Overview

The COSRX Niacinamide 15% Peptide Booster Set is a powerful skincare duo designed to enhance your skin's texture and radiance. This set combines a niacinamide serum with a peptide booster toner, providing a comprehensive solution to pore refinement and skin smoothing. The toner and serum work in tandem to calm irritation, reduce redness, and promote a more even complexion. For those struggling with oily or acne-prone skin, this skincare set offers a targeted approach to control excess oil while delivering noticeable skin improvements. It's perfect for anyone looking to boost their skin's elasticity and smoothness over time.

Key Ingredients & Benefits

This skincare set leverages the power of 15% niacinamide, a potent active ingredient that targets redness, refines pores, and improves overall skin texture. The peptide booster toner contains six peptides that work to boost skin elasticity, reduce fine lines, and enhance radiance. In addition, the formula includes zinc PCA to regulate oil production and minimize pore size. Free from parabens and sulfates, the set provides a gentle yet effective skincare routine for sensitive and oily skin types. These ingredients make it a great option for tackling common skincare concerns like redness and dullness.

Best For

This skincare set is ideal for individuals with oily or combination skin who need to control excess oil and reduce the appearance of enlarged pores. It's also highly recommended for those dealing with redness, irritation, or sensitivities related to acne-prone skin. Users seeking anti-aging benefits, such as fine line reduction and improved skin elasticity, will appreciate the added peptides. Whether you're aiming to refine your pores, smoothen your skin, or enhance radiance without harsh chemicals, this product can be a valuable addition to your routine.

User Feedback

Users generally report visible improvements in skin smoothness and reduced redness after consistent use of this set. Many find the formula to be gentle yet effective, particularly for sensitive skin types. Improvements in pore size and overall skin texture are commonly noted after just a few weeks of use. However, some users experience mild irritation during the initial application, so a patch test is recommended. While the product is widely praised for its gentle nature, the initial tingling sensation may cause concern for some, though it typically subsides after a few uses.

Pros

  • This skincare set visibly improves skin texture and radiance with consistent use.
  • Users with oily or acne-prone skin appreciate its pore-refining effects.
  • The 15% niacinamide concentration helps reduce redness and soothe irritation.
  • Gentle enough for sensitive skin, many users report no breakouts or flare-ups.
  • Visible reduction in pore size and smoother skin after a few weeks of use.
  • This product works well under makeup, providing a smooth base without feeling greasy.

Cons

  • Some users experience mild irritation during initial use, so patch testing is recommended.
  • Not hydrating enough for very dry skin types; additional moisturizing may be needed.
  • A few users mention the toner can feel slightly sticky before it fully absorbs.
  • The fragrance may be too noticeable for those sensitive to scents in skincare.
  • Results may take a few weeks to become noticeable, which may not suit users looking for immediate improvements.
  • Some users find the serum and toner feel a bit heavy in hot and humid climates.

Ratings

After analyzing verified user reviews of the COSRX Niacinamide 15% Peptide Booster Set across multiple languages and platforms, the aggregated ratings reflect a balance of strengths and areas for improvement. Spam, bot-generated, and exaggerated reviews were excluded to ensure only high-quality feedback shaped the results. Both positive and negative aspects have been captured, with many users highlighting its effectiveness on oily and acne-prone skin, as well as its gentle, non-irritating formula for sensitive users.

