Pruebe esto primero
The Ordinary Azelaic Acid Suspension 10%
El precio más bajo de los tres, con el mismo 10 % de ácido azelaico declarado.
Mismo ingrediente · tres fórmulas
Tres tratamientos con ácido azelaico al 10 %
Qué le ofrece esta página: Qué compra la diferencia de precio con la misma concentración del 10 % y dónde está de verdad la evidencia del ácido azelaico.
La respuesta corta
Qué hacer después
Paula’s Choice añade un 0,5 % de ácido salicílico al precio más alto. Es una diferencia de fórmula, no un mejor resultado demostrado.
Lo que esta página no puede decirle
Los ensayos más sólidos en rosácea usaron del 15 % al 20 % de ácido azelaico, por encima de estas tres fórmulas cosméticas.
Los tres productos
Los precios son una observación fechada, no una oferta vigente.
Precio más bajo · base matificante
The Ordinary Azelaic Acid Suspension 10%
$52.67 por 100 mLazelaic acid 10% · 30 mL tube
Ver la verificación de la fórmula (en inglés)
Leímos la lista de ingredientes del envase de este mercado · comprobado el 2026-08-23
Fragrance-free per the published list; dries to a matte, primer-like finish.
Precio más alto · añade 0,5 % de ácido salicílico
Paula's Choice 10% Azelaic Acid Booster
$193.33 por 100 mLazelaic 10% + salicylic 0.5% · 30 mL tube
Ver la verificación de la fórmula (en inglés)
Solo encontramos la lista de ingredientes en otro país. El envase de este mercado puede diferir · comprobado el 2026-08-23
Sold via the brand's official amazon.ca storefront; no Canadian brand store exists.
Precio medio · sérum para el enrojecimiento visible
The INKEY List 10% Azelaic Acid Serum
$90.00 por 100 mLazelaic acid 10% · 30 mL tube
Ver la verificación de la fórmula (en inglés)
Leímos la lista de ingredientes del envase de este mercado · comprobado el 2026-08-23
The formula strength, package and Canadian price are published. The brand's short consumer-perception claim is manufacturer evidence and is not used to rank effectiveness.
Qué cambiaPaula's Choice adds 0.5% salicylic acid and is the highest-priced option; The Ordinary has a matte silicone base; The INKEY List is a serum positioned for visible redness.
Las verificaciones, lado a lado
One question per row. The green check marks that row's better answer — there is no overall winner.
| Verificación | The OrdinaryAzelaic Acid Suspension 10% | Paula's Choice10% Azelaic Acid Booster | The INKEY List10% Azelaic Acid Serum |
|---|---|---|---|
| What's declared insidefrom the ingredient lists | Azelaic acid 10%silicone base, matte finish | 10% + salicylic acid 0.5%lighter lotion feel | Azelaic acid 10%serum positioned for visible redness |
| Our experiencepersonal notes, not results — see What we use | Current pickin the routine since mid-2025 | We liked itwe stopped over price, 2022–2025 | Not used by usincluded for its clear formula and current Canadian price |
Todo lo anterior en detalle: las verificaciones lado a lado, lo que halló cada estudio, lo que dicen las etiquetas y nuestras fuentes.
La evidencia detallada que sigue está escrita en inglés.
Por qué esta respuesta
Resumen de la comparación
What does the price gap buy?
All three state 10% azelaic acid. The Ordinary is the lowest-priced option, The INKEY List sits in the middle, and Paula's Choice adds 0.5% salicylic acid at the highest price. Evidence supports azelaic acid for acne, but the strongest rosacea trials used 15–20%, above these cosmetic formulas.
Qué coincide
All three are leave-on 10% azelaic acid treatments in 30 mL packages with current ingredient and price records.
Qué cambia
Paula's Choice adds 0.5% salicylic acid and is the highest-priced option; The Ordinary has a matte silicone base; The INKEY List is a serum positioned for visible redness.
Límite de la evidencia
Evidence on this page supports the ingredient, product type, or prevention step. It doesn't prove any one of these exact products is better.
Lo que los estudios encontraron de verdad
All three publish 10% azelaic acid and current price data. The INKEY List reports two small exact-product tests; neither provides a controlled comparison or enough public methods to rank it against the other formulas.
