How does BeautyDupeFinder calculate chemical twin makeup dupes?

BeautyDupeFinder.co.uk compares publicly listed INCI active ingredient sequences, pigment ratios, wear longevity, and price-per-millilitre value combined with verified UK reader votes.

How do I find my high-street foundation shade match?

Use our 60-Second Undertone Quiz or Reverse Foundation Shade Translator to convert shades from MAC, Estee Lauder, NARS, Armani, and Charlotte Tilbury into e.l.f., L'Oreal, and Maybelline equivalents.

The Dupe Promise (DISC-AFF-01): 100-Point Glow Scores & Chemical Twin matches are calculated algorithmically from INCI lists & reader votes—brands cannot pay to alter a score. Affiliate links may earn a commission at zero extra cost to you. Paid slots are badged [Sponsored].

🇬🇧 BeautyDupeFinder.co.uk • Verified: 16/10/2026

✨ 94% FORMULA TWIN: e.l.f. Halo Glow (£15.00) vs Charlotte Tilbury Flawless Filter (£39.00) — SAVE £24.00• ☀️ #1 K-BEAUTY SPF TWIN: Beauty of Joseon Relief Sun SPF50+ (£13.00) vs Supergoop! Glowscreen (£35.00) — 100/100 GLOW SCORE• 🛡️ 94% CC+ CREAM TWIN: e.l.f. Camo CC Cream SPF30 (£15.00) vs IT Cosmetics CC+ Cream SPF50 (£38.00) — SAVE £23.00• 🍒 94% BLACK HONEY TWIN: NYX Fat Oil Slick Click In A Mood (£8.99) vs Clinique Black Honey (£25.00) — SAVE £16.01• 🍉 93% GLASS-SKIN TWIN: e.l.f. Thirst Burst Drops (£12.00) vs Glow Recipe Watermelon Dew Drops (£32.00) — SAVE £20.00• ✨ 95% GLOSS BOMB TWIN: Maybelline Lifter Gloss Stone (£8.99) vs Fenty Gloss Bomb (£19.00) — SAVE £10.01

UK's #1 Beauty Dupe Index • 80 Products Indexed

Find the exact dupe.
Luxury formulas for 70% less.

Why pay £54 for a prestige label when a £10 high-street twin shares 91.9% of the exact same INCI active ingredients? Search any product below, translate your current foundation shade, and save £560.13 across our 26 verified bestseller pairs.

Tap Your Skin Depth to Jump Straight to Your Shade Quiz:

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🔍 Search Any Product or Dupe → 🎨 Match My Current Shade

Undertone: Warm Peach • Dewy Finish

"Swapped to e.l.f. Halo Glow & Joseon SPF50+ — saved £46.00."

52 Bestsellers

26-Pair Full Bag Audit

26 Luxe:£804.00

26 Dupes:£243.87

Saved:£560.13 (69.7%)

3-Tier Precision Dupe Matcher • 80 Products Indexed

Search Any Beauty Product for Its Exact Dupe

Type any brand, product, or shade below. Our precision engine matches across all 52 core products + our Extended Viral Dupe Vault (MAC, Glossier, Tatcha, Hourglass, Kosas, Haus Labs, Summer Fridays, Saie & more).

Popular Dupes:

Instant Reverse Shade Lookup Matrix

Already Wear a Luxury Foundation? Translate Your Dupe Shade

Select the foundation shade you wear below to see your exact equivalent shade code in our top 4 high-street dupes.

Autonomous Evolution Loop • Live Demand Radar

Live Reader Search Tracker & Auto-Promotion Queue

⚙️ CEO Auto-Rule: Products reaching 5+ searches auto-promote to the Main Hall of Fame below.

Interactive Colour & Formula Diagnostic

Find Your Pretty Shade Passport

Tap your visual tone swatches below to unlock your Complexion, Lip, and K-Beauty SPF Twins.

Step 1. Tap the skin tone sphere closest to your natural complexion:

Step 2. Check your wrist veins & the jewellery that flatters you most:

Step 3. Your dream skin finish at 2:00 PM:

Step 4. How do you love to shop?

Send my instant Shade Passport plus the weekly BeautyDupeFinder™ Friday Edit. Unsubscribe anytime.

2026 Bestseller Catalog • 52 Verified Products (26 Pairs)

The BeautyDupeFinder™ Hall of Fame

Compare luxury icons against their high-street chemical twins. Tap ♡ Save on any card to build your personal payday wishlist & email yourself the buy links.

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[Sponsored Edit] Skin-Kind Score: 96/100 • Tri-Ceramide

Byoma Hydrating Milky Toner — Glass-Skin Prep Before Any Dupe Foundation

Stops matte concealers and foundations from clinging to dry patches • Verified £11.99 at Boots UK (16/10/2026)

Shop Partner at Boots →

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Don't need a foundation shade quiz? Join 14,500+ UK beauty lovers who get our newly lab-verified chemical twins, stealth reformulation alerts, and the £560.13 Master Dupe Cheat Sheet every Friday at 4:00 PM.

Find the exact dupe. Luxury formulas for 70% less.