40 Knots
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- Authentic original perfume
- Try before the full bottle
- Travel-ready 3ml, 10ml, 30ml
- Long-lasting scent
40 Knots by Xerjoff plays its character down rather than spelling it out note by note: cool, clean and faintly salty, with a dry, woody undertone that never turns sweet. It reads understated rather than showy, built for someone who wants a scent that feels put together without announcing itself. It is unisex, and suits anyone who prefers restraint over volume. Voters keep it for autumn and winter, wearing it through the evening as often as during the day. The vote is clear on both counts: most wearers find it long-lasting, and sillage reaches strong too. Give it a 3ml decant across a few cool weeks before deciding on the bottle.
10ML independently rebottles authentic Xerjoff fragrances purchased through authorized European retailers into 10ML-branded sample atomizers. 10ML is not affiliated with, endorsed by, or sponsored by Xerjoff. The retail bottle shown is for fragrance identification only and is not included with purchase.
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Selling out fast
Due to high demand, quantities are limited.
30-day money-back guarantee
Try it worry-free. If the scent isn’t for you, tell us within 30 days and we’ll refund your order.*
50,000+ scent lovers and counting
The community verdict
Long-lasting on skin with strong projection for most, 40 Knots has a noticeable presence. Autumn evenings are its best fit, while winter and daytime work too. Its strong projection makes it a fitting choice for someone who prefers a scent that does not go unnoticed.
Summarised with AI from perfume-community reviews
- Brand
- Xerjoff
- Scent profile
- Unisex
- Decant sizes
- 3ml, 10ml, 30ml
We ship across the EU. Orders over €75.00 ship free. Returns are accepted within 30 days of delivery.
Xerjoff 40 Knots, hour by hour
How it opens, settles and lingers on skin.
What wearers say
Votes from fragrance communities, most-voted answers first.
Longevity268 votes
Most voted: 55%Long lasting
21%Moderate
Sillage235 votes
Most voted: 57%Strong
25%Moderate
Season227 votes
Most voted: 37%Autumn
35%Winter
Time of day203 votes
Most voted: 39%Evening
25%Daytime
See all votesHide votes
Longevity268 votes
- Very weak2%5 votes
- Weak7%18 votes
- Moderate21%55 votes
- Long lasting (Most voted)55%148 votes
- Eternal16%42 votes
Sillage235 votes
- Intimate6%14 votes
- Moderate25%58 votes
- Strong (Most voted)57%135 votes
- Enormous12%28 votes
Season227 votes
- Spring18%40 votes
- Summer10%22 votes
- Autumn (Most voted)37%85 votes
- Winter35%80 votes
Time of day203 votes
- Daytime25%50 votes
- Office14%28 votes
- Evening (Most voted)39%80 votes
- Night out22%45 votes
Which size is right for you?
Every size is decanted from the same original bottle.
At 3 sprays a day.
Loved by 50,000+
Why scent lovers try it with us before they buy the bottle.
Hand-decanted from the original bottle
Decanted by hand from authentic bottles, never diluted.
Wear it for days before you commit
Live with it at work, at night and at the weekend before you buy a full bottle.
Just like the full bottle
A fine-mist atomiser sprays like the original, so it opens, projects and lasts on your skin the way the full bottle does.
10ML vs a blind buy
What a decant gives you that a bottle bought unsmelled can’t.
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The house
More from Xerjoff
Xerjoff is a Turin house, started in 2007 by Sergio Momo to make perfume with the richness of Italian design: dense, golden and unashamedly sweet. Most of the range sits in warm territory, with vanilla, amber and tonka bean underneath and saffron, cinnamon or cardamom for heat. A bright streak of bergamot keeps several of them from feeling heavy. Begin with XJ 1861 Naxos, where lavender meets honey over a sweet vanilla base. Erba Pura is the sunny one, a juicy fruit-and-citrus blend, and Lira turns citrus into something close to caramel. For a greener side of the house, try Torino21, fresh with aromatic herbs. Alexandria II shows the darker, woodier face, all amber and powder. Wear a few side by side and you will soon find which Xerjoff mood is yours.
Frequently asked questions
Is Xerjoff 40 Knots long lasting?
Shoppers on fragrance communities most often rate its longevity as long lasting (55% of votes), and 71% rate it long lasting or eternal. They most often rate its sillage as strong (57% of votes). How long it lasts on you also depends on your skin and how much you apply.
Is Xerjoff 40 Knots good for summer?
Shoppers on fragrance communities rate it mainly for autumn and winter; summer takes only 10% of season votes.
Is Xerjoff 40 Knots good for winter?
Shoppers on fragrance communities rate it well for winter: winter takes 35% of season votes, close behind its most-voted season.
Is Xerjoff 40 Knots for day or night?
Shoppers on fragrance communities mostly wear it after dark: 62% of time-of-day votes are for evenings and nights out, 38% for daytime or the office.
Can I wear Xerjoff 40 Knots to the office?
Shoppers on fragrance communities rarely pick it for the office: only 14% of time-of-day votes go to the office.
Who makes Xerjoff 40 Knots?
40 Knots is made by Xerjoff.
How many wears is a 10ml decant of Xerjoff 40 Knots?
A 10ml decant of Xerjoff 40 Knots holds about 200 sprays, roughly 67 days of wear at 3 sprays a day. The 3ml decant holds about 60 sprays, around 20 days. The 30ml decant holds about 600 sprays, around 200 days.
Which other Xerjoff perfumes can I try?
Besides Xerjoff 40 Knots, 10ML has XJ 1861 Naxos, Lira and Erba Pura from Xerjoff, each decanted from the original bottle.
Is this Xerjoff 40 Knots decant the original perfume?
Yes. Every Xerjoff 40 Knots decant is filled by hand from an original Xerjoff bottle, with nothing added or diluted, so it opens, dries down and lasts on your skin the way the bottle does. We sell only authentic originals.
What is a decant?
A small amount of a perfume, taken from its original bottle and put into a travel atomiser. You get the real fragrance in a size that lets you live with it for days before you decide on the full bottle.
How does the money-back guarantee work?
If a scent isn’t right for you, get in touch within 30 days of it arriving and we’ll arrange a refund. Terms apply. See our refund policy.