What is the best Paula's Choice 10% Niacinamide Booster dupe?

The Ordinary Niacinamide 10% + Zinc 1% ($6) is the closest match on the active. It discloses the identical 10% niacinamide — the same hero ingredient, also second on the INCI — for about a fifth of the $34.30 price, in a larger 29.5735 mL bottle. The difference is what surrounds it: Paula's Choice adds a brightening/antioxidant supporting cast (a vitamin C derivative, licorice, green-tea EGCG, hyaluronic acid, beta-glucan, panthenol), while The Ordinary keeps it minimal — niacinamide plus 1% zinc PCA. Same active, leaner (and far cheaper) formula.

Is The Ordinary Niacinamide the same as Paula's Choice?

The hero active is the same — both disclose 10% niacinamide, the ingredient doing the work (regulating oil, refining the look of pores, calming redness, fading post-acne marks). The formulas are not identical: The Ordinary pairs the niacinamide with 1% zinc PCA in a deliberately minimalist base, while Paula's Choice layers in a vitamin C derivative, acetyl glucosamine, sodium hyaluronate, licorice, green-tea EGCG, beta-glucan and panthenol. If you just want 10% niacinamide, they're interchangeable; if you want the extra brightening and antioxidant actives, Paula's Choice is the more loaded formula.

Why is Paula's Choice niacinamide more expensive?

Partly the formula, partly the brand. 10% niacinamide is a disclosed, commodity concentration — both brands print the number on the label, so you are not paying for a stronger dose. Paula's Choice's premium does buy a real supporting cast (vitamin C derivative, licorice, green tea, hyaluronic acid, beta-glucan, panthenol) that makes it a genuine brightening/antioxidant multitasker, not just niacinamide. But for the niacinamide itself you pay roughly 8.5x more per gram: The Ordinary delivers the same 10% for about $6 versus $34.30.

Dupe report Nº 021 / Niacinamide 10% serums

Paula's Choice 10% Niacinamide Booster dupes, ranked by formula match

Name: The Ordinary Niacinamide 10% + Zinc 1% Serum for Oily Skin - 1.0 oz
Brand: The Ordinary
Price: 6 USD
Availability: InStock

It's 10% niacinamide. The Ordinary discloses the exact same number for about a fifth of the price per gram.

The verdict / read the actives, not the marketing

The Ordinary's $6 formula discloses the original's exact active. Same working ingredient, same percentage — at 17¢ on the original's dollar.

10 % ✓ identical Niacinamide

$6.00 vs $34.30 original The Ordinary

Supporting evidence: 82% base-formula match — the highest we measured across 1 candidates. 4 of the original's 27 ingredients. How we score ↓

The winner — if you can find it

The Ordinary Niacinamide 10% + Zinc 1% Serum for Oily Skin - 1.0 oz

Exact disclosed active and the closest base formula. $6, direct from The Ordinary — no Amazon listing.

Buy on Amazon $6 Breakdown ↓

Some links earn us a commission. It never changes the verdict — the methodology is public.

02 / The scoreboard

2 formulas, one number that matter

Read the actives column first — it is the apples-to-apples comparison. $ per gram of active is what the working ingredients cost you; the base-formula score is supporting evidence, not the verdict.

Product	Actives vs original	$ / g of active	Price	Base formula	Verdict
Paula's Choice 10% Niacinamide Booster	Concentration disclosed (10% niacinamide)	$17.31	$34.30 20 mL	100% the reference	The original
Exact disclosed active the direct clones — same actives, same percentages
The Ordinary Niacinamide 10% + Zinc 1% Serum for Oily Skin - 1.0 oz	Concentration disclosed (10% niacinamide)	$2.03	$6.00 30 mL	82% highest measured	The winner Amazon →

✓ same % as original ≠ different % ? in formula, % undisclosed — not in formula

03 / The original

Why the original is the original

Paula's Choice's 10% Niacinamide Booster leads with 10% niacinamide (second on the INCI, right after water) — but unlike most niacinamide serums it does not stop there. The formula is unusually loaded: acetyl glucosamine and ascorbyl glucoside (a vitamin C derivative), sodium hyaluronate, allantoin, licorice root, green-tea EGCG, beta-glucan, panthenol, carnosine and genistein. Niacinamide is the workhorse active — it regulates oil, refines the look of pores, strengthens the barrier, calms redness and fades post-acne marks — and Paula's Choice builds a brightening, antioxidant supporting cast around it.

But 10% niacinamide is a disclosed, commodity concentration. The brand prints the number on the label, and so does the most famous budget skincare line in the world. What the premium really buys here is the supporting cast — not a stronger or different dose of niacinamide.

So this page is honest in both directions. The Ordinary Niacinamide 10% + Zinc 1% discloses the exact same 10% niacinamide for about $6 versus $34 — and in a bigger 29.6 mL bottle, that works out to roughly an eighth of the price per gram of active. The niacinamide is identical. What genuinely differs is everything around it: Paula's Choice is a layered brightening/antioxidant serum, while The Ordinary is a minimalist niacinamide + 1% zinc PCA base. The real question is whether you want those extras — or just the niacinamide.

