The Ordinary Double Niacinamide Duo

The Ordinary Double Niacinamide Duo

Efficacy100/100IrritancyLow

Works for

Anti-blemish
Niacinamide, Zinc pca
Works well
What the product description says
“Containing not one but two bottles (a regular size and supersize), this serum uses two of the most efficient blemish-battling ingredients in an ultra-high concentration, light, fluid formula, to reduce both future breakouts and the appearance of existing blemishes.”
Source: Beauty Bay

This product can help reduce breakouts and clogged pores because it contains the following ingredient: niacinamide. This ingredient is used for treating acne and can have a noticeable effect.

The following ingredient (ingredients) in this product might be helpful, but there is no evidence to confirm that it actually works: zinc pca

NiacinamideHeroEffect: HighIs proven to be effective in reducing blemishes, evening out skin tone and helping to improve lines and wrinkles. It helps the skin to repair sun damage, calm down inflammation and keep maintain good levels of moisture. The concentration of about 2% is effective for supporting the skin barrier and evening out the skin tone. Concentration of 4-6% is better for helping with acne and balancing the sebum production~7.3–11%
Zinc pcaKey activeEffect: MediumA compound that combines zinc with a hydrating ingredient PCA. Might to be helpful against acne and clogged pores. Can help calm down inflammation in skin. Could be helpful in reducing the formation of free radicals in skin. Might help to reduce fine lines in wrinkles, but solid evidence is missing~3.3–4.9%
Anti-aging
Side benefit · Niacinamide, Zinc pca
Works well

This product can help reduce and prevent fine lines and wrinkles, improve skin elasticity and firmness because it contains niacinamide.

Keep in mind that it typically takes at least 6 weeks to notice any results because the changes that are needed to improve fine lines and elasticity happen in the deeper layers of the skin. No topical anti-aging product can “erase” wrinkles or fully reverse signs of aging.

NiacinamideKey activeEffect: HighIs proven to be effective in reducing blemishes, evening out skin tone and helping to improve lines and wrinkles. It helps the skin to repair sun damage, calm down inflammation and keep maintain good levels of moisture. The concentration of about 2% is effective for supporting the skin barrier and evening out the skin tone. Concentration of 4-6% is better for helping with acne and balancing the sebum production~7.3–11%
Zinc pcaEffect: LowA compound that combines zinc with a hydrating ingredient PCA. Might to be helpful against acne and clogged pores. Can help calm down inflammation in skin. Could be helpful in reducing the formation of free radicals in skin. Might help to reduce fine lines in wrinkles, but solid evidence is missing~3.3–4.9%
Moisturizing
Side benefit · Niacinamide, Zinc pca + 2 more
Works well

This product contains good ingredients to attract water to the upper layer of the skin. These ingredients are called "humectants": zinc pca.

When humectants are on the surface of the skin, they “pull in” the moisture from the outside environment, or from within deeper layers of the skin. If the air is dry, humectants can speed up the moisture loss from the skin. This is why it is a good idea to use another product on top of this one to help "seal in" the moisture (look for ingredients like dimethicone, squalane, oils and butters).

The following ingredients in this product are especially good for supporting the skin barrier and helping with the hydration level: niacinamide

NiacinamideHeroEffect: HighIs proven to be effective in reducing blemishes, evening out skin tone and helping to improve lines and wrinkles. It helps the skin to repair sun damage, calm down inflammation and keep maintain good levels of moisture. The concentration of about 2% is effective for supporting the skin barrier and evening out the skin tone. Concentration of 4-6% is better for helping with acne and balancing the sebum production~7.3–11%
Zinc pcaKey active· HumectantEffect: HighA compound that combines zinc with a hydrating ingredient PCA. Might to be helpful against acne and clogged pores. Can help calm down inflammation in skin. Could be helpful in reducing the formation of free radicals in skin. Might help to reduce fine lines in wrinkles, but solid evidence is missing~3.3–4.9%
Tamarindus indica seed gumKey activeEffect: MediumHelps to attract water to the upper layer of the skin and create a nice product finish on the skin~2.3–3.5%
Pentylene glycol· EmollientEffect: LowUsed to preserve products, dissolve other ingredients and create a nice product texture~4.5–6.8%
Evens skin tone
Side benefit · Niacinamide
Works well

This product can help reduce hypepigmentation and even out the skin tone because it contains the following effective ingredients: niacinamide

Keep in mind that you would need to apply any topical skincare targetted at hypigmentation consistently for a couple of months to get a result. No topical skincare product can help get rid of hyperpigmentation (including post-acne marks and age spots) instantly.

NiacinamideKey activeEffect: HighIs proven to be effective in reducing blemishes, evening out skin tone and helping to improve lines and wrinkles. It helps the skin to repair sun damage, calm down inflammation and keep maintain good levels of moisture. The concentration of about 2% is effective for supporting the skin barrier and evening out the skin tone. Concentration of 4-6% is better for helping with acne and balancing the sebum production~7.3–11%

Can it cause trouble?

Irritancy
5 flagged ingredients
Low risk
We flag 5 ingredients with irritancy potential; the product's overall irritancy is low. The table lists each ingredient's own rating.
IngredientFunctionIrritationEst. amount
Pentylene glycolUsed to preserve products, dissolve other ingredients and create a nice product textureMedium~4.5–6.8%est.
Tamarindus indica seed gumHelps to attract water to the upper layer of the skin and create a nice product finish on the skinMedium~2.3–3.5%est.
Isoceteth-20Helps water and oil mix togetherMedium~0.55–1.3%est.
EthoxydiglycolHelps to improve the product consistencyMedium~0.4–0.95%est.
ChlorphenesinA preservativeMedium~0.05–0.3%est.
Comedogenic
Clean of flagged comedogenic ingredients
None flagged

User reviews

Would you recommend?
No community reviews yet.

