{"product_id":"cosrx-the-niacinamide-15-serum-20ml","title":"[Cosrx] The Niacinamide 15 Serum 20ml","description":"\u003ch2\u003e1. Product Overview\u003c\/h2\u003e\u003cp\u003eA concentrated 15% Niacinamide serum designed to help manage excess sebum, refine the appearance of enlarged pores and improve uneven-looking skin texture.\u003c\/p\u003e\u003cp\u003eCOSRX The Niacinamide 15 Serum combines a high concentration of Niacinamide with Zinc PCA and Acetyl Glucosamine to provide targeted care for oily, blemish-prone skin and visible pores.\u003c\/p\u003e\u003cp\u003eThe lightweight formula helps reduce the appearance of excess shine while supporting a smoother, clearer and more balanced-looking complexion.\u003c\/p\u003e\u003cp\u003eNiacinamide works alongside Zinc PCA to address visible oiliness, while Acetyl Glucosamine complements the formula’s skin-texture and tone-evening benefits.\u003c\/p\u003e\u003cp\u003eTrehalose and Allantoin provide additional moisturising and skin-conditioning support.\u003c\/p\u003e\u003cp\u003eDesigned for use during the serum stage of your routine, this concentrated treatment offers a focused approach to pore appearance, excess sebum and post-blemish marks.\u003c\/p\u003e\u003ch2\u003e2. Why We Chose It\u003c\/h2\u003e\u003cp\u003eAt Glass Ritual, we distinguish between products that temporarily improve the appearance of pores and those that target concerns contributing to their visibility.\u003c\/p\u003e\u003cp\u003eWe selected COSRX The Niacinamide 15 Serum for its high-strength Niacinamide formulation, targeted sebum care and relevance to oily, blemish-prone skin.\u003c\/p\u003e\u003cp\u003eExcess sebum can contribute to shine, congestion and the appearance of enlarged pores. This serum provides a concentrated approach to managing visible oiliness while supporting a more refined-looking complexion.\u003c\/p\u003e\u003cp\u003eIts combination of 15% Niacinamide, Zinc PCA and Acetyl Glucosamine also makes it relevant for customers concerned about uneven skin tone and lingering post-blemish marks.\u003c\/p\u003e\u003cp\u003eUnlike exfoliating acids, Niacinamide does not directly dissolve blackheads. Instead, this serum complements a pore-care routine by addressing excess oil and supporting skin appearance.\u003c\/p\u003e\u003cp\u003eIt earns its place in our Pore Care \u0026amp; Blackheads Collection as a targeted treatment for sebum management and visible pore refinement.\u003c\/p\u003e\u003ch2\u003e3. Benefits\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eExcess-sebum care: Helps reduce the appearance of oily shine.\u003c\/li\u003e\n\u003cli\u003eVisible pore refinement: Supports a smoother, more refined-looking complexion.\u003c\/li\u003e\n\u003cli\u003e15% Niacinamide: Provides concentrated care for oiliness and uneven skin appearance.\u003c\/li\u003e\n\u003cli\u003eBlemish-prone skin support: Suitable for customers seeking targeted care for oily, congestion-prone skin.\u003c\/li\u003e\n\u003cli\u003eUneven skin tone: Helps improve the appearance of post-blemish discolouration.\u003c\/li\u003e\n\u003cli\u003eSmoother-looking texture: Supports a more even skin surface.\u003c\/li\u003e\n\u003cli\u003eSkin-conditioning support: Acetyl Glucosamine complements Niacinamide’s benefits.\u003c\/li\u003e\n\u003cli\u003eHydration: Trehalose helps maintain skin moisture.\u003c\/li\u003e\n\u003cli\u003eComfort: Allantoin contributes skin-conditioning benefits.\u003c\/li\u003e\n\u003cli\u003eRoutine flexibility: Can be used in the morning or evening according to the supplier.