Best Serums for Open Pores and Glass Skin
Open pores can make skin look uneven and textured. This article highlights five top serums designed to minimize pore visibility, refine skin texture, and support a radiant, glass-like finish. Each pick targets pore health, balance, and hydration, helping you choose a formula that fits your skin type and goals.
Summary of selected products
- FRANKLY Closer Serum — Pore Minimizer with peptides and adenosine
- COSRX 15% Niacinamide Serum — Pore refinement and tone correction
- Good Molecules Niacinamide Serum — Hydration with ectoin for sensitive skin
- BLITHE Pore Serum — 22% Niacinamide with a Korean pore-minimizing complex
- Paula’s Choice 20% Niacinamide Serum — High-strength pore tightening and tone evening
FRANKLY Closer Serum

FRANKLY Closer Serum combines nine peptides, adenosine, and vegan collagen to deliver instant radiance and a bouncy complexion. The formula is designed to tighten the appearance of pores while supporting skin elasticity. PHA acts as a gentle exfoliant, helping refine texture without harsh abrasion. The product aims to strengthen the skin barrier and promote a smoother, glass-like finish. This serum is suitable for users seeking both anti-aging benefits and visible pore refinement in a lightweight formula.
Key features include peptide synergy for glow, adenosine for anti-aging benefits, and gentle exfoliation with PHA. The texture is designed to feel smooth on application, leaving the skin looking more even and radiant over time. Users may notice improved texture and brightness with consistent use.
COSRX 15% Niacinamide Face Serum

CosRx’s 15% Niacinamide Serum targets pore size and uneven skin tone, helping to refine texture and reduce redness. Niacinamide with zinc PCA can support oil regulation and minimize pores, contributing to a clearer, more even complexion. This formula emphasizes brightening and smoothing, making it suitable for those dealing with congestion and visible pores. Regular use may lead to a more balanced skin surface and reduced pore visibility.
Benefits highlighted include pore refinement, oil control, and enhanced radiance. The high concentration of Niacinamide can support skin barrier function while addressing redness and texture concerns. This product is a popular choice for those seeking a straightforward, effective pore-minimizing option.
Good Molecules Niacinamide Serum With Ectoin

This serum pairs 5% Niacinamide with Ectoin to hydrate and support the skin barrier while targeting enlarged pores. It is designed to refine tone and texture, improve radiance, and provide deep hydration. The formula is suitable for sensitive or dry skin, offering soothing properties that help prevent irritation and moisture loss from environmental stressors. The combination aims to balance oil production and minimize pore visibility without compromising comfort.
Key advantages include barrier support, hydration, and pore refinement. Ectoin adds a protective, soothing layer, making this a versatile option for those with dry or reactive skin who still want pore smoothing benefits.
BLITHE Targeted Pore Serum

BLITHE’s Targeted Pore Serum uses a high-strength Niacinamide approach (22%) alongside a Korean pore-minimizing formula. The serum emphasizes reducing pore appearance and balancing oil with a combination of botanicals and ceramides. It is designed to address oil control and texture while contributing to a smoother, more refined complexion. The formulation highlights a Korean skincare science influence and a focus on pore care as a core benefit.
Highlights include high Niacinamide concentration, pore appearance reduction, and oil control with ceramides. This product is suitable for those who want a potent, targeted approach to pore minimization and a healthier skin barrier.
Paula’s Choice Clinical 20% Niacinamide Serum

Paula’s Choice Clinical 20% Niacinamide Serum is a high-strength option designed to tighten and refine pores while improving overall skin tone. This fragrance-free formula targets enlarged pores and rough texture, aiming for a clearer complexion. It also mentions improving discolorations and brightness as part of its multi-faceted approach. The combination of high Niacinamide concentration and targeted action makes it a popular choice for those seeking noticeable pore minimization and a more even skin tone.
Considerations include the balance between high efficacy and potential sensitivity for first-time Niacinamide users. For those with tolerances to active ingredients, this serum can offer strong results in pore reduction and tone correction.
Buying Guide
- Identify your skin type and pore concerns: If you have oily or acne-prone skin, look for serums that emphasize oil control and pore cleansing. If you have dry or sensitive skin, prioritize hydrating formulas with barrier support (such as ectoin or ceramides).
- Niacinamide concentration: Higher percentages (10%–20%) can offer more noticeable pore tightening and tone improvement but may increase the risk of sensitivity for some users. Start with lower concentrations to test tolerance.
- Complementary ingredients: Peptides, adenosine, and PHA can provide anti-aging benefits and texture refinement. Look for a combination that aligns with your goals—glow, smooth texture, or oil control.
- Texture and absorption: Lightweight serums that absorb quickly work well under makeup and for daytime use. If you prefer richer hydration, select formulas with humectants and barrier-supporting ingredients.
- Avoid potential irritants: Fragrance-free options benefit sensitive skin. Check for acne-prone formulations if you have a history of breakouts.
- Usage pattern: Begin with a patch test and introduce one active serum at a time to monitor skin response. For best results, pair pore-minimizing serums with a suitable sunscreen during the day.
- Multi-product approaches: For broader pore care, combine a Niacinamide-focused serum with a gentle exfoliant (like a BHA) on alternate days, ensuring you do not over-strip or irritate the skin.