Dupes / Serums / Prequel Lucent-C Brightening Vitamin C Serum

[ DUPE_FINDER · 338 SERUMS COMPARED ]

Prequel Lucent-C Brightening Vitamin C Serum dupes: 3 serums with the closest formula

We compared Prequel Lucent-C Brightening Vitamin C Serum's full ingredient list with every serum in the DemythSkin database, weighting the ingredients that do the work (Ascorbic Acid, Ferulic Acid and Niacinamide) far above fillers. These are the closest matches, each with its own efficacy and safety score.

Prequel Lucent-C Brightening Vitamin C Serum
THE ORIGINAL
Prequel
Lucent-C Brightening Vitamin C Serum
Does it work?
4.0/ 5.0
4.0Effective
Is it safe?
4.3/ 5.0
4.3Gentle
Lowest price we have$23
40%FORMULA
MATCH
Geek & Gorgeous C-Glow
CLOSEST DUPE
Geek & Gorgeous
C-Glow
Does it work?
4.3/ 5.0
4.3Effective
Is it safe?
4.4/ 5.0
4.4Gentle
Lowest price we have$14.90

Shares Ascorbic Acid and Ferulic Acid. Ingredient lists don't state amounts, so strengths may differ.

[ 01 · FORMULA_SIDE_BY_SIDE ]

What does the work in each formula

Every ingredient graded on the same S to D scale the scanner uses. Solid chips are in both products; dashed chips are in only one.

Prequel Lucent-C Brightening Vitamin C Serum
Geek & Gorgeous C-Glow
Doing the work · 9 and 4 ingredients
SGold StandardsHigh clinical proof
Prequel Lucent-C Brightening Vitamin C SerumAscorbic Acid
Geek & Gorgeous C-Glow(L-)Ascorbic Acid
AReliableProven results
Prequel Lucent-C Brightening Vitamin C SerumFerulic AcidNiacinamide
Geek & Gorgeous C-GlowFerulic AcidTocopherol
BPotentDeveloping evidence
Prequel Lucent-C Brightening Vitamin C SerumEthoxydiglycolIsopentyldiolErgothioneineInulinHydroxyacetophenoneMannitol
Geek & Gorgeous C-GlowDimethyl Isosorbide
Not doing the work · 0 and 0 ingredients
COverhyped / MarketingHype · limited data
Prequel Lucent-C Brightening Vitamin C SerumNone detected
Geek & Gorgeous C-GlowNone detected
DDocumented irritantsEvidence-backed flag
Prequel Lucent-C Brightening Vitamin C SerumNone detected
Geek & Gorgeous C-GlowNone detected
FORMULATION BASE (5 · 6)0 shared ⌄
Prequel Lucent-C Brightening Vitamin C SerumWater (Aqua)PropanediolAminomethyl Propanol1,2-HexanediolCaprylyl Glycol
Geek & Gorgeous C-GlowAqua (Water)Butylene GlycolPeg/Ppg/Polybutylene Glycol-8/5/3 GlycerinPhenoxyethanolEthylhexylglycerinSodium Hydroxide
[ 02 · ALL_DUPES ]

The 3 closest dupes, ranked by formula match

Match is how much of Prequel Lucent-C Brightening Vitamin C Serum's weighted formula a product shares. Scores are each product's own, so a dupe can match closely and still score differently.

#ProductMatchWorks · SafePrice
01
Geek & Gorgeous C-Glow
Geek & Gorgeous
C-Glow
Shares Ascorbic Acid and Ferulic Acid
40%
Works4.3
Safe4.4
$14.90
02
PURITO Pure Vitamin C Serum
PURITO
Pure Vitamin C Serum
Shares Ascorbic Acid and Niacinamide
39%
Works3.9
Safe4.6
$18
03
e.l.f. Cosmetics Bright Icon Vitamin C + E + Ferulic Serum
e.l.f.
Cosmetics Bright Icon Vitamin C + E + Ferulic Serum
Shares Ascorbic Acid and Ferulic Acid
32%
Works4.3
Safe4.4
$17

Prices are the lowest retailer price in our records; a dash means we don't have one. We earn a commission if you buy through a "Find on Amazon" link. It never affects scores or matches.

[ 03 · HOW_WE_MATCH ]

How we find a dupe

01

Same product type

Serums are compared with serums, from the products we've scored.

02

Actives count most

S and A-grade actives weigh up to 30 times more than water, glycerin or thickeners. A dupe must share at least one key active.

03

30% match or more

Below that it isn't a dupe. Same brand and renamed versions of the original are left out.

A label lists ingredients, not amounts. Two products can share every ingredient at different strengths, so a high match means a similar formula, not a guaranteed identical result.

[ 04 · FAQ ]

Prequel Lucent-C Brightening Vitamin C Serum dupes, answered

What is the best dupe for Prequel Lucent-C Brightening Vitamin C Serum?

On formula, Geek & Gorgeous C-Glow: a 40% match, sharing Ascorbic Acid and Ferulic Acid. It scores 4.3 for efficacy and 4.4 for safety on DemythSkin's ingredient analysis. PURITO Pure Vitamin C Serum is next at 39%.

Is Geek & Gorgeous C-Glow the same as Prequel Lucent-C Brightening Vitamin C Serum?

Their ingredient lists overlap closely (40% by our weighted match), but labels list ingredients, not amounts. Two products can share ingredients at different strengths, so treat it as a close formula, not a confirmed copy.

What is a cheaper alternative to Prequel Lucent-C Brightening Vitamin C Serum?

Of the dupes we have a price for, the lowest is Geek & Gorgeous C-Glow at $14.90 (a 40% formula match), against $23 for Prequel Lucent-C Brightening Vitamin C Serum. Prices are the lowest retailer price in our records and change often.

How do you calculate the match percentage?

We compare full ingredient lists of the same product type, giving proven actives up to 30 times more weight than water, glycerin or thickeners. A dupe must share at least one key active and reach a 30% match; products from the same brand are left out.

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