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003e4. Who It’s For\u003c\/h2\u003e\u003cp\u003eParticularly suited to:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eOily skin\u003c\/li\u003e\n\u003cli\u003eCombination skin\u003c\/li\u003e\n\u003cli\u003eSkin with visibly enlarged pores\u003c\/li\u003e\n\u003cli\u003eSkin experiencing excess shine\u003c\/li\u003e\n\u003cli\u003eBlemish-prone skin\u003c\/li\u003e\n\u003cli\u003eSkin concerned with congestion\u003c\/li\u003e\n\u003cli\u003eUneven-looking skin texture\u003c\/li\u003e\n\u003cli\u003ePost-blemish marks\u003c\/li\u003e\n\u003cli\u003eUneven skin tone\u003c\/li\u003e\n\u003cli\u003eThose seeking a concentrated Niacinamide treatment\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eFor sensitive skin: This formula contains 15% Niacinamide, a relatively high concentration that may cause flushing, stinging or irritation in some individuals.\u003c\/p\u003e\u003cp\u003eThose with reactive skin or limited experience using Niacinamide may prefer to introduce it gradually or begin with a lower-strength formula.\u003c\/p\u003e\u003ch2\u003e5. How to Use\u003c\/h2\u003e\u003col\u003e\n\u003cli\u003eCleanse your face and apply your preferred toner.\u003c\/li\u003e\n\u003cli\u003eDuring the serum stage, dispense a few drops of COSRX The Niacinamide 15 Serum.\u003c\/li\u003e\n\u003cli\u003eApply evenly across the face.\u003c\/li\u003e\n\u003cli\u003eGently massage with your fingertips, working from the centre of the face towards the edges.\u003c\/li\u003e\n\u003cli\u003eAllow the serum to absorb.\u003c\/li\u003e\n\u003cli\u003eFollow with moisturiser.\u003c\/li\u003e\n\u003c\/ol\u003e\u003cp\u003eMorning: Apply during the serum stage and finish with SPF 30 or higher, as directed by COSRX.\u003c\/p\u003e\u003cp\u003eEvening: Apply after cleansing and toning, followed by moisturiser.\u003c\/p\u003e\u003cp\u003eFrequency: The supplier confirms that the serum can be used during the day as well as in the evening.\u003c\/p\u003e\u003cp\u003eBecause the formula contains 15% Niacinamide, begin with less frequent application if you are new to concentrated serums and increase according to skin tolerance.\u003c\/p\u003e\u003ch2\u003e6. Ritual Position\u003c\/h2\u003e\u003cp\u003eStep: Treat — Excess Sebum, Visible Pores \u0026amp; Uneven Tone\u003c\/p\u003e\u003cp\u003eApply after cleansing and toning, before moisturiser.\u003c\/p\u003e\u003cp\u003eThis concentrated serum focuses on visible oiliness, pore appearance and uneven skin tone.\u003c\/p\u003e\u003cp\u003eMorning Routine\u003c\/p\u003e\u003cp\u003eCleanser → Toner → COSRX The Niacinamide 15 Serum → Moisturiser → SPF 30+\u003c\/p\u003e\u003cp\u003eEvening Routine\u003c\/p\u003e\u003cp\u003eCleanser → Toner → COSRX The Niacinamide 15 Serum → Moisturiser\u003c\/p\u003e\u003cp\u003eFor customers using exfoliating acids or retinoids, introducing high-strength Niacinamide separately may help identify individual skin tolerance.\u003c\/p\u003e\u003ch2\u003e7. Glass Ritual Pairing\u003c\/h2\u003e\u003cp\u003eFor cleansing:\u003c\/p\u003e\u003cp\u003ePair with ROUND LAB 1025 Dokdo Cleanser to remove daily impurities before applying targeted treatments.\u003c\/p\u003e\u003cp\u003eFor toning:\u003c\/p\u003e\u003cp\u003eFollow with a gentle hydrating toner to prepare the skin for serum application.\u003c\/p\u003e\u003cp\u003eFor targeted pore care:\u003c\/p\u003e\u003cp\u003eApply COSRX The Niacinamide 15 Serum to address excess sebum and the appearance of enlarged pores.\u003c\/p\u003e\u003cp\u003eFor moisturising:\u003c\/p\u003e\u003cp\u003eComplete the routine with a lightweight moisturiser suited to your skin type.\u003c\/p\u003e\u003cp\u003eGlass Ritual Routine\u003c\/p\u003e\u003cp\u003eROUND LAB 1025 Dokdo Cleanser → Hydrating Toner → COSRX The Niacinamide 15 Serum → Moisturiser\u003c\/p\u003e\u003cp\u003eDaytime: Finish with SPF 30 or higher.\u003c\/p\u003e\u003cp\u003eFor persistent blackheads, a suitable salicylic acid treatment may provide complementary care, introduced separately according to skin tolerance.\u003c\/p\u003e\u003ch2\u003e8. Key Ingredients\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eNiacinamide (15%)\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eA high concentration of Vitamin B3 that helps manage visible excess oil, improve uneven-looking skin tone and reduce the appearance of enlarged pores.