The Niacinamide 15 Serum

Description

AQUA, PENTYLENE GLYCOL, NIACINAMIDE (Vitamin B3), BUTYLENE GLYCOL, ACETYL GLUCOSAMINE (Antioxidant), 1,2-HEXANEDIOL, ZINC PCA (Zinc), TREHALOSE (Sugar), XANTHAN GUM, PULLULAN, ALLANTOIN (Active ingredient derived from comfrey), ETHYLHEXYLGLYCERIN, SODIUM PHYTATE, CITRIC ACID, TOCOPHEROL (Vitamin E)

My Doctor's Diagnosis: Analysis and Target

The serum Cosrx The Niacinamide 15 Serum is primarily intended for skin prone to blemishes, excess sebum, enlarged pores, and hyperpigmentation. The high concentration of niacinamide (15%) positions this product as an expert solution for combination to oily skin, but also for those who wish to reduce pigmentation spots and strengthen the skin barrier. My opinion: Cosrx's formula is ambitious, targeting sebum regulation, breakout prevention, and improved radiance.

Formula Analysis: Key Assets

Three major active ingredients stand out in this serum:

• Niacinamide (15%) : This key ingredient acts to reduce imperfections, regulate sebum, and fade dark spots. It stimulates ceramide synthesis, strengthens the skin barrier, and has recognized anti-inflammatory properties.
• Zinc PCA Zinc is beneficial for acne-prone skin. It limits bacterial growth, regulates sebum production, and soothes irritation.
• Acetyl Glucosamine : This active ingredient promotes cell renewal and works in synergy with niacinamide to lighten pigmentation spots.

The synergy of these active ingredients gives the product remarkable effectiveness in addressing issues related to pores, radiance, and sebum control.

Tips and Application Ritual

I recommend applying this serum in the morning and/or evening, on clean, dry skin, before your moisturizer. It pairs perfectly with simple moisturizers or hyaluronic acid-based skincare products. However, it is best to avoid combining it with products that are highly concentrated in pure vitamin C or exfoliating acids (AHA/BHA) to limit the risk of irritation.

My Final Verdict & Safety Opinion

Visit Cosrx The Niacinamide 15 Serum stands out for its high concentration of active ingredients and minimalist formula, free from fragrance and alcohol. Its strengths lie in its effectiveness on pores, radiance, and preventing blemishes. One possible drawback: the high concentration of niacinamide may cause slight tingling on very sensitive skin. My opinion as a doctor: an excellent choice for combination to oily skin, to be gradually incorporated into your routine.

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