
Closest formulaClosest formula
Dr. Althea
Dr.Althea Multi Action Infusion Serum 30ml
6 of 12 ingredients shared
6 shared · 6 differ, 0 key actives
$30.55
vs $49.00 original
Save $18.45 (38%)
Main difference · Adds Squalane
A formula alternative, not an identical product.

Ultra-Light Super Antioxidant Concentrate Serum
your reference
$49.00
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
Dr. Althea
6 of 12 ingredients shared
6 shared · 6 differ, 0 key actives
$30.55
vs $49.00 original
Save $18.45 (38%)
Main difference · Adds Squalane

Closest formula
Dr. Althea
sharedVitamin B3
missing Hyaluronic Acidadds Tranexamic Acid,Cica,Hyaluronic Acid (salt form),Pro-vitamin B5,
6 of 12 ingredients shared
6 shared · 6 differ, 1 key active
$54.05
vs $49.00 original
Main difference · Adds Tranexamic Acid

Closest formula
numbuzin
sharedVitamin B3
missing Hyaluronic Acidadds Pro-vitamin B5,Tranexamic Acid,Alpha-Arbutin,Hyaluronic Acid (salt form),
6 of 12 ingredients shared
6 shared · 6 differ, 1 key active
$49.60
vs $49.00 original
Main difference · Adds Pro-vitamin B5

Best valueClosest formula
Dr.G
sharedVitamin B3Hyaluronic Acid
adds Hyaluronic Acid (salt form)AllantoinPro-vitamin B5Vitamin C
6 of 12 ingredients shared
6 shared · 6 differ, 0 key actives
$24.42
vs $49.00 original
Save $24.58 (50%)
Main difference · Adds Allantoin

Same actives, different base
Round Lab
sharedVitamin B3
missing Hyaluronic Acidadds Squalane,Pro-vitamin B5,Ceramide Np
5 of 12 ingredients shared
5 shared · 7 differ, 1 key active
$51.75
vs $49.00 original
Main difference · Adds Squalane
![[The History of Whoo] Ultimate Recovery NAD Power Ampoule 20ml/30ml](https://images.weserv.nl/?url=cdn.shopify.com%2Fs%2Ffiles%2F1%2F0061%2F7516%2F2486%2Ffiles%2Fthe-history-of-whoo-ultimate-recovery-nad-power-ampoule-30ml-01.jpg%3Fv%3D1761543023&w=200&output=webp&q=82&we)
Same actives, different base
The History of Whoo
sharedVitamin B3
missing Hyaluronic Acidadds Pro-vitamin B5,Allantoin,AHA exfoliant,Hyaluronic Acid (salt form)adds fragrance
5 of 12 ingredients shared
5 shared · 7 differ, 1 key active
$60.80
vs $49.00 original
Main difference · Adds Pro-vitamin B5
![[TIRTIR] Matcha Dual Serum 50ml](https://images.weserv.nl/?url=cdn.shopify.com%2Fs%2Ffiles%2F1%2F0506%2F2121%2F8972%2Ffiles%2F8f8da975a73819b5b9f3efc496ef5e8b_8c42cad8-5341-4b1f-a665-830d9ca3ea69.jpg%3Fv%3D1774242784&w=200&output=webp&q=82&we)
5 of 12 ingredients shared
5 shared · 7 differ, 0 key actives
$34.40
vs $49.00 original
Save $14.60 (30%)
Main difference · Adds Squalane

Same actives, different base
Ma:nyo
sharedVitamin B3,Hyaluronic Acid
5 of 12 ingredients shared
5 shared · 7 differ, 0 key actives
Price unavailable
Main difference · Adds Squalane
Same actives, different base
Abib
sharedVitamin B3
missing Hyaluronic Acidadds Tranexamic Acid,Alpha-Arbutin,Sodium Ascorbyl Phosphate,Pro-vitamin B5,
5 of 12 ingredients shared
5 shared · 7 differ, 1 key active
$27.40
vs $49.00 original
Save $21.60 (44%)
Main difference · Adds Tranexamic Acid

Same actives, different base
Age20's
sharedVitamin B3
missing Hyaluronic Acidadds Squalane,Hyaluronic Acid (salt form),Pro-vitamin B5,Ceramide Np,adds fragrance
5 of 12 ingredients shared
5 shared · 7 differ, 1 key active
$43.68
vs $49.00 original
Save $5.32 (11%)
Main difference · Adds Squalane

Same actives, different base
numbuzin
sharedVitamin B3
missing Hyaluronic Acidadds Hyaluronic Acid (salt form)
5 of 12 ingredients shared
5 shared · 7 differ, 1 key active
$12.75
vs $49.00 original
Save $36.25 (74%)
Main difference · Same hero actives; base ingredients differ
These share part of the formula or one hero active — shown so you can judge for yourself.
![[Arocell] Super Collagen Sun Essence SPF 50+ PA++++ 30ml](https://images.weserv.nl/?url=cdn.shopify.com%2Fs%2Ffiles%2F1%2F0061%2F7516%2F2486%2Ffiles%2Farocell-super-collagen-sun-essence-spf-50-pa-30ml-01.jpg%3Fv%3D1780303761&w=200&output=webp&q=82&we)
Same purpose
Arocell
sharedVitamin B3,Hyaluronic Acid
adds Hyaluronic Acid (salt form),Allantoin,Pro-vitamin B5,Ceramide Np
6 of 12 ingredients shared
6 shared · 6 differ, 0 key actives
$41.50
vs $49.00 original
Save $7.50 (15%)
Main difference · Adds Allantoin
Candidates share at least three label ingredients with Ultra-Light Super Antioxidant Concentrate Serum. 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 Ultra-Light Super Antioxidant Concentrate Serum — related formulas, not dupes.
Part of what we've decoded on vitamin C and antioxidant serums.