COSRX - The Niacinamide 15 Serum (x40) (Bulk Box)

Some people may say the niacinamide Amount is too high but it works for my skin. I pair this with retinol a couple of days a week and it makes a huge difference.

The COSRX Niacinamide 15% Face Serum is an impressive addition to any skincare routine, particularly for those dealing with issues like hyperpigmentation, large pores, and uneven skin tone. Here's a detailed review of its features and performance:

**Ingredients and Formula**:
The serum boasts a potent concentration of 15% niacinamide, a form of vitamin B3 known for its brightening and anti-inflammatory properties. Additionally, the formula includes other beneficial ingredients such as panthenol (pro-vitamin B5) for hydration, and allantoin to soothe the skin. The serum is free from parabens, sulfates, and artificial fragrances, making it suitable for sensitive skin.

**Texture and Application**:
The texture of the serum is lightweight and slightly viscous, which allows for easy application without feeling greasy or sticky. It absorbs quickly into the skin, making it convenient for both morning and evening routines. The dropper bottle ensures precise dispensing, minimizing product waste.
**Results**:
With regular application, typically over a few weeks, the serum effectively diminishes hyperpigmentation and brightens the skin. It also aids in controlling excess sebum production, which can be beneficial for those with oily or acne-prone skin. The hydrating elements in the serum help maintain the skin's moisture barrier, preventing dryness and irritation.

**Packaging**:
The product comes in a sleek, minimalist bottle with a dropper for easy and hygienic application. The opaque bottle design protects the serum from light exposure, preserving the integrity of the ingredients.

**Pros**:
- High concentration of niacinamide
- Lightweight, non-greasy formula
- Noticeable improvements in skin texture and tone
- Suitable for sensitive skin
- Free from harmful additives

**Cons**:
- The 15% niacinamide concentration may be too potent for some, potentially causing initial irritation for sensitive skin types. It's advisable to perform a patch test before incorporating it fully into your routine.

**Conclusion**:
The COSRX Niacinamide 15% Face Serum is a powerful and effective solution for those looking to tackle hyperpigmentation, uneven skin tone, and enlarged pores. Its well-formulated blend of ingredients offers visible results without compromising on skin hydration or comfort. Despite its potency, with proper usage and gradual introduction into a skincare routine, it can become a staple for achieving clearer, brighter skin.

Based on so many reviews I’ve decided to try it. It’s too soon to say something but I like it so far. I don’t usually use spf if the UV index is low, but I’m not sure if I have to use it anyway after this serum.

ce sérum Big coup de coeur a faite partir mais boutons je le rachèterai big love

Great product for texture on the face and evening out your complexion.

bought my second bottle of cosrx niacinamide serum from yesstyle because I’ve been loving it so much! I use it in my PM routine and it gives me such a glow, I don’t think I’ll be trying any other serum for now. it has high % of niacinamide but that hasn’t affected my skin in any bad way fortunately. it’s only 20ml but it lasts for a long time, my first bottle lasted me 3 months.

Es hat mir gefallen und ich empfehle Ihnen, es zu kaufen, auch die Art und Weise, wie es verpackt ist, ist sehr wunderbar

J'avais des soucis d'acné, et le front assez gras, j'utilise ce sérum depuis 15 jours et je vois la différence, très bon sérum, je suis conquise

Buen precio, el producto es súper amable con la piel y combinado con los otros pasos de tu rutina hace maravillas, me encanta y si lo volvería a comprar

I have read a lot of positive reviews about this product, I hope I will be satisfied) I can't wait to use it

me encanta la mezcla de la niacinamida por la noche y la vitamina c de esta marca por el dia, me ayudan muchísimo más que cualquier otro producto para combatir el acné, me dejan la piel hermosa y a un buen precio

my skin improved.don’t snooze on this.I bought this and other products following recommendation from dermatologist.I also love how it makes my skin feel.get this and thanks to the brand.if you were ever in doubt,I hope this helps.totally worth the buy.zero regrets.absolutely love!

my skin improved.don’t snooze on this.I bought this and other products following recommendation from dermatologist.I also love how it makes my skin feel.get this and thanks to the brand.if you were ever in doubt,I hope this helps.totally worth the buy.zero regrets.absolutely love!

❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️

I really love all products from Cosrx. The texture of my skin looks better after using Cosrx products

Probablemente si te echas mucho te irrite ya que tienen mucho porcentaje de niacinamide