Yon-Ka Serum C20 Vitamin C Face Serum (5ML), Anti-Aging and Brightening Serum with Concentrated Vitamin C, Nutrient Rich Dark Spot Corrector and Wrinkle Reducer

I found this during a facial at a resort. I liked it and bought a small bottle. I have since gone through two bigger bottles. I only use a couple of drops a day and it works well. My skin texture is more even. I just wish it didn’t cost so much.

I normally can’t handle vitamin C due to my sensitive skin but YonKa has made a great product that doesn’t irritate! Leaves my skin brighter and so smooth. Bought the small size as I love “travel size” skin care!

This product is great, but know that it’s oil based. You only need a few drops. It sinks in nicely. Great for under your moisturizer.

Just received this serum and only used a few times. So far, so good. Was a little disappointed in the actual size of the product. The results will determine whether I purchase again.

I love the Yonka brand but this product fell short.

Lovely citrus fragrance and feels so smooth. I've always loved Vitamin C serums but this is one of the best I've used. I also like that I could start with a smaller dropper to make sure it worked for me before investing in the large version.

I love this Vit C! I’ve tried multiple brands and this is an excellent one. I use it in the morning before I put on my moisturizer and SPF. My face is brighter and I love how smooth it applies. Highly recommend this Product.

The scent of this Yon-ka Vitamin C Serum was too strong for me. Due to chemical and fragrance sensitivities, I was not able to use this product and did not try it on my skin. If you are sensitive to scents, I’d either pass on this or do a patch test before applying to your face.

I love yon ka and have been using it for years. I was really looking forward to trying the Vitamin C serum but compared to the usual wonderful smells of yon ka this smells like castor oil which is really disappointing.