Cos-IQ 20% Vitamin C Serum, 30ml | With Vitamin E & Ferulic Acid | Glowing & Brightening Skin | Anti-Aging Serum for Wrinkles, Fine Lines & Dark Spots | All Skin Types | 30-Days Pack

I've been using the COSIQ Vitamin CEF-20% Face Serum for a week now, and I'm genuinely impressed. The texture is lightweight and absorbs quickly without leaving any greasy residue. Within a few days, I noticed my skin looking brighter and more radiant.The serum claims to reduce dark spots and hyperpigmentation, and I can already see a slight improvement in my uneven skin tone. My fine lines also look a bit softer, and my skin feels more elastic and hydrated. I especially love that it uses Ethylated Ascorbic Acid – it's gentle but effective.Overall, a great product if you're looking for brighter, healthier-looking skin. Definitely worth trying!

Using it for few weeks—skin feels more hydrated and slightly brighter.Light texture, easy to apply, absorbs quickly.Mild stickiness that fades fast.No irritation on my combination skin.Good everyday serum.

Using it from 4 days loved the texture light weighted.love it skincare feels so easy because of 20% vitamic c 😍 I know it will give me hydration and it will be effective for me in long term I can see my skin gets brighter 💞

My skin is oily sensitive and acne prone. This face serum is like wow. I can see visible results in just 10 days use. It gives a glow and also reduce dark spots a little. Hope better in long term use.Worth purchase, go for it

What I like:1. it doesn't make my oily skin any oilier2. Airless pump packaging3. usage of ethyl ascorbic acid which is both water n fat soluble4. I have been using it for a month now and it works wellWhat could be improved:1. Plz include the % of niacinamide in the ingredient list , as some of us are allergic to it , at above 2% strength .2. Plz include the pH of ur products on the packaging, as it wud make layering, daytime vs nighttime usage easier to determine.Update: 1. Leakage of product- The pump packaging does not work well and additional product seeps out from the sides everytime I use the pump. I have noticed the same issue with their other products, which use the same packaging.2. Product gets oxidised, changes colour and loses efficacy about 3 months after opening it. So store it in d fridge if u want it to last longer.3. Due to point 1 , I am reducing my rating to 3 stars now.

Worst Product no changes in my skin even my skin get more worse after using this product and my skin gets more oily after using it don't buy it.

A Brightening Boost for Your Skin.If you’re looking for an affordable and effective way to revitalize your skin, This Face Serum is a game-changer. With its potent formulation and budget-friendly price, this serum promises glowing, even-toned skin.and it's Nonsticky at all. Just loved it.

Why did you pick this product vs others?:I have been using this vitamic c serum for quite a while now, and it suits my skin very well, value for moeny would recommend it to everyone, hydration and glow are perfect