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COSRX

COSRX Advanced The Vitamin C23 Serum, 20g

COSRX Advanced The Vitamin C23 Serum, 20g

Light texture suitable for morning and evening use

Regular price $44.00 USD
Regular price Sale price $44.00 USD
Sale Sold out
Shipping calculated at checkout.
Quantity

• Authenticity guaranteed.

• Ships direct from Japan in 3-5 days

• Custom duties & tariffs fully handled by us for US customers.

• Track your order via USPS, Royal Mail, Canada Post, Australia Post.

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Why You’ll Love It

How to Work It Into Your Routine

This all-in-one mask can be used in your morning and evening skincare routine. 1/ After washing your face, apply the mask and cup your face with your palms. 2/ Gradually move your palms to press and massage your entire face. 3/ After 5 minutes, remove the mask and gently wipe it off, then pat the remaining serum into your skin. *If you are concerned about dryness, it is recommended to use it for about 10 minutes. *This is a gel-type serum. Please pat it in well before use.

What’s Inside

Water, Ascorbic Acid, Butylene Glycol, Dimethicone, Panthenol, 3-O-Ethyl Ascorbic Acid, Squalane, Sodium Hydroxide, Caffeine, Sodium Hyaluronate, Sodium Metaphosphate, Adenosine, Acetylglucosamine, Gardenia Fruit Extract, Allantoin, Dextrin, Tocotrienol, Tocopherol, Palm Oil, Arginine, Niacinamide, Pentylene Glycol, Glutathione, Sunflower Seed Oil, Methyl Trimethicone, Safflower Oil, Camellia Seed Oil, Carrot Root Extract, Licorice Root Extract, Beta-Carotene

Frequently Asked Questions

Are these products authentic?

Yes, authenticity is 100% guaranteed. 

We source directly from the brand, or from official stores within Japan. 

All products are fresh off the shelves, in its original Japanese version, and never outdated.

What are your shipping rates?

All orders over US$75 ships for free, applied automatically at check out. 

For all other orders, we charge US$10-20 for shipping depending on your location.

How long does delivery take?

Here are our latest estimate which includes 3-5 days for ordering processing in Japan. 

Actual delivery can be affected by customs or carrier delays in each country, all of which are outside of our control. 

  • USA: 12-15 days
  • Canada, United Kingdom, France, Germany: 9 to 12 days
  • Australia, New Zealand, Denmark, Finland, India, Indonesia, Italy, Netherlands, Spain, Sweden, Switzerland: 10 to 13 days
  • China, Hong Kong, Malaysia, Singapore, South Korea, Taiwan, Thailand, Vietnam: 8 to 10 days
  • Rest of the world: 11 to 18 days

*For in-stock items only. For pre-orders or restocking items, please contact us before placing an order if you need a detailed estimate. 

Will I pay customs or import fees?

US orders: We ship all orders DDP (duties delivered prepaid) which means that we handle all the import and custom duties on our end and nothing is due at your door. 

Orders outside the US: Duties and import taxes are set by your local customs authority and are not collected by us. Please note that all local charges are your responsibility. Unfortunately, there is no current system that allows us to handle this on your behalf from Japan.

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Honest reviews from skincare lovers around the globe.