\u003c\/p\u003e\u003cp\u003eNiacinamide also supports the skin’s moisture-barrier function.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eZinc PCA\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eA skin-conditioning ingredient commonly used in formulations for oily and blemish-prone skin. It complements Niacinamide in managing the appearance of excess sebum.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eAcetyl Glucosamine\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eA skin-conditioning ingredient that works alongside Niacinamide to support smoother-looking texture and a more even complexion.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eTrehalose\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eA moisture-supporting ingredient that helps maintain hydration and reduce moisture loss.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eAllantoin\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eA skin-conditioning ingredient that helps support skin comfort.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eTocopherol\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eA form of Vitamin E that provides antioxidant and skin-conditioning benefits.\u003c\/p\u003e\u003ch2\u003e9. Full Ingredients\u003c\/h2\u003e\u003cp\u003eOriginal Hypercape DS Ingredient List\u003c\/p\u003e\u003cp\u003eWater, Pentylene Glycol, Niacinamide(15%), Butylene Glycol, Acetyl Glucosamine, 1,2-Hexanediol, Zinc PCA, Trehalose, Xanthan Gum, Pullulan, Allantoin, Ethylhexylglycerin, Sodium Phytate, Citric Acid, Tocopherol\u003c\/p\u003e\u003ch2\u003e10. Safety \u0026amp; Ingredient Information\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eFor external use only.\u003c\/li\u003e\n\u003cli\u003eAvoid direct contact with the eyes.\u003c\/li\u003e\n\u003cli\u003eContains 15% Niacinamide, which may not suit all skin types or tolerance levels.\u003c\/li\u003e\n\u003cli\u003eHigh-strength Niacinamide may cause temporary flushing, warmth, stinging or irritation in some users.\u003c\/li\u003e\n\u003cli\u003ePatch test before first use.\u003c\/li\u003e\n\u003cli\u003eIntroduce gradually, particularly if you are new to concentrated skincare treatments.\u003c\/li\u003e\n\u003cli\u003eAvoid applying to broken or significantly irritated skin.\u003c\/li\u003e\n\u003cli\u003eExercise care when introducing alongside exfoliating acids, retinoids or other potentially irritating treatments.\u003c\/li\u003e\n\u003cli\u003eDiscontinue use if persistent irritation develops.\u003c\/li\u003e\n\u003cli\u003eFollow with moisturiser to support skin hydration.\u003c\/li\u003e\n\u003cli\u003eWhen used during the day, apply SPF 30 or higher as directed by the supplier.\u003c\/li\u003e\n\u003cli\u003eStore according to the instructions on the product packaging.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eIngredient Disclaimer: Ingredients and formulations may be changed by the manufacturer without prior notice. The ingredient list provided is for reference only. Always check the ingredient list on the product packaging before use, particularly if you have allergies or sensitivities.\u003c\/p\u003e\u003ch2\u003e11. Glass Ritual Note\u003c\/h2\u003e\u003cp\u003eExcess oil and visible pores often benefit from targeted care rather than stronger cleansing alone.\u003c\/p\u003e\u003cp\u003eCOSRX The Niacinamide 15 Serum provides concentrated sebum-focused care while supporting smoother texture and a more even-looking complexion. Introduce it gradually, follow with moisturiser and use sunscreen during the day.\u003c\/p\u003e","brand":"COSRX","offers":[{"title":"20ml","offer_id":67895999987903,"sku":"667995_WA40GN","price":51.92,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0563\/8501\/1903\/files\/1683872204782_b32f44d8b09c44e890eb7f3d73178bb5.jpg?v=1794028950","url":"https:\/\/peggyptyltd.com\/products\/cosrx-the-niacinamide-15-serum-20ml","provider":"Glass Ritual","version":"1.0","type":"link"}