Fragrance comparison

Cosmology vs Oslo

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

Updated 15 Nov 2026 33 ratings analysed

5 wins

Cosmology

Testament London

4.0521 votes

Rank #26,634 SweetVanilla

Full profile Similar & dupes

31%scent match

Clearly different

Oslo

Thera Cosméticos

3.4212 votes

Rank #66,986 FruitySweet

Full profile Similar & dupes

Quick verdict

Which one should you pick?

Cosmology takes 5 of 5 categories.

Cosmology
Choose it for a sweet and vanilla character. Wins on ratings & consensus, longevity and sillage & projection. Best in winter, evening wear.
Oslo
Choose it for a fruity and sweet character. Best in fall, daytime wear.

Cosmology5/5

Oslo0/5

Ratings & consensus: Cosmology
Community sentiment: Not scored
Longevity: Cosmology
Sillage & projection: Cosmology
Value for money: Cosmology
Versatility: Not scored
Note pyramid (duration): Not scored
Fragranxe ranking: Cosmology

Head-to-head breakdown

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

Fragrance

CosmologyTestament London

OsloThera Cosméticos

Winner

Ratings & consensus

Average rating and ownership split

4.05/ 5 · 21 votes

Have 19%Had 10%Want 71%

3.42/ 5 · 12 votes

Have 44%Had 22%Want 33%

Category winnerCosmologyRating weighted by vote count

Community sentiment

How voters split from love to hate

57%Love

19%Like

5%Ok

10%Dislike

10%Hate

21 votes · too few to score

25%Love

33%Like

8%Ok

25%Dislike

8%Hate

12 votes · too few to score

Category winnerNot enough dataMost positive mix (25+ votes)

Longevity & sillage

0–100 community performance scores

⏱ Longevity75

〰 Sillage73

♥ Love / hate76

⏱ Longevity53

〰 Sillage42

♥ Love / hate60

Category winners

LongevityCosmology

SillageCosmology

Value for money

How fairly priced voters find it

¤ Price value54

¤ Price value38

Category winnerCosmologyBest value score

Main accords

Strength of each scent family · outlined = shared by both

sweet100%

vanilla92%

white floral84%

fruity77%

animalic69%

musky61%

fruity100%

sweet92%

lavender84%

citrus77%

anis69%

aromatic61%

Scent match31%Clearly different · both sweet and fruity

Note pyramid (duration)

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

Top

PlumAniseRoseRaspberryChamomile

Heart

TuberoseLily-of-the-ValleyHeliotropeJasmineClovesYlang-Ylang

Base

Tonka BeanAnimal notesCoconutMuskVanillaMoss

Top

GrapefruitAnise

Heart

RaspberryLavender

Base

Woodsy NotesHeliotrope

InformationalShared notesAnise, Raspberry and Heliotrope. Note durations are not published for these fragrances, so this is not scored.

Seasons & time of day

Relative to each fragrance's best season

Spring40

Summer40

Fall73

Winter100

Day50

Night100

Spring86

Summer71

Fall100

Winter71

Day100

Night80

Category winnerNot enough dataMost year-round

Who wears it

Gender appeal votes

Men21

Unisex58

Women21

Men75

Unisex25

Women0

InformationalProfile onlyAudience is not scored

Ranking & credits

Fragranxe overall rank, nose and launch

Overall rank#26,634

PerfumerMiguel Matos

Launched—

Reviews4

Overall rank#66,986

PerfumerMário Torri Neto

Launched—

Reviews0

Category winnerCosmologyHigher overall rank

In a nutshell

Description & review snapshot

Cosmology by Testament London offers a dense blend of dark plum and heavy white florals. Designed by perfumer Miguel Matos, this scent wraps ripe, sweet fruits around a thick, animalic base. It is a bold option for cool evening wear when you want a rich, fruity floral that projects off the skin with serious weight.

Reviews →

Oslo by Thera Cosméticos opens with a sharp burst of tart grapefruit alongside a licorice-tinted anise note. As the initial citrus fizz settles, a sweet core of ripe raspberry and herbal lavender takes over, giving the composition an energetic fruity-aromatic balance. The base quietens into soft heliotrope and dry woo…

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.

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Common questions

Straight answers from the data above.

Which is better, Cosmology or Oslo?

Cosmology takes 5 of 5 categories. Cosmology is rated 4.05/5 from 21 votes; Oslo is rated 3.42/5 from 12 votes. Choose Cosmology for a sweet and vanilla character. Wins on ratings & consensus, longevity and sillage & projection. Best in winter, evening wear. Choose Oslo for a fruity and sweet character. Best in fall, daytime wear.

Which lasts longer, Cosmology or Oslo?

Cosmology lasts longest (Cosmology 75/100, Oslo 53/100), based on community performance votes.

Which projects more, Cosmology or Oslo?

Cosmology projects furthest (Cosmology 73/100, Oslo 42/100), based on community performance votes.

Do Cosmology and Oslo smell similar?

Clearly different: a 31% scent match on Fragranxe. Both share sweet and fruity accords. Common notes include Anise, Raspberry and Heliotrope.

Is Cosmology or Oslo better for summer or winter?

Cosmology suits evening wear; Oslo suits daytime wear. Based on community season votes.

What are the notes in Cosmology and Oslo?

Cosmology has top notes of Plum, Anise, Rose and Raspberry, heart notes of Tuberose, Lily-of-the-Valley, Heliotrope and Jasmine, a base of Tonka Bean, Animal notes, Coconut and Musk. Oslo has top notes of Grapefruit and Anise, heart notes of Raspberry and Lavender, a base of Woodsy Notes and Heliotrope.