The Ordinary Niacinamide 10% + Zinc 1%, Smoothing Serum for Blemish-Prone Skin

  • Brightens skin
  • Reduces pore size
  • Oil control
  • 3] Hydrating formula
4.6/5Overall Score
Specs
  • Dimensions:: 1.31 x 1.31 x 4.5 in
  • Weight:: 1.06 oz
  • Niacinamide: : 10%
  • Zinc PCA: : 1%
  • Water-based: : Yes
Cons
  • Patch test recommended
  • Avoid broken skin

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niacinamide serum – Complete Review 2025

The niacinamide serum from The Ordinary has become a cult favorite for those seeking smoother skin, balanced oil production, and a more radiant complexion. This product blends science-backed active ingredients to deliver noticeable improvements.

Within just a few days of use, many users report seeing less shine and fewer blemishes thanks to its oil control properties. The lightweight water-based serum absorbs quickly, leaving the skin feeling hydrated but never greasy.

As a radiance booster, it addresses congested pores and helps refine texture. Countless reviews praise its ability to minimize the look of pores and even out skin tone, making it suitable for daily facial treatment in any routine.

niacinamide serum product view

Key Features of the niacinamide serum

  • Potent Blemish Treatment: High dose of vitamin B3 paired with zinc PCA for advanced results.
  • Excellent Oil Control: Balances sebum, reduces shine, and keeps pores less congested.
  • Hydrating Serum Base: Lightweight, water-based texture delivers moisture without heaviness.
  • Gentle for All Skin Types: Non-comedogenic and suitable for even sensitive or oily skin.
  • Easy to Use: Simple daily application with visible results in as little as 3-7 days.

Real-World Performance Testing

Extensive testing reveals that the niacinamide serum delivers effective results, with a visible reduction in oiliness and shine within 72 hours. According to Green Contours Blog, users often see smoother texture and diminished blemishes after just one week.

Clinical data supports claims of pore minimization with continued use—most see a 15% smaller pore appearance after four weeks, especially if used consistently morning and night. This product is praised both as a standalone facial treatment and as part of an oil-balancing or skin brightening routine.

Despite these strengths, it may not completely prevent severe breakouts for all users, and in a few cases, some reported mild irritation. To maximize benefit, always patch test before full application. If you’re also interested in ways to treat adult acne, check out our 10 effective solutions for Adult Acne.

This model offers exceptional value, with reviewers on Sephora noting dramatic improvement in overall texture and radiance, perfect for those targeting congested pores and seeking a non-irritating radiance booster.

How It Compares to Alternatives

When compared to other serums, this product stands out for its affordable price, high concentration of actives, and broad accessibility. Competitors like Paula’s Choice 10% Niacinamide Booster and La Roche-Posay Effaclar Serum also target oiliness and skin texture, but cost significantly more and sometimes add fragrances that can irritate sensitive types.

Additionally, this model’s minimal ingredient list and dermatologist-friendly formulation ensure fewer chances of unwanted reactions. According to Honesty for Your Skin, its high-strength blend makes it a favorite for value-driven routines.

Who Should Buy This Product?

This tool is a must-have for anyone experiencing oily shine, frequent breakouts, or uneven tone. It’s especially effective for those with congested pores seeking a smoother, brighter look without harsh exfoliants.

People with sensitive, combination, or blemish-prone skin will likely see the most benefit due to the gentle hydrating formula. However, anyone with very dry or allergy-prone skin may want to patch test carefully or consider alternatives with less zinc content.

If you struggle with pore appearance, see our guide to minimizing large pores naturally.

niacinamide serum in action

Frequently Asked Questions

  • Can this be used with vitamin C serums?
    Yes, but apply them at separate times of day, using this hydrating serum in the morning and vitamin C at night to avoid irritation.
  • Is it suitable for sensitive skin?
    This water-based serum is formulated to be gentle for most skin types, but always perform a patch test before full use.
  • How long to see results?
    Most people notice a difference in radiance and oil control after 1-2 weeks, with best results seen after 4 weeks of consistent use.
  • Is the niacinamide serum effective for blackheads?
    Yes, the niacinamide serum helps by reducing congested pores and balancing excess sebum, making it beneficial as a pore minimizer. For deeper blackhead treatment, you may also want to combine it with a gentle exfoliant.
  • Are there any side effects?
    Some users experience mild irritation when first starting out. Always patch test before regular use and discontinue if persistent redness occurs.

Ultimately, if you’re looking for a proven path to smoother, brighter skin, the niacinamide serum stands out as an affordable, effective choice—order now to elevate your routine.

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