Cos-IQ 20% Niacinamide Face Serum For Clear Glowing Skin, Bright Skin, Reduces Dullness, Hydrates & Repairs Skin with Vit B3 & Hyaluronic Acid for Targets Acne Marks | For Women & Men | 30ml

I’ve been using the COSIQ Vitamin B3 20% Face Serum for a few weeks and I’m really impressed with the results. The texture is lightweight, absorbs quickly, and doesn’t feel sticky on the skin. I’ve noticed my pores look smaller and my skin feels smoother overall. It also helped calm some redness and reduced oiliness without making my skin dry. A great option if you’re dealing with acne marks, uneven skin tone, or enlarged pores. Definitely worth trying!

I used the COSIQ Vitamin B3 (20% Niacinamide) serum and I really like it. The texture is light and it absorbs quickly into the skin. It does not feel sticky or heavy.My skin feels smoother and more hydrated after using it.It works well in both morning and night routine. It contains Niacinamide , peptide and hyaluronic acid which improves your skin and makes your skin healthy.

I have introduced this into my skincare routine for about 2 weeks along with the Cos IQ FC 3 AHA+BHA facewash. I am in my mid 30s and noticed clogged and enlarged pores on my cheeks. I also have old acne hyperpigmented marks and discoloration on the chin. Using these products has made a significant change in my skin ! My pores don't appear as stretched as before. I have fewer breakouts and my acne marks as well as discoloration has faded. My skin looks smoother, even toned, brighter and softer too. This is solid improvement with just 2 products that are priced so reasonably. Already purchased my second bottle. My only issue is that the pink box it came in was not sealed, neither was the bottle. That's why I'm only giving 4 stars. Update: it's been a month of use, I'm highly impressed with this. But would like to mention that this serum might slightly dry out your skin with excessive use because 10% Niacinamide reduces sebum. This is perfect for excessively greasy skin though.

I have always preffered to use a strong niacinamide serum as i have a very oily acne prone skin and this product is so good. It makes the redness go away in no time and takes away oiliness and acne in a few weeks. You can also use it for anti ageing purposes as it comes with multi peptides. The consistency is very watery and light weight. Definitely give this a try if you're struggling with acne and do pair it with a ceramide moisturizer.

I’ve been using the COS-IQ 10% Niacinamide Face Serum for a few weeks and I’m happy with the results. The texture is lightweight, non-sticky, and absorbs quickly, making it perfect for both AM & PM use. It has helped control excess oil and reduced the appearance of small breakouts over time. I also noticed my pores look slightly refined and my skin feels smoother. The addition of hyaluronic acid keeps the skin hydrated, while the multi-peptide complex makes it feel healthy and balanced—not dry or irritated. I have sensitive-combination skin and didn’t experience any irritation or breakouts. With consistent use, it has also started to improve dark spots and uneven texture. Overall, this is a good quality niacinamide serum at a reasonable price, suitable for all skin types, especially oily and acne-prone skin. Will continue using it 👍

I’ve been using this Cos-IQ Vitamin B3 10% face serum consistently for a few weeks now, and it’s honestly one of the best budget niacinamide serums I’ve tried! The lightweight, non-greasy texture absorbs easily into my skin without leaving any sticky residue, making it perfect for both morning and night routines. It's fragrance free and easy to apply. Right from the first week, I noticed my complexion looking more even and brighter — dark spots and minor acne marks seemed to fade gradually with regular use. Many other reviewers also mention visible glow and softer skin texture after using this serum. What I really like is how it controls oil and minimizes the look of pores without irritating sensitive areas — it feels gentle yet effective. The added peptides and hyaluronic acid help keep my skin hydrated and smooth, so my face looks healthy and refreshed. At this price point CosIQ provides a good quantity of the product.

I had high hopes for this product but it's just average. It does what it's supposed to and the quality isn't bad at all! It has no scent which is perfect. It's super soothing on my skin and I have combination skin. But it is super sticky after drying, which i hate. Also the pump packaging sucks for a serum. The quality of the packaging is okayish. It's cheap so I'm okay with it

I’ve tried a lot of niacinamide serums over the years, and this one is easily one of the best. The texture is lightweight, absorbs quickly, and doesn’t feel sticky or heavy at all — perfect for layering under moisturizer or makeup. After about 2 weeks of daily use, I noticed my skin looked smoother, brighter, and more even. My pores appear smaller, redness has gone down, and my skin just looks healthier overall. I also love that it’s hydrating without making my skin oily. No irritation, no breakouts (and my skin is sensitive), just consistent results. A little goes a long way, and for the price, this is an absolute steal. I’ve already added it to my daily routine and will definitely be repurchasing. Highly recommend if you’re looking to improve texture, tone, and clarity