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Yon-Ka Serum C20

Reviews For Yon-Ka Paris Vitamine C 20% Anti-Aging & Brightening Serum

$46.00

Filtered by: Star Rating: 5 stars Clear Filters

18 Reviews
June 05, 2026

WOW!

I’ve always stayed away from serums due to the thick, sticky feel of them and never over emphasize the value of any product. That being said, I cannot believe the difference this product has made in the feel and appearance of my skin. I am 72 years old and my skin has never looked this good! It is brighter and smoother due to the Vitamin C. The drawback, of course, is the price. Very expensive. If I wish to continue using this, I will need to switch to a lower priced moisturizer. But this product has improved my complexion so much, the tradeoff will hopefully be worth it.

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sehj324

from Pennsylvania

Verified Purchase

0 people found this helpful

August 01, 2025

Amazing Vitamin C Serum

A new favorite! From the scent, to the texture, to the feel, this serum is one that I will continue to purchase. A little goes a long way. A must try!

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Spaskin

Age Group: 60-69

Normal Skin

Verified Purchase

1 person found this helpful

July 15, 2025

High vitamin c content

Referred by my esthetician, this serum is a favorite. It smells great, brightens, and feels good. Love it on my mature skin.

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Mtcgirl

Age Group: 70-79

Mature Skin

Verified Purchase

3 people found this helpful

January 27, 2025

Yonka serum C-20

I have been using this serum every morning for many years. It’s kind to my matured skin and by using a toner prior it goes a long way.

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LMM

Verified Purchase

2 people found this helpful

December 15, 2024

Provides Excellent Hydration

The Yon-Ka brand is new for me. I purchased this serum to use with my evening routine, as I already use a different brand of Vitamin C serum in the morning. This serum goes on smoothly and smells wonderful. I use it under a rich moisturizer and the combination is perfect for my skin. I'm active outdoors during the winter and so far my skin feels/looks hydrated and there's not a dry patch in sight.

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Celia

Verified Purchase

2 people found this helpful

June 12, 2024

Love, but too expensive for me!

I was introduced to Yon-Ka products about 2 years ago and now I am obsessed. I have even converted a few friends after letting them try my products. The smell and feel of this product is heavenly and I definitely notice a difference in regards to brightness when I use it. I just use so many Yon-Ka products that I felt like I was adding too much and, for the price, I just couldn't justify reordering it. I have rosacea and sensitive skin and this did not irritate it at all.

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JenCo

Verified Purchase

3 people found this helpful

April 28, 2024

Great Vitamin C

I’ve been in the skincare industry for several years and I’ve tried countless vitamin C serums. I like all natural skin care and items that pack a punch. This is one of the best vitamin C serums I’ve used and you can see a noticeable difference in 48 to 72 hours. It’s a bit expensive but you really only need 7 to 8 drops to cover your entire face so it should last a good while. It’s only necessary to use it in the daytime.

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Yoga108

Verified Purchase

4 people found this helpful

April 08, 2024

Love This!

This Yon-ja serum is amazing! It makes my skin feel so nice and smooth. I noticed my sun spots have lightened up.

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LovelySkin Customer

Verified Purchase

1 person found this helpful

January 08, 2024

Great Product!

After receiving a free sample, I ordered this product and love it! I believe it’s making a difference in my skin. I just turned 60, and am often told I look much younger than my age. I attribute this to using great skin care products, including this Vitamin C product.

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LovelySkin Customer

Verified Purchase

0 people found this helpful

December 23, 2023

Healthy Skin Vitamin

This Yon-ka Vit C Serum is like liquid gold on my face. I love it!

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LovelySkin Customer

Verified Purchase

0 people found this helpful

December 21, 2023

Lightweight and works well!

I received a sample from Lovely Skin and when I was done immediately ordered a full size bottle! This vitamin c serum is much lighter than Skinceuticals and works well paired under my hyaluronic acid serum. I use a lot of Yonka products and really recommend this one!

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KellyH

Verified Purchase

1 person found this helpful

December 13, 2023

New Vitamin C Favorite!

My esthetician introduced me to this product line and then I tried the Vitamin C Serum C20 and was hooked immediately. I've been using other Vitamin C serums that I love but this one is so silky smooth and hydrating. I love the feel when it's going on to my skin. It is a little pricey but I think that it's worth it.

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MindiN

Verified Purchase

1 person found this helpful

November 05, 2023

Oil based vitamin C serum

Love it especially during this time in the fall and then winter, help to lock in moisture in the skin with vitamin E in it

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LovelySkin Customer

Verified Purchase

0 people found this helpful

August 29, 2023

Amazing

I have been using this vitamin C serum regularly for about a month and a half. I liked the results immediately, but recently, I’ve noticed a dramatic change in the appearance of my skin. Thinking this might be my imagination, I didn’t pay too much attention to it. I ran into a friend yesterday who is a cosmetic specialist. She told me my skin looked amazing and askied me what I was doing. I attribute this to the vitamin C.

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LovelySkin Customer

Verified Purchase

1 person found this helpful

July 30, 2023

Hydrating

I like this vitamin c serum as it is very hydrating. I find that a lot of vitamin c serums could be drying. Not this one. I like the high content of vitamin c.

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Hbomb

Verified Purchase

1 person found this helpful

March 09, 2023

Love it!

I received a sample and then purchased this serum. I love the way that it smells and how it feels on my face.

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ElaineW

Verified Purchase

1 person found this helpful

March 03, 2023

Brighter skin

I live in Hawaii and always am a little bit tan, even tho I wear sunblock, I do not like being tan so imagine my joy to find out C20 keeps my face brighter and light with a special glow!

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LovelySkin Customer

Verified Purchase

0 people found this helpful

January 27, 2023

My new fave

Sometimes I can be super sensitive to products essentially serums. Instead of what the directions say, I put 4 drops into my yonka elastine nuit (night cream) and apply to face and neck. I still am achieving amazing results and this way I figure it’s not a direct application to my face and acts like a barrier cream for less irritating reaction. It’s common to add drops of serums to your creams with the yonka line to see maximum results.

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NikkifromNY

0 people found this helpful

18 Reviews

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