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The Best Niacinamide Serums for Oily Skin and Large Pores
Niacinamide, a form of vitamin B3, has become one of the most talked-about ingredients in skincare, and for oily or combination skin it’s easy to see why. It’s commonly used to help balance the look of excess oil, soften the appearance of enlarged pores, and support a smoother-looking complexion, all while being generally well tolerated.
A quick reality check on pores: their size is largely determined by genetics, and no serum can physically shrink them. What a good niacinamide serum can do is help reduce the look of shine and texture so pores appear less prominent over time.
In this guide, we’re rounding up some of the best niacinamide serums for oily skin and large pores.
What to Look for in a Niacinamide Serum
Concentration
Most effective formulas fall between 2% and 10%. Higher concentrations aren’t always better, since some people find 10% or more can cause flushing or irritation, particularly when first starting out.
Supporting Ingredients
Zinc is often paired with niacinamide for oil control, while hyaluronic acid or glycerin can add hydration so oily skin doesn’t tip into dehydration.
Texture
Oily skin generally prefers a lightweight, water-based or gel serum that absorbs quickly without leaving a sticky or heavy finish.
Fragrance-Free Formulas
Since niacinamide is often used daily, fragrance-free options are generally a safer choice for reactive or acne-prone skin.
Pilling and Layering
Some serums can pill when layered under other products, so a fast-absorbing formula tends to work better under moisturizer and sunscreen.
Best Niacinamide Serums at a Glance
| Product | Best For | Key Ingredients | Key Reason to Consider It |
|---|---|---|---|
| The Ordinary Niacinamide 10% + Zinc 1% | Budget-friendly oil control | Niacinamide, zinc | Affordable, widely used formula aimed at oil and congestion |
| Paula’s Choice 10% Niacinamide Booster | Targeted pore and texture support | Niacinamide, licorice extract | Well-regarded, dermatologist-favored booster formula |
| Naturium Niacinamide Serum 12% + Zinc 2% | Higher-strength option | Niacinamide, zinc | Higher concentration for those who tolerate it well |
| Good Molecules Niacinamide Serum | Gentle, minimal formula | Niacinamide, hyaluronic acid | Simple, lightweight and budget-friendly |
| La Roche-Posay Pure Niacinamide 10 Serum | Sensitive, reactive skin | Niacinamide, vitamin B5 | Dermatologist-developed with soothing support |
| COSRX Niacinamide 15 Serum | Dark spots and uneven tone | Niacinamide, mineral extracts | Higher-strength formula aimed at oil and uneven tone |
The Ordinary Niacinamide 10% + Zinc 1%
Best for: Budget-friendly oil control
This widely used serum combines a 10% niacinamide concentration with zinc, aimed at balancing oil and the look of blemish-prone skin at a very accessible price.
What makes it stand out: Its straightforward formula and low price made it a go-to starter niacinamide for a huge number of people.
Who may like it: Oily or combination skin wanting an affordable, no-frills option.
Pros:
- Very affordable
- Targets oil and congestion
- Simple, transparent formula
- Widely reviewed
Cons:
- Can feel slightly tacky on some skin
- 10% may cause flushing for sensitive skin
Verdict: A reliable, budget-friendly starting point for oily skin.
Paula’s Choice 10% Niacinamide Booster
Best for: Targeted pore and texture support
This booster is designed to be used alone or mixed into moisturizer, with added soothing ingredients to support comfort at a higher concentration.
What makes it stand out: Its formula pairs niacinamide with licorice extract, aiming to support even tone alongside smoother-looking texture.
Who may like it: Those wanting a well-formulated, dermatologist-favored option and willing to invest slightly more.
Pros:
- Thoughtful supporting ingredients
- Lightweight texture
- Can be mixed into other products
- Fragrance-free
Cons:
- Higher price than The Ordinary
- Smaller size relative to cost
Verdict: A polished, well-regarded option for texture and pore appearance.
Naturium Niacinamide Serum 12% + Zinc 2%
Best for: Higher-strength option
This serum steps up the concentration for those who already tolerate niacinamide and want a stronger formula.
What makes it stand out: The higher niacinamide and zinc levels target oil and visible pores more assertively than lower-strength formulas.
Who may like it: Oily skin that has already built tolerance to niacinamide.
