VT Cosmetics
Vitamin C Astaxanthin Serum
VT's vitamin C and astaxanthin serum. It is the middle step between toner and cream, morning or evening, in a routine working on tone.
No reviews yet- Ships from our California warehouse
- Duties prepaid
- Helps with
- Texture and fine linesA first step zero layer before serumOverall hydration support
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- Duties prepaid
- 30-day returns
- Free US shipping on orders of $100 or more
- Dispatched within 2 business days
How it works
Vitamin C Astaxanthin Serum is built as a step zero booster, the layer VT's Reedle Shot line places before serum rather than after it. The ingredient list places Niacinamide at fifth, Arginine at 15th, Sodium Hyaluronate at 18th, which is the formula's own account of where its real weight sits rather than a headline claim. Hydration-focused ingredients round out the rest of the list, giving the formula a moisture-supporting base under its lead actives. Used before serum, it is meant to prime the skin so what follows settles rather than sitting on the surface. VT sells this as the core entry in its Reedle Shot family, and the formula is meant to be layered under whatever serum or cream a routine already runs.
Key benefits
- Niacinamide listed fifth on the ingredient list, tone and texture
- Arginine listed 15th on the ingredient list, pH balance, moisture support
- Sodium Hyaluronate listed 18th on the ingredient list, hydration
- Squalane listed 21st on the ingredient list, lightweight emollient
- Positioned as a step zero booster ahead of serum in VT's Reedle Shot format
- Meant to be layered under whatever serum or cream a routine already runs
Key actives
Niacinamidefifth on the list, tone and texture
Niacinamide is a tone and texture ingredient that shows up across most of VT's Reedle Shot line, doing brightening and surface-refining work rather than deep hydration. Listed fifth among the ingredients, it sits where the formula's own INCI order places its real weight in the mix.
Arginine15th on the list, pH balance, moisture support
Arginine is an amino acid that helps balance formula pH and supports the skin's own moisture-holding proteins. Listed 15th among the ingredients, it sits where the formula's own INCI order places its real weight in the mix.
Sodium Hyaluronate18th on the list, hydration
Sodium Hyaluronate is the salt form of hyaluronic acid, a lightweight humectant that draws and holds water at the skin's surface rather than sitting on top of it. Listed 18th among the ingredients, it sits where the formula's own INCI order places its real weight in the mix.
Squalane21st on the list, lightweight emollient
Squalane is a lightweight, non-greasy emollient that softens texture without leaving the heavy film a mineral oil would. Listed 21st among the ingredients, it sits where the formula's own INCI order places its real weight in the mix.
Adenosine23rd on the list, fine-line and texture smoothing
Adenosine is a Korean-formulation staple recognised for smoothing fine lines and texture, common enough in domestic Korean skincare to be treated as a routine inclusion rather than a headline. Listed 23rd among the ingredients, it sits where the formula's own INCI order places its real weight in the mix.
VT Cosmetics Vitamin C Astaxanthin Serum
What is the VT Cosmetics Vitamin C Astaxanthin Serum for?
It is a step zero booster ampoule in VT's Reedle Shot family, with Niacinamide listed fifth on the ingredient panel. The formula runs a centella-family and hydration base underneath, and it is meant to be used as a consistent step rather than a single fast fix.
What does the Vitamin C Astaxanthin Serum actually do for skin?
Arginine sits 15th on the list, close enough to the front that it is doing real work rather than trace-level formulation. Between Niacinamide at fifth and Arginine at 15th, this formula leans toward tone, texture and comfort together rather than a single narrow claim.
How and when should I use the Vitamin C Astaxanthin Serum?
Used as a step zero, it goes on right after cleansing and before serum, so it settles into the skin ahead of anything heavier rather than sitting on top of a finished routine. A small amount pressed in with clean hands is enough, morning or night, and there is no need to wait for it to fully dry before layering the next step.
Is the Vitamin C Astaxanthin Serum suitable for sensitive skin?
This formula's own ingredient list leans toward comfort and everyday tolerability rather than an aggressive exfoliating routine, so most skin types adjust to it without much fuss. A patch test on the inner arm is still the safer first step with any new formula.
How do I know this is the authentic Korean-market version?
This is the unit built for the Korean market, carrying its own Korean barcode 2900000000295 and its batch code intact on the box rather than relabeled for export. VT Cosmetics does not run a customer-facing verification portal of its own, so match the batch code on the box against the code printed on the unit itself, since the two are stamped separately and should agree.
- Ships from
- California
Duties are prepaid. Nothing is owed at delivery. Returns are accepted for 30 days, by mail.
Orders ship from our California warehouse, dispatched within 2 business days, and arrive in 3 to 5 days. Shipping is free on orders of $100 or more.
We split shipments free, so one out-of-stock item never holds up the rest of your order.
Where this unit came from
- 1Seoul
Bought as Korean-market stock - 2Customs
Duty paid by us before it enters the US - 3California
Ships domestically, no international leg
We stock the version of a formula that is sold in Korea, not the release a brand prepares for another market under the same name.
Every unit keeps its original barcode and batch code intact, so the unit in your hands can be checked against the brand’s own records.
Import duties are paid by us before the parcel reaches you, so nothing is owed at the door, and returns run for 30 days.
Every claim on this page traces to the unit in the box, the barcode, the batch code and the price you can read for yourself.
Payment and security
We accept
How to use
- Use it between toner and cream, morning or evening.
- A pump patted over the face rather than rubbed in.
- In the morning, sunscreen goes over the top as the last step.
- Do not use it alongside another tone serum; one of them is doing the work.
Worth knowing
- Anyone new to an ingredient on this formula's own list still does well to patch test on the inner arm before a first full application.
Reviews
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Write Reviews (opens in a new tab)VT Cosmetics, Korean-market original
Vitamin C Astaxanthin Serum, 30ml, authentic Korean-market VT Cosmetics formula.
Verify your unit when it arrives
Verify your unit when it arrives
Korean-market stock with the original barcode and batch code intact, exactly as it left Korea.
Match the batch code on the box against the code printed on the bottle or tube itself; the two are stamped separately and should agree.
On the unit itself
- The Korean-market barcode, unaltered from the retail package.
- The manufacturer’s batch code, exactly as the maker printed it.
정품Genuine article, Korean-market stock
What professionals say
What professionals say
What skin-care professionals say about the key actives in this formula, quoted from the medical sources linked beside each.
Hyaluronic acid helps bind water to collagen, which traps water in the skin. That helps make the skin more plump and full-looking.
Samantha Stein, PA-CDermatology physician assistant, Cleveland Clinic Squalane comes from a lipid that occurs naturally in your skin.
Alok Vij, MDDermatologist, Cleveland Clinic
1 more professional perspective
Niacinamide helps reduce the appearance of pores in a few ways. By strengthening the skin barrier and improving elasticity, pores appear less noticeable and more even.
Ashlyn YankeAesthetician, Cleveland Clinic
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