Dupes for Fundamental Watery Oil Drop
by Klairs · Serum
6 products come close enough to call a dupe, best match first.
How the match is scored
A dupe is always the same kind of product — a serum is only compared with serums. Within that, two things are scored and blended.
Ingredient Match compares the two ingredient lists. Lists are ordered by concentration, so an ingredient near the top counts for more than one near the bottom; a dupe has to cover what matters most in the original. It weighs most of all.
Attribute Match compares what the two products are for: the benefits their ingredients are known for, such as hydrating or acne fighting. Those benefits come from the ingredients, not from tests of either product.
Only products scoring 60% or more are listed, at most 50. A match is about the formula on the label: it can't see concentrations the label doesn't print, texture, or how a product feels on your skin.
Dupe #1
They share 11 of this product's 28 ingredients (the dupe lists 34).
Both are
- Fragrance-free
- EU-allergen-free
- Alcohol-free
- Paraben-free
- Silicone-free
- Sulfate-free
- Pore-clogger-free
- Oil-free
- Reef-safe
- Vegan
- Cruelty-free
Both are likely good for
- Hydrating
- Barrier Repair
- Reduces Irritation
- Anti-Aging
- Firming
- Smoothing
- Oil Control
- Pore Refining
- Anti-Pollution
Brand price: USD 19.99 · checked 26 Sept 2026 · on the brand's site
Compare side by side →Dupe #2
They share 12 of this product's 28 ingredients (the dupe lists 37).
Both are
- Fragrance-free
- EU-allergen-free
- Alcohol-free
- Paraben-free
- Silicone-free
- Sulfate-free
- Pore-clogger-free
- Oil-free
- Reef-safe
- Vegan
- Cruelty-free
Compare side by side →Both are likely good for
- Hydrating
- Barrier Repair
- Reduces Irritation
- Anti-Aging
- Firming
- Smoothing
- Brightening
- Oil Control
- Pore Refining
- Antioxidant
- Sun Protection
- Anti-Pollution
Dupe #3
They share 11 of this product's 28 ingredients (the dupe lists 39).
Both are
- Fragrance-free
- EU-allergen-free
- Paraben-free
- Sulfate-free
- Oil-free
- Reef-safe
- Cruelty-free
Both are likely good for
- Hydrating
- Barrier Repair
- Reduces Irritation
- Anti-Aging
- Firming
- Smoothing
- Brightening
- Oil Control
- Pore Refining
- Antioxidant
- Anti-Pollution
Brand price: USD 27.00 · checked 25 Sept 2026 · on the brand's site
Compare side by side →Dupe #4
They share 12 of this product's 28 ingredients (the dupe lists 43).
Both are
- Fragrance-free
- EU-allergen-free
- Alcohol-free
- Paraben-free
- Silicone-free
- Sulfate-free
- Reef-safe
- Vegan
- Cruelty-free
Both are likely good for
- Hydrating
- Barrier Repair
- Reduces Irritation
- Anti-Aging
- Firming
- Smoothing
- Brightening
- Oil Control
- Pore Refining
- Antioxidant
- Anti-Pollution
Brand price: USD 19.80 · checked 25 Sept 2026 · on the brand's site
Compare side by side →Dupe #5
They share 12 of this product's 28 ingredients (the dupe lists 43).
Both are
- Alcohol-free
- Paraben-free
- Silicone-free
- Sulfate-free
- Pore-clogger-free
- Oil-free
- Reef-safe
- Vegan
- Cruelty-free
Compare side by side →Both are likely good for
- Hydrating
- Barrier Repair
- Reduces Irritation
- Anti-Aging
- Firming
- Smoothing
- Brightening
- Oil Control
- Pore Refining
- Antioxidant
- Sun Protection
- Anti-Pollution
Dupe #6
They share 10 of this product's 28 ingredients (the dupe lists 38).
Both are
- Fragrance-free
- EU-allergen-free
- Alcohol-free
- Paraben-free
- Silicone-free
- Sulfate-free
- Oil-free
- Reef-safe
Both are likely good for
- Hydrating
- Barrier Repair
- Reduces Irritation
- Anti-Aging
- Firming
- Smoothing
- Brightening
- Oil Control
- Pore Refining
- Antioxidant
- Anti-Pollution
Brand price: USD 25.00 · checked 25 Sept 2026 · on the brand's site
Compare side by side →