Free Shipping + OST Original Pure Vitamin C20 Serum

C20 | OST,Whitening, VitaminC

New product

The best selling item of 2012 - 2014
the fastest effect with Vitamin C.
Need to tone up loose skin for keeping youth.

+ Includes Pure Vitamin-C 20%.
+ Whitening / Recovering trouble Scars.
+ Removing Blackheads.

** Required Reading ! 
The Vitamin C20 Serum's 
manufactured date is 04(APR).2016
Get your the freshest C20 Serum!

Brand : C20 
Volume : 30ml
All Skin Types
Made in Korea

[C20] Original Pure Vitamin C20 Serum + Vitmain Sleep 9 to 5 Crema
[C20] Vitamin C Skin Care Kit : 
Original Pure Vitamin C20 Serum (2EA) + Free Vitamin Sleep 9 to 5 Crema

[C20] Vitamin Sleep 9 to 5 Crema 

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  • Reviews (1079)
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Original pure vitamin C20 serum,
simple skin care with only one vitamin C.

Best awards winner 2013, 2014 ! Faster vitamin c effects with added peeling function.
Combine 20% L-ascorbic acid with natural antioxidants to help prevent premature signs of aging.
This serum will protect, soften and moisturizing your skin !


World best seller, Original Pure Vitamin C20 Serum is called as The miracle of one RED bottle.
100% Pure vitamin for remarkable, healthy skin.
OST Original Pure Vitamin C20 Serum contains about 6,000mg of 100% Pure Vitamin C. It contains 20% concentration of L-Ascorbic acid, which maximize the benefits, and additional feature of peeling function. As natural antioxidants, it helps prevent premature signs of again, while it protects, softens, and moisturizes your skin.

High portion of Vitamin C and still remarkably safe.
22.9% of OST Original Pure Vitamin C20 Serum is the real meaning of pure Vitamin C. One bottle of C20 serum contains vitamin c 40 times more than orange, 120 times more than strwberries and 200 times more than Mandarines.

Proved Effectiveness.
OST Original Pure Vitamin C20 Serum not only offers whitening, exfoliation and pore care effect, but also helps smooth the rough area on your skin, caused by spots or acne breakouts, when used regularly or long term. After using the serum, research shows positive result on skin condition. Out of 2075 respondents, who used OST Original Pure Vitamin C20 Serum :

  • 97.91% said, Skin looked brighter and more defined complexion.
  • 96.00% said, The serum reduced unwanted skin pigmentation and blemishes.
  • 92.20% said, Positive skin improvement after first usage.
  • 86.52% said, The serum smoothen out uneven texture.

Now, you can see that a lot of people in the world are using OST Original Pure Vitamin C20 Serum.

Before & After

How to use

1) Apply after cleansing and toning. Use 2~3 drops and smooth in gently all over face (Espacially smooth intensively the aged area such as pigmented or wrinkled lesions)
2) Initially, a slight tingling may be experienced. (a passing phenomenon)
3) Mixing with several drops of vitamin C20 and toner makes your skin refresh without being gooey.
4) After applying vitamin source C20, apply moisturizer is more effective.

* If you feel need more hydration, we recommend to vitamin sleep 9 to 5 crema. After applied C20 Vitamin serum, put on vitamin C cream over the layer. This combination will provide to you super synergy vitamin C effects. Learn more about Vitamin sleep 9 to 5 crema.


When you utilize this product please avoid using any products that contains high level of AHA, BHA (include Betain Salicylate), Retinal, Vitamin C (Ascorbic Acid).


Water, Ascorbic Acid, Ethanol, Sodium Lactate, Butylene Glycol, Glucose, Camellia Sinensis Leaf Extract, Rosa Davurica Bud Extract, Carthamus Tinctorius (Safflower) Flower Extract, PEG-60 Hydrogenated Castor Oil Sodium Hyaluronate, Bis-PEG-18 Methyl Ether Dimethyl Silane, Diethoxyethyl Succinate, Ammonium Acryloyldimethyltaurate/VP Copolymer, Xanthan, PEG-180, Gluconolactone, Beta-Glucan, Citrus Aurantium Dulcis (Orange) Oil,Zinc PCA, Panthenol, Niacinamide, Glycerin, Tocopheryl Acetate, Lecithin, Caprylic/Capric Triglyceride, Ubiquinone, Diisopropyl Adipate, Phenoxyethanol, Methylparaben

This rating is based on 1079 customers review !
?? Siva Kumar Kataru Location : Skin types : Age : Location : Date super awesome product
5/5 i have been using c20 serum for a month its just amazing diminishes my acne scars improved skin tone n texture loved it
?? Taengoo Lor Location : Skin types : Age : Location : Date Works Well
5/5 Just got it yesterday, and i think it works pretty well. I see a little change, but not sure if it works yet. Just saw some little fading. Will probably order more or i might get the C21.5 version
?? Gauri madan Location : Skin types : Age : Location : Date Not worth it for me
1.5/5 I bought this because of the reviews that said it was great for PIH and because it gave me free shipping. This did not work for me at all. It was just like I was putting this sticky thing on my face night after night to no avail. I will not be purchasing this again.
?? Juhenara Begum Location : Skin types : Age : Location : Date Holy Grail
5/5 I have repurchased this serum many times, i don't even want to try other things really!
The serum is not sticky and it has a pleasant fragrance.
It brightens the skin considerably and leaves skin feeling great.
?? Noor Alkhaleel Location : Skin types : Age : Location : Date good product
3.5/5 it helped in reducing the acne scar pigmentation and discoloration. But bear in mind that the results are very slow so be patient. Also be ware that this product can leave yellow stains on white fabrics: pillows, Tshirts . ecs..