Fragrance comparison

Gentleman N. 17 vs Pro-Energy Blue Cobalt

Notes, accords, longevity, sillage, seasons and community ratings, side by side.

Updated 22 Oct 2026 7 ratings analysed

Gentleman N. 17

Parfums Constantine

3.836 votes

Rank #60,658 CitrusFresh Spicy

Full profile Similar & dupes

94%scent match

Very similar

Pro-Energy Blue Cobalt

Red Label

1.001 votes

Rank #71,053 AromaticFresh Spicy

Full profile Similar & dupes

Quick verdict

Which one should you pick?

No clear winner: the 4 categories split 2–2.

Gentleman N. 17
Choose it for a citrus and fresh spicy character. Wins on value for money and fragranxe ranking. Best in summer, daytime wear.
Pro-Energy Blue Cobalt
Choose it for a aromatic and fresh spicy character. Wins on longevity and sillage & projection. Best in spring, day or night wear.

Gentleman N. 172/4

Pro-Energy Blue Cobalt2/4

Ratings & consensus: Not scored
Community sentiment: Not scored
Longevity: Pro-Energy Blue Cobalt
Sillage & projection: Pro-Energy Blue Cobalt
Value for money: Gentleman N. 17
Versatility: Not scored
Note pyramid (duration): Not scored
Fragranxe ranking: Gentleman N. 17

Head-to-head breakdown

Every category side by side, with the winner called out.

Fragrance

Gentleman N. 17Parfums Constantine

Pro-Energy Blue CobaltRed Label

Winner

Ratings & consensus

Average rating and ownership split

3.83/ 5 · 6 votes

Have 55%Had 0%Want 45%

1.00/ 5 · 1 votes

Category winnerNot enough dataRating weighted by vote count

Community sentiment

How voters split from love to hate

17%Love

50%Like

33%Ok

0%Dislike

0%Hate

6 votes · too few to score

0%Love

0%Like

0%Ok

0%Dislike

100%Hate

1 vote · too few to score

Category winnerNot enough dataMost positive mix (25+ votes)

Longevity & sillage

0–100 community performance scores

⏱ Longevity50

〰 Sillage42

♥ Love / hate71

⏱ Longevity80

〰 Sillage50

♥ Love / hate0

Category winners

LongevityPro-Energy Blue Cobalt

SillagePro-Energy Blue Cobalt

Value for money

How fairly priced voters find it

¤ Price value67

¤ Price value50

Category winnerGentleman N. 17Best value score

Main accords

Strength of each scent family · outlined = shared by both

citrus100%

fresh spicy88%

aromatic77%

woody65%

warm spicy53%

lavender42%

aromatic100%

fresh spicy90%

warm spicy80%

citrus70%

woody60%

lavender50%

Scent match94%Very similar · both fresh spicy, aromatic and citrus

Note pyramid (duration)

Top, heart and base, with how long each lasts when known · gold = shared

Top15-30 mins

GrapefruitBergamot

Heart2-3 hrs

PepperLavenderDavanaCardamom

Base5-7 hrs

CedarVetiverOlibanum

Top

BergamotGrapefruit

Heart

LavenderCardamomPepper

Base

OlibanumVetiverCedar

InformationalShared notesGrapefruit, Bergamot, Pepper and Lavender. Durations are only published for Gentleman N. 17, so this is not scored.

Seasons & time of day

Relative to each fragrance's best season

Spring80

Summer100

Fall40

Winter20

Day100

Night32

Spring100

Summer100

Fall100

Winter100

Day100

Night100

Category winnerNot enough dataMost year-round

Who wears it

Gender appeal votes

Men100

Unisex0

Women0

Casual 38%Work 35%Date 17%Party 10%

Men100

Unisex0

Women0

InformationalProfile onlyAudience is not scored

Ranking & credits

Fragranxe overall rank, nose and launch

Overall rank#60,658

PerfumerNot listed

Launched—

Reviews0

Overall rank#71,053

PerfumerNot listed

Launched—

Reviews0

Category winnerGentleman N. 17Higher overall rank

In a nutshell

Description & review snapshot

Parfums Constantine Gentleman N. 17 opens with an immediate snap of sharp grapefruit and bright bergamot. That initial citrus sparkle quickly meets a brisk wave of black pepper and clean lavender. As the fragrance warms on skin, herbal davana adds a subtle, tea-like sweetness while crushed cardamom introduces dry warm…

Reviews →

Pro-Energy Blue Cobalt reads as a clean woody spicy scent with a classic blue-leaning structure. The opening looks bright and citrusy from bergamot and grapefruit, then shifts into lavender, cardamom, and pepper before settling into cedar, vetiver, and a light resinous smokiness from olibanum. It may suit men who like…

Reviews →

InformationalRead bothTaste is personal

How we score: ratings blend public fragrance ratings with Fragranxe member votes; longevity, sillage, value and sentiment are community vote scores, and season bars are relative to each fragrance's strongest season. Categories with too little data are shown but not scored. The scent match weighs accord overlap (60%) and shared notes (40%). More in the FAQ.

Common questions

Straight answers from the data above.

Which is better, Gentleman N. 17 or Pro-Energy Blue Cobalt?

No clear winner: the 4 categories split 2–2. Gentleman N. 17 is rated 3.83/5 from 6 votes; Pro-Energy Blue Cobalt is rated 1.00/5 from 1 votes. Choose Gentleman N. 17 for a citrus and fresh spicy character. Wins on value for money and fragranxe ranking. Best in summer, daytime wear. Choose Pro-Energy Blue Cobalt for a aromatic and fresh spicy character. Wins on longevity and sillage & projection. Best in spring, day or night wear.

Which lasts longer, Gentleman N. 17 or Pro-Energy Blue Cobalt?

Pro-Energy Blue Cobalt lasts longest (Pro-Energy Blue Cobalt 80/100, Gentleman N. 17 50/100), based on community performance votes.

Which projects more, Gentleman N. 17 or Pro-Energy Blue Cobalt?

Pro-Energy Blue Cobalt projects furthest (Pro-Energy Blue Cobalt 50/100, Gentleman N. 17 42/100), based on community performance votes.

Do Gentleman N. 17 and Pro-Energy Blue Cobalt smell similar?

Very similar: a 94% scent match on Fragranxe. Both share fresh spicy, aromatic and citrus accords. Common notes include Grapefruit, Bergamot, Pepper and Lavender.

Is Gentleman N. 17 or Pro-Energy Blue Cobalt better for summer or winter?

Gentleman N. 17 suits daytime wear; Pro-Energy Blue Cobalt suits day or night wear. Based on community season votes.

What are the notes in Gentleman N. 17 and Pro-Energy Blue Cobalt?

Gentleman N. 17 has top notes of Grapefruit and Bergamot, heart notes of Pepper, Lavender, Davana and Cardamom, a base of Cedar, Vetiver and Olibanum. Pro-Energy Blue Cobalt has top notes of Bergamot and Grapefruit, heart notes of Lavender, Cardamom and Pepper, a base of Olibanum, Vetiver and Cedar.