
Closest formulaClosest formula
Centellian24
Centellian24 Madeca Vitamin 15 Glowing Serum 30ml
15 of 20 ingredients shared
15 shared · 5 differ, 0 key actives
$24.26
vs $27.86 original
Save $3.60 (13%)
Main difference · Adds Vitamin B3
A formula alternative, not an identical product.

ilso Barrier Vital Banding Ampoule 30ml
your reference
$27.86
Only serum matches are shown.
picking by how much of the original's full ingredient list is shared · log in and set a skin profile to use this.
picking by how much of the original's full ingredient list is shared My skin: Log in and set a skin profile to use this.

Closest formulaClosest formula
Centellian24
15 of 20 ingredients shared
15 shared · 5 differ, 0 key actives
$24.26
vs $27.86 original
Save $3.60 (13%)
Main difference · Adds Vitamin B3

Closest formula
Dr.G
sharedCeramide Np
missing Hyaluronic Acid (salt form)adds Vitamin B3,Pro-vitamin B5,Allantoin,Squalane,
13 of 20 ingredients shared
13 shared · 7 differ, 1 key active
$29.25
vs $27.86 original
Main difference · Adds Vitamin B3
![[DERMATORY] Nia Shot+ IPMP Black Serum 30ml](https://images.weserv.nl/?url=cdn.shopify.com%2Fs%2Ffiles%2F1%2F0061%2F7516%2F2486%2Ffiles%2Fdermatory-nia-shot-ipmp-black-serum-30ml-01.jpg%3Fv%3D1779770693&w=200&output=webp&q=82&we)
Closest formula
Dermatory
13 of 20 ingredients shared
13 shared · 7 differ, 0 key actives
$29.00
vs $27.86 original
Main difference · Adds Vitamin B3

Closest formula
Anua
sharedCeramide Np
missing Hyaluronic Acid (salt form)adds Vitamin A,Squalane,Pro-vitamin B5,Allantoin
13 of 20 ingredients shared
13 shared · 7 differ, 1 key active
$25.00
vs $27.86 original
Save $2.86 (10%)
Main difference · Adds Vitamin A

13 of 20 ingredients shared
13 shared · 7 differ, 0 key actives
$47.00
vs $27.86 original
Main difference · Adds Cica

Closest formula
Easydew
sharedCeramide Np,Hyaluronic Acid (salt form)
adds Vitamin B3,Pro-vitamin B5,Sodium Ascorbyl Phosphate,Squalane
13 of 20 ingredients shared
13 shared · 7 differ, 0 key actives
$38.87
vs $27.86 original
Main difference · Adds Vitamin B3
![[Torriden] DIVE-IN Pro Low Molecular Hyaluronic Acid Glow Serum 120ml](https://images.weserv.nl/?url=cdn.shopify.com%2Fs%2Ffiles%2F1%2F0506%2F2121%2F8972%2Ffiles%2FTorridenDiveInProLowMolecularHyaluronicAcidGlowSerum120ml-3.jpg%3Fv%3D1778048765&w=200&output=webp&q=82&we)
Closest formula
Torriden
12 of 20 ingredients shared
12 shared · 8 differ, 0 key actives
$45.10
vs $27.86 original
Main difference · Adds Vitamin B3
![[Pyunkang Yul] Black Tea Boosting Serum 45ml](https://images.weserv.nl/?url=cdn.shopify.com%2Fs%2Ffiles%2F1%2F0595%2F2769%2F2455%2Ffiles%2Fproduct_images_1733971245.a48bbec27b96d6320ad1b54effc85b261734475164.jpg%3Fv%3D1734492980&w=200&output=webp&q=82&we)
Closest formula
Pyunkang Yul
sharedCeramide Np,Hyaluronic Acid (salt form)
adds Pro-vitamin B5,Cica
13 of 20 ingredients shared
13 shared · 7 differ, 0 key actives
$76.50
vs $27.86 original
Main difference · Adds Pro-vitamin B5

Closest formula
Pyunkang Yul
sharedCeramide Np,Hyaluronic Acid (salt form)
adds Pro-vitamin B5,Cica
13 of 20 ingredients shared
13 shared · 7 differ, 0 key actives
$23.27
vs $27.86 original
Save $4.59 (16%)
Main difference · Adds Pro-vitamin B5
![[KOPHER] Curepair Signature Ampoule 50ml](https://images.weserv.nl/?url=cdn.shopify.com%2Fs%2Ffiles%2F1%2F0061%2F7516%2F2486%2Ffiles%2Fkopher-curepair-signature-ampoule-50ml-01.jpg%3Fv%3D1760936906&w=200&output=webp&q=82&we)
Closest formula
Kopher
sharedCeramide Np,Hyaluronic Acid (salt form)
adds Vitamin B3,Cica,Pro-vitamin B5
12 of 20 ingredients shared
12 shared · 8 differ, 0 key actives
$56.00
vs $27.86 original
Main difference · Adds Vitamin B3

Best valueClosest formula
BIOHEAL BOH
sharedCeramide Np
missing Hyaluronic Acid (salt form)adds AllantoinPro-vitamin B5Vitamin B3Squalane
11 of 20 ingredients shared
11 shared · 9 differ, 1 key active
$18.11
vs $27.86 original
Save $9.75 (35%)
Main difference · Adds Allantoin
Closest formula
Atomy
sharedCeramide Np,Hyaluronic Acid (salt form)
adds AHA exfoliant (gentle),Argan oil,Squalane,Pro-vitamin B5,adds fragrance
12 of 20 ingredients shared
12 shared · 8 differ, 0 key actives
$39.85
vs $27.86 original
Main difference · Adds AHA exfoliant (gentle)
Candidates share at least three label ingredients with ilso Barrier Vital Banding Ampoule 30ml. Common bases are down-weighted, meaningful actives count more, and this view is scoped to the same product type. Commissions never affect order.
Hero actives first. We compare the meaningful actives named on the original’s label. Ubiquitous bases — water, glycerin, hyaluronic acid, butylene glycol — are never treated as evidence that two formulas do the same job.
Then the rest of the list. How many of the original’s ingredients also appear on the other label, always shown as a count against the original’s own length — never a headline number on its own. Candidates share at least three label ingredients with the original, common bases are down-weighted, and meaningful actives count more.
Price. Savings compare the best real offer we hold for each product, or its catalog price when there is no offer, and only within one currency. Commissions never affect the order of this list.
Your profile. Signed in, rows also mark ingredients you told us to avoid and the goals you set. That changes what is highlighted and what is ranked first — never which products qualify, and never what anyone else sees.
method v2 · 2026-08-30 — tiers replace the single 50%-share floor; same-brand aliases collapsed; hero actives exclude commodity humectants; sunscreens are never called dupes; labels under 10 ingredients are never called dupe sources.
Other products from the same brand that share decoded ingredients with ilso Barrier Vital Banding Ampoule 30ml — related formulas, not dupes.