Cos-IQ 5% Niacinamide Face Serum for Clear, Glowing Skin, 30ml

The CosIQ Vitamin B3 5% Serum is a lightweight, fast-absorbing serum designed to improve skin texture and tone. With 5% niacinamide (Vitamin B3), it helps reduce dark spots, minimize pores, and control oil production, making it great for oily and combination skin types. Users often report smoother, more even-toned skin with regular use. It's gentle enough for daily application and works well under other skincare products. However, results may vary for those with sensitive skin, and some users might need to introduce it gradually to avoid irritation. I am loving this product.100 percent recommended.

Overall everthing is good about the product. It have simple & safe ingredients. Fragrance free. Subtle moisturizing so I skip mositurizer & apply sunscreen. Best for oily acne prone skin. Doesn't cause any irritation. It is good to start at the initial phase of acnes. It will prevent it from growing big & removes all acne marks. If there are already acnes like 1 month old then it takes 2 months to remove the acne marks. I don't see any improvement in 6 month old acne marks. It is good product in affordable range.

First time use kar rahi hon. Accha hai but lagane ke baad thodi sensition si hoti hai. Overall good product in low price.

I've been using the COSIQ Niacinamide B3-10% Serum for a few weeks, and the results are amazing! My skin feels smoother, more even-toned, and my dark spots have visibly reduced. The lightweight formula absorbs quickly without feeling sticky, and I love that it has aloe vera and hyaluronic acid for extra hydration. It layers well under moisturizer and sunscreen, making it perfect for daily use. If you're looking for a gentle yet effective niacinamide serum, this is definitely worth trying. Highly recommend!

"I used this skin product for a month, but I didn’t notice any difference. On the contrary, I started getting pimples on my face. The pores I wanted to reduce showed no improvement either. There was no glow or enhancement in the skin — instead, my skin became even thinner. This product is expensive as well, and it didn’t show even 1% effectiveness. That’s why I would not recommend it to anyone."

As a dancer who uses a lot of makeup products daily, finding the right skincare has always been a challenge. After trying the cosIQ Face Serum, I can honestly say I’ve seen a significant change in my skin. This serum is lightweight, absorbs quickly, and leaves my skin feeling incredibly smooth and hydrated. Despite the heavy makeup I wear for performances, my skin now looks clearer and more radiant than ever. If you’re a dancer or someone who uses a lot of makeup, this serum is a game changer. Highly recommended!

For the past two years, I have been using Niacinamide from Minimalist, but they started increasing the price every 4–6 months. Because of this, I began looking for another brand. First, I don’t like the squeeze function of the bottle. Second, the serum doesn’t dry properly and leaves behind a sticky feeling, like sugar water on my skin. I guess I’ll have to go back to Minimalist.

I liked this serum very much, it’s watery texture. I loved it. I’m thoroughly impressed with the results. The serum has a silky texture that absorbs quickly and leaves no residue. I highly recommend it to anyone looking for a boost in their skincare routine❤️