—Our search found no study of this product or this brand
The Ordinary Azelaic Acid Suspension 10%
The maintained ClinicalTrials.gov and PubMed searches returned no record naming this suspension or another product from The Ordinary. The parent company, Deciem, appears in PubMed only in author disclosure lines — fees for content creation and a grant for a sponsored conference, declared in a JAMA Dermatology paper on benzene in benzoyl peroxide products (PMID 39937513). That is a record of funding, not of testing.
Salvedad: The check covers ClinicalTrials.gov and PubMed; a study registered only outside the United States would not show up in either.
—Our search found no study of this exact product
Paula's Choice 10% Azelaic Acid Booster
The maintained ClinicalTrials.gov and PubMed searches returned no record naming this booster, another Paula's Choice product, or the brand's founder. They also identified no test of this exact 10% azelaic acid and 0.5% salicylic acid combination, and no measurement comparing its higher price with the cheaper tube, through August 23, 2026.
Salvedad: Registry and PubMed searches match product and brand names, so a study that referred to the formula only by an internal code would be missed.
✓Two small tests of 22 people each, and the methods were limited
The INKEY List 10% Azelaic Acid Serum
The current product page reports a four-day independent compatibility study under dermatological control in 22 people with rosacea-prone skin and a separate four-week independent consumer trial in 22 people. The page says the serum visibly minimized redness in four days, but it does not publish a comparison group, protocol, raw outcomes, statistical analysis, or enough detail to reproduce either test.
Salvedad: These are manufacturer-reported summaries of exact-product testing, not independently published controlled evidence. They do not establish how much of any change came from the serum or whether it outperforms either alternative.
ClinicalTrials.gov, PubMed, and the current product pages were checked through August 23, 2026. The INKEY List reports two small exact-product tests, but the maintained sources identified no independent controlled trial ranking these three finished products. Most treatment evidence for azelaic acid comes from other strengths and formulas; price does not change that evidence ranking.
Cómo buscamos estudios sobre estos productos exactos
Última búsqueda:
For each evidence row, search the quoted evidence-row product name, then the quoted brand plus the distinctive product-name tokens. A brand-wide statement additionally requires a quoted brand-name search. Formula codes are added only when an official or study source discloses them.
- ClinicalTrials.gov: Registered studies returned by exact product-name, brand-plus-product-name, and disclosed internal formula-code searches.
- PubMed: Indexed records returned by exact product-name and brand-plus-distinctive-product-token searches.
Lo que esto no le dice: A negative maintained search is a dated coverage statement, not proof that no study exists in another database, language, registry, sponsor archive, unpublished report, or differently named formula.
Notas y fuentes
- Azelaic acid has real acne evidence: the 2024 American Academy of Dermatology guideline conditionally recommends it (moderate certainty). The 2020 Cochrane review found it probably works less well than benzoyl peroxide and about the same as tretinoin (both moderate-quality evidence).
- For rosacea redness and bumps the evidence is high-certainty — but at prescription strengths of 15–20%. These 10% cosmetic products sit below the studied strengths, with no equivalent trials at 10%.
- Our acne evidence index tracks 3 registered azelaic-acid studies (1 with posted results); ClinicalTrials.gov lists 11 interventional azelaic-acne trials as of Aug 20, 2026.
- The Paula's Choice price is from its official storefront on amazon.ca — the brand no longer runs a Canadian store, and its own site bills in US dollars. No Canadian licence record was found for any product in this checked set (database searches through Aug 22, 2026); all are sold as cosmetics, which need none — that is about paperwork, not safety.
- Our experience notes are two people's impressions, not trial results.
- The INKEY List publishes a short manufacturer perception result, but methods and a comparison group are not reported; it is not equivalent to an independent controlled trial.
- ClinicalTrials.gov, PubMed, and current product pages checked through Aug 23, 2026 identified no independent head-to-head study of these exact products.
Después de la evidencia
Ver precios actuales en Amazon
Como afiliado de Amazon, Skinlogie obtiene ingresos por compras que cumplen los requisitos, sin costo adicional para usted. Los enlaces llevan a fichas exactas cuando están verificadas.