Pros:
- Higher concentration
- Accessible price
- Lightweight feel
- Zinc included for oil control
Cons:
- More likely to irritate sensitive skin
- Not ideal as a first niacinamide
Verdict: A good step-up option once you know your skin tolerates niacinamide well.
Good Molecules Niacinamide Serum
Best for: Gentle, minimal formula
A simple, lightweight niacinamide serum with added hydration, priced for easy daily use.
What makes it stand out: Its minimal formula and low price make it an easy, low-risk way to try niacinamide.
Who may like it: Beginners or anyone preferring a gentler, uncomplicated serum.
Pros:
- Very affordable
- Lightweight, fast-absorbing
- Hydrating support
- Beginner-friendly
Cons:
- Less targeted than zinc-paired formulas
- Fewer extras than premium serums
Verdict: A simple, gentle pick for easing into niacinamide.
La Roche-Posay Pure Niacinamide 10 Serum
Best for: Sensitive, reactive skin
A dermatologist-developed formula that pairs niacinamide with soothing support for skin that tends to react.
What makes it stand out: It’s formulated with sensitivity in mind, offering niacinamide benefits with an added focus on comfort.
Who may like it: Oily skin that’s also easily irritated.
Pros:
- Dermatologist-developed
- Designed for sensitive skin
- Lightweight texture
- Trusted brand
Cons:
- Premium price point
- Smaller bottle size
Verdict: A thoughtful choice for oily skin that also runs sensitive.
COSRX Niacinamide 15 Serum
Best for: Dark spots and uneven tone
A higher-strength K-beauty serum aimed at oil, texture, and uneven tone.
What makes it stand out: Its 15% concentration is among the higher strengths widely available, aimed at those wanting more assertive results.
Who may like it: Experienced niacinamide users targeting tone and oiliness together.
Pros:
- High concentration
- Fast-absorbing texture
- Affordable for the strength
- Popular within K-beauty circles
Cons:
- Higher risk of irritation
- Not recommended as a starting point
Verdict: A stronger option for experienced users with resilient skin.
How to Choose the Best Niacinamide Serum for You
- Budget-conscious, new to niacinamide: The Ordinary Niacinamide 10% + Zinc 1% or Good Molecules Niacinamide Serum.
- Want a polished, well-supported formula: Paula’s Choice 10% Niacinamide Booster.
- Already tolerate niacinamide well: Naturium 12% or COSRX 15 for a stronger step up.
- Oily but sensitive: La Roche-Posay Pure Niacinamide 10 Serum.
How to Use Niacinamide Serum
- Apply after cleansing and toning, before moisturizer and sunscreen, following the order in our skincare layering guide.
- Start slowly. Try every other day for the first week or two to check how your skin responds.
- Pair with sunscreen. Daily SPF remains essential regardless of your serum.
- Combine thoughtfully with other actives. Niacinamide is generally well tolerated alongside most ingredients, but introduce new products one at a time.
- Pair with gentle exfoliation. If texture is a concern, an exfoliating toner a few times a week can complement your serum, and our guide to textured, bumpy skin covers other causes to consider.
Frequently Asked Questions
Does niacinamide shrink pores?
No product can permanently change pore size, but niacinamide may help reduce oil and texture so pores look less prominent.
How long does niacinamide take to work?
Most people notice gradual improvements over four to eight weeks of consistent use.
Can you use niacinamide every day?
Yes, most people use it daily, often morning and night, though sensitive skin may do better starting slowly.
Is a higher percentage of niacinamide better?
Not necessarily. Many people do well with lower concentrations, and higher strengths can increase the chance of irritation.
Can niacinamide be used with vitamin C?
Generally yes. Many people use them in the same routine, though you can separate them (vitamin C in the morning, niacinamide at night) if your skin is sensitive.
Final Verdict
For most oily skin types, a lightweight niacinamide serum is an easy, well-tolerated addition. The Ordinary Niacinamide 10% + Zinc 1% and Good Molecules Niacinamide Serum are strong budget picks, Paula’s Choice 10% Niacinamide Booster offers a more polished formula, and La Roche-Posay Pure Niacinamide 10 Serum suits sensitive skin. Those who tolerate niacinamide well can step up to Naturium Niacinamide Serum 12% + Zinc 2% or COSRX Niacinamide 15 Serum.