Effectiveness in Reducing Redness
88%
Many users have seen visible improvements in redness after using this serum and toner set, especially those with acne-prone or sensitive skin. The 15% niacinamide concentration is effective at calming irritation and improving overall skin tone, making it a go-to for those struggling with redness or post-acne marks.
Some users reported that while the product worked well for redness, results were slow to appear. A few also mentioned that it took longer than expected to see significant improvement, particularly for more stubborn redness or inflamed skin.
Pore Refinement
85%
Many reviewers found this serum and toner duo helpful in refining their pores. The combination of niacinamide and peptides works synergistically to tighten and smooth out skin, making pores appear smaller. It is especially effective for those with oily skin, where pore size tends to be more noticeable.
Not everyone experienced the pore-refining benefits they were hoping for. Some users noted that the effect on their pores was minimal, and the results weren't as dramatic as expected, especially for larger pores or skin with significant texture issues.
Skin Texture Improvement
90%
Several users praised the set for its ability to improve overall skin texture, leaving the skin smoother and more radiant. The peptides in the toner seem to play a key role in increasing skin elasticity and reducing fine lines, leading to a more youthful appearance over time.
While many found improvements, some felt that the texture change wasn’t as significant as expected. A few users with dry skin mentioned that while the texture improved, it didn’t provide as much hydration as they needed, leaving their skin slightly dull after use.
Suitability for Sensitive Skin
84%
The formula's gentle, non-irritating nature is a standout for many with sensitive or reactive skin. Reviewers with rosacea or frequent redness reported that the product helped soothe their skin without causing further irritation or discomfort, making it suitable for daily use.
Although the product is generally considered gentle, a small percentage of users with very sensitive skin experienced mild irritation during the first few applications. These users recommend performing a patch test before full use, as it might not suit everyone.
Absorption and Feel
87%
This serum and toner combo is well-loved for its lightweight feel and quick absorption. Users appreciate how it doesn't leave a greasy residue, making it a good choice for daily use, even under makeup. The product sinks in fast, leaving the skin feeling soft and non-sticky.
A few reviewers noted that the product’s texture could feel a bit tacky at first, especially when used in thicker layers. This slightly sticky feeling was mentioned as a minor issue for those with oily skin who prefer more lightweight products.
Hydration and Moisture Retention
83%
For many users, this skincare set delivers a good level of moisture, helping to balance the skin without making it overly oily or dry. The serum, combined with the peptide toner, helps lock in hydration, making it a good addition to oily skin routines.
While it offers hydration for some, those with dry skin mentioned that it wasn’t quite moisturizing enough for their needs. Some users felt that additional hydration products were necessary to prevent dryness, particularly in colder climates or during winter months.
Long-Term Results
86%
Many reviewers were impressed by the long-term benefits of using this set, particularly the improvement in skin texture, pore appearance, and overall radiance. Consistent use over several weeks showed significant changes, making it a solid choice for those looking for gradual, lasting results.
However, some users felt that the long-term results were subtle and took a while to appear. A few mentioned they did not see as much improvement in fine lines or elasticity as anticipated, even with continued use.
Packaging and Dispensing
82%
18%
The packaging is user-friendly and hygienic, with the toner and serum dispensed in controlled amounts. The bottles are sturdy and easy to handle, and the pump design ensures you get just the right amount without waste, making it an efficient product for daily skincare routines.
Some users felt the packaging could be improved for more precise application. A few mentioned that the toner bottle was prone to leaking, and there were minor complaints about the design being bulky for travel purposes.
Fragrance
79%
21%
Many users enjoyed the subtle, light scent of the product, which isn’t overpowering and fades quickly after application. The gentle fragrance made it pleasant to use daily without clashing with other skincare or makeup products.
A few users found the scent too strong for their liking, even though it wasn’t heavily fragrant. Those with fragrance sensitivities or aversions to scented products were disappointed, as the mild fragrance still triggered discomfort for some.
Value for Money
91%
This skincare set is often regarded as offering great value for money, especially considering the high-quality ingredients and the effectiveness of the products. Many users felt that the results justified the price, particularly since both the toner and serum are full-sized products.
While the value is generally praised, some buyers felt that the price could be on the higher end for a two-product set. These users were looking for a more budget-friendly option that still provided similar results.
Irritation Potential
72%
28%
For most users, irritation was minimal, with the product offering a soothing experience for the skin. It’s generally well-tolerated, even by those with slightly sensitive skin.
However, a significant number of users experienced mild irritation or tingling, especially during the initial few applications. Those with ultra-sensitive skin found that a patch test was essential before committing to full use.
Application Ease
85%
The application process is straightforward, with users finding the toner and serum easy to layer. The serum absorbs quickly, and the toner feels refreshing, making it a hassle-free addition to any skincare routine.
A few users found the two-step application to be a bit time-consuming in the mornings, especially when they were in a rush. The layering process, although simple, didn’t fit well into fast-paced routines for some.
Ingredient Quality
94%
Users appreciate the high-quality ingredients used in this product, particularly the combination of niacinamide, peptides, and zinc PCA. The formula is praised for its effectiveness in addressing multiple skin concerns without harsh chemicals, making it ideal for sensitive skin.
A few users were cautious about the use of certain ingredients, such as niacinamide, and expressed concerns about potential irritation. While these cases were rare, users with extremely sensitive skin may want to be cautious.