Be the first — your take helps the next person decide.

Ingredients

Filter by role to see what each ingredient is doing.

Water~40–60%
Formula
Irritation risk
Low

Plain old water

More about Water
Niacinamide~7.3–11%
Hero · Moisturizing, Anti-blemish
Irritation risk
Low
Works for
MoisturizingEvens skin toneAnti-blemishAnti-agingReduces irritationAnti-inflammatoryAntibacterialReduces redness

Is proven to be effective in reducing blemishes, evening out skin tone and helping to improve lines and wrinkles. It helps the skin to repair sun damage, calm down inflammation and keep maintain good levels of moisture. The concentration of about 2% is effective for supporting the skin barrier and evening out the skin tone. Concentration of 4-6% is better for helping with acne and balancing the sebum production

More about Niacinamide
Pentylene glycol~4.5–6.8%
Irritant · medium
Irritation risk
Medium
Works for
Moisturizing

Used to preserve products, dissolve other ingredients and create a nice product texture

More about Pentylene glycol
Zinc pca~3.3–4.9%
Key active
Irritation risk
Low
Works for
MoisturizingAnti-inflammatoryAnti-blemishAnti-agingAnti-oxidation

A compound that combines zinc with a hydrating ingredient PCA. Might to be helpful against acne and clogged pores. Can help calm down inflammation in skin. Could be helpful in reducing the formation of free radicals in skin. Might help to reduce fine lines in wrinkles, but solid evidence is missing

More about Zinc pca
Tamarindus indica seed gum~2.3–3.5%
Key activeIrritant · medium
Irritation risk
Medium
Works for
Moisturizing

Helps to attract water to the upper layer of the skin and create a nice product finish on the skin

More about Tamarindus indica seed gum
Xanthan gum~1.2–1.8%
Formula
Irritation risk
Low
Works for
Cleansing

Used to create a thicker product consistency

More about Xanthan gum
Isoceteth-20~0.55–1.3%
Irritant · medium
Irritation risk
Medium
Works for
Cleansing

Helps water and oil mix together

More about Isoceteth-20
Ethoxydiglycol~0.4–0.95%
Irritant · medium
Irritation risk
Medium

Helps to improve the product consistency

More about Ethoxydiglycol
Phenoxyethanol~0.15–0.65%
Formula
Irritation risk
Low

A preservative. It helps prevent bacterial growth in cosmetic products

More about Phenoxyethanol
Chlorphenesin~0.05–0.3%
Irritant · medium
Irritation risk
Medium

A preservative

More about Chlorphenesin
Ingredient list view

Water, Niacinamide, Pentylene glycol, Zinc pca, Tamarindus indica seed gum, Xanthan gum, Isoceteth-20, Ethoxydiglycol, Phenoxyethanol, Chlorphenesin

Compare prices

Retailers ranked by price — lowest first.

🇬🇧 Beauty Bay (UK)
≈ $20.63 Out of stock
Check

Affiliate links · As an Amazon Associate, WIMJ earns from qualifying purchases.

Worth comparing, line by line.

Match % combines shared ingredients, the first five ingredients, shared actives and hero ingredients, irritancy (lower counts in the alternative's favour), texture and body area. Only products in the same routine step are compared.

Side-by-side comparison of this product against its closest alternatives
The OrdinaryDouble Niacinamide DuoYOUR PRODUCTBoost LabVitamin B3 Blemish Rescue SerumArtNaturals LUXENiacinamide SerumBayageTHE SERUM SKIN PERFECTING NIACINAMIDE, ZINK PCA & MACA
Match—99%99%98%
Price—$16.52——
Shared key ingredients—2 of 22 of 22 of 2
Key difference—GlycerinSunflower Seed OilGlycerin
Irritancy Low Low Low Low
Drying alcohol————
View product Shop Shop Shop

More alternatives: Balea Niacinamide SerumBe Minimalist Niacinamide 10% Face Serum for Acne, Blemishes & Oil Control

Cheaper alternatives? See how this stacks up against similar formulas.
We compare ingredient profiles across our catalog — pick the closest match for your budget.
Open dupe finder

Product summary

"The Ordinary - Double Niacinamide Duo" is effective for: Anti-blemish, Anti-aging, Moisturizing and Evens skin tone

Ingredient callouts

  • A good concentration of Niacinamide (7.30% - 11.00%). Niacinamide is a well-studied multi-tasking active. It is stable, and can work well in almost any hydrating formulation. There is solid evidence that Niacinamide can help support skin barrier, regulate oil production and reduce acne and clogged pores. It also helps to fight photodamage and improve the skin tone, reducing pigmentation marks.
  • Humectants (zinc pca 3.30% - 4.90%). These ingredients help attract water to the upper layer of the skin and improve the skin hydration.

About the brand

According to Cruelty-Free Kitty "The Ordinary" is cruelty free, but its parent company is not.

Price

The product retails for 15.50£ in the United Kingdom.

For a detailed price comparison: click here.

The Ordinary Double Niacinamide Duo
The OrdinaryDouble Niacinamide Duo

Affiliate links · As an Amazon Associate, WIMJ earns from qualifying purchases.

As an Amazon Associate, WIMJ earns from qualifying purchases.