Deciem Serum Foundation 2.1P dupes - verified by color distance

We measured Deciem Serum Foundation 2.1P (warm undertone, light depth) against every shade we track across 26 brands. The closest dupe is Deciem Coverage Foundation in 2.1P - near-identical (ΔE 0.0).

BrandProductShadeUndertoneDepthMatchPrice
DeciemCoverage Foundation2.1PWarmLightnear-identical (ΔE 0.0)$6.9
CliniqueAcne Solutions™ Liquid MakeupFresh Cream ChamoisWarmLightnear-identical (ΔE 1.7)$28
NyxGotcha Covered Concealer PencilCaramel BeigeWarmLightvery close (ΔE 2.2)$7
NyxBlotting PowderMedium/DarkWarmLightvery close (ΔE 2.6)$12
FentyPRO FILT'R - Soft Matte Longwear Foundation290 Neutral OliveWarmLightvery close (ΔE 3.1)$34
CliniquePerfectly Real™ MakeupShade 24WarmLightvery close (ΔE 3.3)$28
DeciemCoverage Foundation2.1YWarmLightclose (ΔE 4.7)$6.9
Physicians FormulaMineral Wear Talc-Free All-In-One ABC Cushion FoundationLight/MediumWarmLightclose (ΔE 4.7)$20.49

How we verify dupes

Shade names lie; color math does not. Each foundation shade is converted to Lab color space and compared by ΔE (perceptual color distance): under 2 is near-identical, 2-4 reads the same on skin in normal light. We also require the undertone and depth to line up, because two shades with the same surface color can wear differently if the undertone underneath differs. Not sure of your own undertone? Run the free undertone test or the full AI makeup analysis - both run in your browser.

FAQ

What is the closest dupe for Deciem Serum Foundation 2.1P?

Deciem Coverage Foundation in 2.1P - measured at near-identical (ΔE 0.0), with warm undertone and light depth.

Is there a cheaper dupe for Deciem Serum Foundation 2.1P?

The closest measured matches are listed above; compare current prices before buying, and confirm your own undertone with the free analyzer.

How are these dupes verified?

Each shade is converted to Lab color space and compared by ΔE (color distance): under 2 is near-identical, under 4 reads the same on skin. We also match undertone and depth, which drives how a shade actually wears.

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