The Vitamin C 23 Serum

Enhances skin elasticity with 23% pure vitamin C 
The 23% highly concentrated stabilized pure vitamin C serum improves skin tone, reduces wrinkles, and targets dull and rough skin as a vitamin C booster. This serum is highly effective, and to slowly prevent oxidation, it is divided into two layers with oil on top of the serum, providing a moisturizing finish. 

Detailed Description:
>Recommended for
COSRX The vitamin C 23 serum is ideal for those who have experience with vitamin c, seek powerful effects in a short time, and desire a special intensive care treatment.

>Target concerns 
- Hyperpigmentation 
- Anti aging 
- Dullness 
- Uneven skin tone 
- Dark spots

>Texture
The oil and pure vitamin c layers blend together and absorb smoothly into the skin, leaving it more supple and radiant. If you experience any stickiness, try adding a bit of moisturizer

>Color
It has a yellowish tint, indicating that it contains pure vitamin C and oil.

How To Use
After cleansing, during the serum phase, shake the bottle lightly once or twice from side to side and apply a few drops to the skin. Use fingertips to gently massage and absorb the serum, starting from the inside of the face working towards the edges.

/KEEP REFRIGERATED (3~10°C)/
*Please use immediately after purchase and store upright in refrigerator once opened.
>For the first use, attach the enclosed dropper in the product package.
>Recommended to use within 2 months of opening due to active ingredient protection. 
>Highly concentrated serum should only be used in the evening? NO! This serum can be used in the morning and/or afternoon.
>If applied in the morning, be sure to use with a SPF of 30 or higher.

Ingredients
 >Key Ingredients
• 23% Pure Vitamin C (Ascorbic acid) :
Antioxidant activity, brightening(improve blemishes and brighten skin), reduce wrinkles and enhance elasticity.
• Super vitamin E(Tocotrienol) :
50 times higher antioxidant activities than tocopherol, stimulate collagen production.
• Hyaluronic acid :
Strong moisture retention properties to maintain hydration.
• Allantoin :
Soothes and relieves irritation.

Full Ingredient List
Water, Ascorbic Acid(23%), Propanediol, Dimethicone, Tromethamine, Panthenol, Ethyl Ascorbyl Ether, Squalane, Caffeine, Sodium Chloride, Sodium Hyaluronate, Sodium Sulfite, Disodium EDTA, Glutathione, Adenosine, Acetyl Glucosamine, Gardenia Florida Fruit Extract, Allantoin, Dextrin, Tocotrienols, Tocopherol, Elaeis Guineensis (Palm) Oil, Butylene Glycol, Arginine, Niacinamide, Pentylene Glycol, Alcohol Denat., Helianthus Annuus (Sunflower) Seed Oil, Glycyrrhiza Glabra (Licorice) Root Extract, Methyl Trimethicone, Carthamus Tinctorius (Safflower) Seed Oil, Camellia Japonica Seed Oil, Daucus Carota Sativa (Carrot) Root Extract, Beta-Carotene.

Proven Results
>After 4 Weeks
Pigmentation
16.26% reduction in pigmentation
12.79% reduction in melanin area

Triple-Complexion Skin Tone
32.89% reduction in redness
16.67% reduction in yellowness
3.95% improvement in brightness

Elasticity & Lifting
16.36% improvement in external elasticity
12.19% improvement in internal elasticity
11.43% reduction in wrinkles

>After 1 Week
Brightening
32.36% improvement in brightness (skin radiance)

Pores
38.65% reduction in pore volume
36.01% reduction in pore area
27.18% reduction in pore count
11.57% reduction in pore depth

>Based on clinical trials of 20 subjects. As a result of the clinical trials from Dermacosmetic Skin Science Laboratory Co., Ltd.

FAQs
Q. Can I use vitamin C serum every day? 
This is a higher concentration of pure vitamin C, so it may come with skin irritation. We recommend you patch test back of the wrist, or on your neck before first use. It can be used every day, however if your skin feels irritated, please apply the product less frequently at first before increasing the frequency. If your skin feels severe irritated, we recommend you use with a moisturizer but if your skin still feels irritated, please apply the product less frequently or stop using it.

Q. What should you not mix with vitamin C? 
Mixing with hydroxy acid such as AHA, BHA may cause skin irritation, so we don't recommend using them with vitamin C.

Q. What can vitamin C be mixed with? 
Tocotrienol, hyaluronic acid, ceramide, snail, centella

Q. Do you put vitamin C before moisturizer?
Vitamin C is the best to use before skincare. If you use a light water serum-type C serum first and then cover it with a thick cream type, you can absorb more vitamins into your skin.  

Q. It has a strange smell. Is this normal? 
This serum does not contain fragrances. However, the vitamin C, by nature, has a certain smell that does not affect the potency of the product.