Dupes & alternatives for Obagi-C20 Serum

C20 Serum
Obagi

C20 Serum

High irritancy Score: 91/100
20 alternatives found · Best match: 97% (High)
Vitamin C 20% Serum
90%
High match
$15.30
Medium irritancy

Why it matches

ASCORBIC ACID3-O-ETHYL ASCORBIC ACIDBETAINE

Key differences

NIACINAMIDEFERULIC ACIDHYDROLYZED SODIUM HYALURONATE +6 more
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Why it matches

ASCORBIC ACID3-O-ETHYL ASCORBIC ACID

Key differences

ADENOSINEPANTHENOLACETYL GLUCOSAMINE +7 more
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Similarity breakdown
Overall formula85%
Hero ingredients100%
Active ingredients38%
All ingredients26%
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Wrinkle Serum Professional
78%
High match
$83.00
Medium irritancy

Why it matches

ASCORBIC ACIDBETAINEGLYCERIN +1 more

Key differences

COPPER TRIPEPTIDE-1NIACINAMIDEBIOTINOYL TRIPEPTIDE-1 +11 more
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13 YEARS YOUNGER WRINKLE SERUM PROFESSIONAL: REGULAR PRICE | Vitabrid US
$83.00
Medium irritancy

Why it matches

ASCORBIC ACIDBETAINEGLYCERIN +1 more

Key differences

COPPER TRIPEPTIDE-1NIACINAMIDEBIOTINOYL TRIPEPTIDE-1 +11 more
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Triple Strength Vitamin C, E & Ferulic Acid Serum
$29.99
Medium irritancy

Why it matches

ASCORBIC ACIDCENTELLA ASIATICA EXTRACTGLYCERIN

Key differences

SALICYLIC ACIDRETINOLGLYCOLIC ACID +12 more
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Vitamin C Serum with Ferulic Acid and Vitamin E - SR Skincare
$5.00
Medium irritancy

Why it matches

ASCORBIC ACIDGLYCERINBETAINE

Key differences

FERULIC ACIDCARTHAMUS TINCTORIUS SEED OILOENOTHERA BIENNIS OIL +3 more
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Common ingredients (3)
Similarity breakdown
Overall formula78%
Hero ingredients100%
Active ingredients56%
All ingredients32%
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Vitamin C Serum
Buttah Skin
Vitamin C Serum
78%
High match
$33.00
Medium irritancy

Why it matches

ASCORBIC ACIDGLYCERINTOCOPHEROL

Key differences

FERULIC ACIDPANTHENOLCAMELLIA SINENSIS LEAF EXTRACT +3 more
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Common ingredients (3)
Similarity breakdown
Overall formula78%
Hero ingredients100%
Active ingredients38%
All ingredients32%
View full product details

About Similarity Scores

Our similarity score compares product formulas based on shared active ingredients, hero ingredients, and overall formula composition. A higher score means a more similar formula.

70%+ - High match
40-69% - Medium match
<40% - Low match

Note: Similarity is based on WIMJ's formula analysis (actives + overall formula similarity). Ingredient concentrations are estimated; products aren't lab-tested. A similar formula doesn't guarantee the same texture or feel.