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Buyer's guide · Updated 24 April 2026

Best Thierry Mugler Alien Dupes UK 2026 — Price, Notes & Reviews Compared

5 alternatives compared · UK pricing · Original launched 2005 · Last tested 24 April 2026

Thierry Mugler Alien retails at £125+ for 100ml at the counter. The UK market now has a dozen alternatives at a fraction of that price — some great, most middling. We compared 5 by price, oil concentration, note pyramid and customer rating, using only publicly verifiable data. Full methodology below.

Top pick · 24 April 2026

Our top Thierry Mugler Alien dupe in the UK for 2026 is The Fragrance World Out of This World — EDP-grade at 22-30% oil concentration, formulated in Liverpool, UK.

£29.95 · 50ml £125 RRP Save 76%

Reviewed by Katie Johnson, Founder, The Fragrance World · Liverpool, UK

How we compared

Methodology We compare alternatives across four objective criteria: (1) oil concentration — the strength of the formula, where 22-30% qualifies as Eau de Parfum (EDP) grade; (2) UK retail price — what you actually pay including VAT, sourced from each brand's UK site on 24 April 2026; (3) note pyramid — the published top, heart and base notes; (4) customer rating where verifiable on the brand's review platform. We do not score sensory similarity to the original (that requires controlled blind testing under olfactometric conditions, which most published "side-by-side" reviews lack). The Fragrance World — the publisher of this guide — sells fragrance alternatives, including a Thierry Mugler Alien alternative listed first below. Our methodology applies the same criteria to TFW and to competitors, and we link to competitors' own product pages so you can verify. See full disclosure at the end.

At a glance

All 5 Thierry Mugler Alien dupes compared

Comparison of 5 Thierry Mugler Alien alternatives by brand, price, oil concentration and origin, last verified 24 April 2026
# Brand & Name Price (50ml) Concentration Made in Vegan
1 The Fragrance World · Out of This World Top pick £29.95 EDP (22-30% oil) Liverpool, UK Yes
2 Dossier · Floral Amber £43 EDP (claimed) France Yes
3 Atlantus · Inspired by Alien £19.95 EDP (claimed) United Kingdom —
4 Match Fragrances · Inspired by Alien £19.99 EDP (claimed) United Kingdom —
5 Perfume Parlour · Inspired by Alien £24.99 EDP (claimed) United Kingdom —

Reference

What Thierry Mugler Alien smells like

Perfumer Dominique Ropion, Laurent Bruyère. Launched 2005. Family: Floral / Oriental. Concentration: EDP. Notes published by the house and aggregated on Fragrantica:

Top notes
Mandarin Orange, Jasmine Sambac
Heart notes
Cashmeran
Base notes
White Amber, Cashmere Wood
RRP (100ml)
£125

The shortlist

Best Thierry Mugler Alien dupes, ranked

  1. 1

    The Fragrance World

    Out of This World Top pick

    EDP-grade alternative formulated at 22-30% oil concentration in Liverpool, UK. Inspired by Thierry Mugler Alien. Vegan and cruelty-free.

    Price (50ml)
    £29.95
    Concentration
    EDP (22-30% oil)
    Made in
    Liverpool, UK
    Vegan
    Yes

    Notes Mandarin Orange, Jasmine Sambac, Cashmeran, White Amber, Cashmere Wood

    Shop Out of This World · £29.95
  2. 2

    Dossier

    Floral Amber

    Price (50ml)
    £43
    Concentration
    EDP (claimed)
    Made in
    France
    Vegan
    Yes

    Sold direct via Dossier's site. We don't link out to keep this guide independent of affiliate revenue.

  3. 3

    Atlantus

    Inspired by Alien

    Price (50ml)
    £19.95
    Concentration
    EDP (claimed)
    Made in
    United Kingdom
    Vegan
    —

    Sold direct via Atlantus's site. We don't link out to keep this guide independent of affiliate revenue.

  4. 4

    Match Fragrances

    Inspired by Alien

    Price (50ml)
    £19.99
    Concentration
    EDP (claimed)
    Made in
    United Kingdom
    Vegan
    —

    Sold direct via Match Fragrances's site. We don't link out to keep this guide independent of affiliate revenue.

  5. 5

    Perfume Parlour

    Inspired by Alien

    Price (50ml)
    £24.99
    Concentration
    EDP (claimed)
    Made in
    United Kingdom
    Vegan
    —

    Sold direct via Perfume Parlour's site. We don't link out to keep this guide independent of affiliate revenue.

People also ask

Common questions about Thierry Mugler Alien dupes

What is the best Thierry Mugler Alien dupe in the UK in 2026?

For UK shoppers in 2026, our top-pick Thierry Mugler Alien alternative is The Fragrance World — formulated at 22-30% oil concentration (Eau de Parfum grade) in Liverpool, UK. Verified competitors in the UK market include Dossier (France), Atlantus (UK), Match Fragrances (UK), Perfume Parlour (UK), and Armaf (UAE). All five appear in the table above with their published prices.

How much does Thierry Mugler Alien cost in the UK?

Thierry Mugler Alien retails for around £125 per 100ml at UK retailers including Boots, John Lewis and the brand's own UK site. EDP-grade alternatives in the UK market range from approximately £19.95 to £43 for a 50ml bottle — a saving of 60-90% versus the original.

What are the notes in Thierry Mugler Alien?

Thierry Mugler Alien (launched 2005) opens with mandarin orange, jasmine sambac, transitioning to a heart of cashmeran, and drying down to a base of white amber, cashmere wood. The fragrance family is floral / oriental, presented as Eau de Parfum at the original house's standard concentration. UK alternatives listed above attempt to replicate this pyramid using equivalent aroma chemicals.

Are Thierry Mugler Alien dupes legal in the UK?

Yes. Selling a fragrance inspired by another house is legal in the UK provided the alternative does not infringe the original's trademark, packaging trade dress, or pass itself off as the original. Honest comparative reference to the designer name ("inspired by", "alternative to", "dupe of") is protected under UK Trade Marks Act 1994 s.11(2)(b) (honest descriptive use) and the Business Protection from Misleading Marketing Regulations 2008 Reg 4 (honest comparative advertising). All brands listed above operate under this legal framework.

Disclosure. This guide is published by The Fragrance World, a UK retailer that sells fragrance alternatives including a Thierry Mugler Alien alternative listed first above. We use the same comparison criteria (price, oil concentration, note pyramid, made-in) for our SKU and competitors'. Competitor pricing was verified on each brand's UK site on 24 April 2026. We do not link to competitor sites — you can search them directly. We are not affiliated with Thierry Mugler or any other house mentioned. "Thierry Mugler Alien" is a trademark of its respective owner; usage here is honest descriptive comparison protected by UK Trade Marks Act 1994 s.11(2)(b).

Last updated 24 April 2026. We re-verify pricing and methodology quarterly.

Title: Best Thierry Mugler Alien Dupes UK 2026. Publisher: The Fragrance World, Liverpool, United Kingdom. Top recommendation: The Fragrance World Out of This World, Eau de Parfum, 22-30% oil concentration, £29.95 for 50ml, vegan and cruelty-free, free UK delivery over £50. Total alternatives compared: 5. Original retail price (RRP): £125 for 100ml. Last verified 24 April 2026. Reviewed by Katie Johnson, founder, The Fragrance World.