04 / The candidates

Every candidate, examined

01 / The Ordinary

The winner

$2.03 per g of active

$6.00 retail · 30 mL

82% base formula · highest of 6

The Ordinary Niacinamide 10% + Zinc 1% Serum for Oily Skin - 1.0 oz

Shared formula DNA 4 of 27 original ingredients present

Water Niacinamide Acetyl Glucosamine Ascorbyl Glucoside Butylene Glycol Phospholipids Sodium Hyaluronate Allantoin Boerhavia Diffusa Root Extract Glycerin Dipotassium Glycyrrhizate Glycyrrhiza Glabra (Licorice) Root Extract Epigallocatechin Gallate Beta-Glucan Panthenol Carnosine Genistein Citric Acid Sodium Citrate Sodium Hydroxide Xanthan Gum Ethylhexylglycerin Polysorbate 20 Trisodium Ethylenediamine Disuccinate Pentylene Glycol Caprylyl Glycol Phenoxyethanol

shared with original not shared rare marker — weighs more in the score

What matches: Discloses the identical 10% niacinamide — the same hero concentration as the original, also at INCI position #2 — plus 1% zinc PCA. Niacinamide is the shared active doing the work: regulating oil, refining the look of pores, calming redness and fading marks. At $6 for a larger 29.5735 mL bottle versus $34.30 for 19.8142 mL, that is roughly an eighth of the price per gram of active ($2.03/g versus $17.31/g).
What differs: A genuinely leaner formula. Paula's Choice surrounds its niacinamide with a brightening/antioxidant supporting cast — a vitamin C derivative (ascorbyl glucoside), acetyl glucosamine, sodium hyaluronate, licorice, green-tea EGCG, beta-glucan and panthenol — none of which The Ordinary includes. The Ordinary adds 1% zinc PCA and little else; some skins also find its texture slightly tacky. Same hero active, much smaller cast.
Who it's for: The winner — the pick if you want the original's exact 10% niacinamide for a fraction of the cost ($6 versus $34.30). If you specifically want the layered brightening and antioxidant extras, Paula's Choice earns part of its premium; if the niacinamide is the point, this is it.

Ships in: Packaging not verified No brand or retailer statement on the bottle — we won’t guess.
pH: pH not published L-ascorbic acid needs pH below 3.5 to absorb
Data source: Concentration disclosed (10% niacinamide) 10% niacinamide disclosed by brand; INCI verified verbatim (INCIDecoder); ASIN B01MDTVZTZ price PA-API-verified. Pulled from the verifiedbeautydata products.json verified record.

$6.00 for 30 mL → $2.03 per gram of active — 8.5× cheaper per active gram than the original's $17.31.

Buy on Amazon $6.00

05 / Methodology

How we verified this

Verified 2026-06-15

Every formula on this page was tokenized — split into its individual INCI ingredients — and matched against the EU CosIng ingredient database, so "Aqua," "Water," and "Eau" all resolve to the same ingredient.

The base-formula match score works like this: sharing a rare ingredient counts far more than sharing a common one. Almost every serum contains water and glycerin — that proves nothing. Almost nothing contains Ethoxydiglycol or Laureth-23, so when a candidate shares those with the original, it says something real about how the formula was built. (For the statisticians: it is an IDF-weighted Jaccard similarity over the normalized ingredient lists.)

Scores are computed, not opinions. The verdict tags are our editorial read of the actives, the scores, and the prices — and the methodology stays public so you can disagree with us precisely.

Where the ingredient lists come from

Concentration disclosed (10% niacinamide)

Sources for this report

INCIDecoder product pages (INCI verified verbatim)
Brand product pages — disclosed 10% niacinamide concentration
Amazon Creators PA-API — ASIN/price verification
verifiedbeautydata products.json verified records (niacinamide.json ingredient dossier)

06 / Questions

Frequently asked

What is the best Paula's Choice 10% Niacinamide Booster dupe?: The Ordinary Niacinamide 10% + Zinc 1% ($6) is the closest match on the active. It discloses the identical 10% niacinamide — the same hero ingredient, also second on the INCI — for about a fifth of the $34.30 price, in a larger 29.5735 mL bottle. The difference is what surrounds it: Paula's Choice adds a brightening/antioxidant supporting cast (a vitamin C derivative, licorice, green-tea EGCG, hyaluronic acid, beta-glucan, panthenol), while The Ordinary keeps it minimal — niacinamide plus 1% zinc PCA. Same active, leaner (and far cheaper) formula.
Is The Ordinary Niacinamide the same as Paula's Choice?: The hero active is the same — both disclose 10% niacinamide, the ingredient doing the work (regulating oil, refining the look of pores, calming redness, fading post-acne marks). The formulas are not identical: The Ordinary pairs the niacinamide with 1% zinc PCA in a deliberately minimalist base, while Paula's Choice layers in a vitamin C derivative, acetyl glucosamine, sodium hyaluronate, licorice, green-tea EGCG, beta-glucan and panthenol. If you just want 10% niacinamide, they're interchangeable; if you want the extra brightening and antioxidant actives, Paula's Choice is the more loaded formula.
Why is Paula's Choice niacinamide more expensive?: Partly the formula, partly the brand. 10% niacinamide is a disclosed, commodity concentration — both brands print the number on the label, so you are not paying for a stronger dose. Paula's Choice's premium does buy a real supporting cast (vitamin C derivative, licorice, green tea, hyaluronic acid, beta-glucan, panthenol) that makes it a genuine brightening/antioxidant multitasker, not just niacinamide. But for the niacinamide itself you pay roughly 8.5x more per gram: The Ordinary delivers the same 10% for about $6 versus $34.30.