Suitable for:

The COSRX Niacinamide 15% Peptide Booster Set is ideal for individuals with oily or combination skin who are looking for a gentle yet effective solution to refine pores and reduce redness. Users dealing with acne, inflammation, or skin sensitivities will benefit from its soothing properties, thanks to the 15% niacinamide and the peptide-rich toner. Those seeking long-term improvements in skin texture, elasticity, and radiance will find this skincare duo particularly useful. For example, users looking to smooth rough patches, minimize pores, or combat signs of aging like fine lines and dullness will see notable results with consistent use of this serum and toner combination.

Not suitable for:

This product may not be the best choice for individuals with very dry skin, as it might not provide enough hydration on its own. Some users with ultra-sensitive skin reported mild irritation during the initial applications, especially when not performing a patch test. Those expecting immediate results in pore size or fine line reduction may also find this product lacking in dramatic quick fixes. Additionally, if you have a strong aversion to scents, even the light fragrance in this skincare set might be off-putting. It may not be suitable for people looking for an intensely moisturizing or fragrance-free formula.

Specifications

  • Brand: COSRX is the brand behind this skincare set, known for creating products with a focus on sensitive skin and effective ingredients.
  • Product Type: This product is a skincare set that includes a niacinamide serum and a peptide booster toner.
  • Key Ingredients: The set contains niacinamide, peptides, and Zinc PCA to target redness, pores, and skin texture.
  • Niacinamide Concentration: The serum contains a 15% concentration of niacinamide, which helps to reduce redness and refine pores.
  • Peptide Content: The toner contains 6 peptides that aim to improve skin elasticity and reduce fine lines.
  • Formulation: The product consists of two full-sized items: a serum and a toner, both designed for daily use.
  • Skin Type: This set is suitable for oily, combination, and sensitive skin types.
  • Free From: The product is free from parabens, sulfates, and artificial fragrances, making it gentle on the skin.
  • Benefits: It helps to reduce redness, refine pores, improve elasticity, and promote smoother skin texture.
  • Application Method: The toner is applied first, followed by the serum, in a typical skincare routine.
  • Size: Both products in the set come in full-sized packaging.
  • Packaging: The products are packaged in standard pump bottles for easy application.
  • Anti-Aging Benefits: The peptide toner supports anti-aging by reducing fine lines and enhancing skin elasticity.
  • Oil Control: Zinc PCA in the serum helps regulate excess oil production and minimize pores.
  • Sulfate-Free: This product does not contain sulfates, which can be harsh on the skin.
  • Fragrance: The skincare set is fragrance-free, which makes it suitable for sensitive skin.
  • Irritation Risk: Some users report mild irritation during initial use, so patch testing is recommended.
  • Long-Term Results: Users typically see improvements in skin smoothness, pore size, and redness after consistent use over several weeks.
  • Usage Frequency: The serum and toner should be used twice daily, morning and evening, for best results.

FAQ

Start with the Peptide Booster Toner after cleansing, applying it to a cotton pad and gently patting it into your face. Follow up with the Niacinamide Serum, massaging it evenly into your skin. For best results, use twice daily, morning and evening.

This skincare set is designed to refine pores, reduce redness, and improve skin texture with its 15% niacinamide concentration. The peptide toner also boosts skin elasticity, making it a great choice for those with oily, acne-prone, or sensitive skin.

Yes, the Niacinamide Serum can help reduce redness and inflammation, which is beneficial for acne-prone skin. The combination of niacinamide and peptides may also help with healing acne scars over time by improving overall skin texture.

Yes, many users with sensitive skin find this product gentle and effective. The formula is free of parabens and sulfates, making it suitable for those with sensitivities. However, as with any product, a patch test is recommended to avoid irritation.

Results vary depending on your skin type, but many users report seeing visible improvements in skin smoothness and redness reduction within a few weeks of consistent use. For best results, continue using it daily as part of your skincare routine.

No, this skincare set is formulated without artificial fragrances, making it a suitable choice for those sensitive to added scents. The product may have a mild natural scent, but it is not overpowering.

Yes, you can use this set with other products in your routine, including moisturizers and sunscreens. However, if you are using other active ingredients like retinol or exfoliating acids, consider applying them at different times of the day to avoid irritation.

Store the serum and toner in a cool, dry place, away from direct sunlight and extreme temperatures. Make sure to tightly close the caps after each use to prevent contamination and preserve the product's effectiveness.

This set is particularly effective for oily and combination skin types, as it helps control oil production and refines pores. It’s also beneficial for users with sensitive or acne-prone skin who are looking for redness relief and smoother skin texture.

While the product is generally gentle, some users have experienced mild irritation, particularly when first starting to use it. To minimize irritation, it's recommended to patch-test the product before full use and introduce it gradually into your routine.