that runs its own bottling line — and the codes printed on bottles are internal lot identifiers used for warehouse and quality-control tracking rather than consumer-facing date metadata.
Our format-pattern observations across the 1,547 authenticated bottles suggest a 6-character laser etch on the underside of the bottle, predominantly numeric (most common: 6 digits) with a small minority of alphanumeric variants on certain limited editions and the Oud Stars line. The first 2 characters appear to encode a year-related value; the next 2 appear to encode a month or week; and the last 2 are an internal lot identifier. The year-related encoding uses a non-trivial transformation we have not been able to reverse-engineer with confidence.
What we can say with confidence: the laser etch should be sharp sans-serif with characteristically tight kerning (the characters appear slightly closer together than standard sans-serif spacing would dictate). This kerning is an unusual feature of Xerjoff's etching process and is one of the most reliable physical authentication signals.
Where the code lives on a Xerjoff bottle
Three placements, with the underside bottle etch being the primary reference:
- Underside laser etch — sans-serif, 6 characters, tight kerning. Should be sharp and flush with the glass. Smudge, blur, shallow etching, or standard kerning are flags.
- Carton foil stamp — gold or copper foil-stamped on the bottom flap of the outer carton. The foil tone should match the bottle's metal accents (gold for Shooting Stars, copper for some Casamorati, silver for some Aria special editions).
- Wood-box certificate (special editions only) — Shooting Stars special runs, Casamorati La Tosca, the entire Oud Stars line, and the limited-edition collaborations all ship in a wood box with an internal certificate of authenticity. The certificate carries an additional code that should match the bottle and carton. Wood boxes without certificates are flagged at intake.
The 12-point intake check
Because the decoder cannot give HIGH-confidence dates on Xerjoff, physical authentication is the primary work. Our 12-point intake check covers the standard signals from the methodology page, with Xerjoff-specific emphasis on:
- Etch kerning test. Examine the underside etch under magnification (10x loupe minimum). Genuine Xerjoff uses tight kerning; counterfeits use standard spacing that looks "spread out" once you've handled real bottles for comparison.
- Bottle weight. Xerjoff uses a specific Italian crystal on the standard 100ml flacon; the calibrated reference is part of our intake database. Counterfeits run 15–25g light.
- Cap engraving — Xerjoff "X" or Casamorati crest. Should be deeply etched and feel sharp under a fingernail. Flat surface printing is a flag.
- Wood-box weight (special editions). Genuine Casamorati and Oud Stars wood boxes use solid walnut or rosewood; counterfeits use MDF veneer that's noticeably lighter on a calibrated scale.
- Certificate paper grain. Genuine Xerjoff certificates use a specific cream cotton-blend paper with a subtle grain; counterfeits use smoother bleached stock.
We've rejected 84 Xerjoff bottles since 2021, roughly 5.4% rejection rate. The rate is consistent across the line — Naxos, Erba Pura, Alexandria II, and the Casamorati range all run roughly the same counterfeit-attempt frequency.
Counterfeit stories
The four rejection stories in the frontmatter give a representative sense of what we see at intake. The kerning test on the 2022 Naxos batch is particularly instructive: 13 bottles caught by a single visual signal (etch kerning) that wouldn't have been obvious without side-by-side comparison against authenticated bottles. Counterfeit operators have improved on the bottle shape, the juice imitation, and the carton printing, but they have not figured out how to match Xerjoff's etching machine settings — the kerning is the consistent giveaway.
The 2024 Casamorati La Tosca batch (4 bottles, MDF veneer wood box) is also worth noting because it shows how the special-edition format provides additional authentication signal. A counterfeit operator can produce a passable bottle and a plausible carton, but reproducing the solid-walnut wood box of the Casamorati line is significantly harder — the weight and the grain pattern of solid walnut are difficult to imitate at counterfeit margins.
What to do if your code returns ESTIMATED
- Source from authenticated stock. Our Xerjoff collection carries decants of Naxos, Erba Pura, Alexandria II, Coro, Casamorati La Tosca, Casamorati Mefisto, and the rest of the active Xerjoff and Casamorati lines, authenticated using the 12-point check.
- Contact Xerjoff customer service. Email [email protected] with the underside-bottle code and your original receipt. The Turin team confirms production dates over email; turnaround is 7–14 business days.
- Read the methodology page for the full explanation of why Xerjoff is marked as ESTIMATED.
A note on the Xerjoff sub-lines
Xerjoff operates several sub-lines that all use the same batch-code scheme:
- Standard Xerjoff (XJ) — the original line, including the Shooting Stars collection (Naxos, Erba Pura, Alexandria II, Coro, etc).
- Casamorati — the baroque-bottled sub-line, designed to evoke 19th-century Italian perfumery (La Tosca, Mefisto, Bouquet Ideale, Italica, etc).
- Oud Stars — the oud-focused sub-line in hand-blown decanters (Mamluk, Malesia, Zafar, etc).
- Aria — the contemporary lighter sub-line.
- Join the Club — the lifestyle sub-line.
All five use the same underside-etch format and our format-pattern estimate applies identically. The decoder uses a single brand entry for Xerjoff that covers all sub-lines; the decoded date applies regardless of which collection the bottle belongs to. Bottle weight, cap engraving, and packaging signals are sub-line specific (Casamorati's wood box vs Aria's standard carton, for instance), and the 12-point check is calibrated per sub-line.