Korean Vitamin C Serum | Orthotamin 15% Ampoule | 0.5 fl oz
Korean Vitamin C Serum by mommy care is a 0.5 fl oz (15 ml) dropper ampoule made in Korea with 15% pure L-ascorbic acid (150,000 ppm), ferulic acid, and glutathione for a brighter, more even-looking complexion.
What is the Orthotamin Vitamin C Ampoule?
Orthotamin Vitamin C Ampoule (오쏘타민 비타민C 앰플) is mommy care's concentrated vitamin C step: 15 ml of pure L-ascorbic acid at 150,000 ppm, supported by ferulic acid at 5,000 ppm and glutathione at 1,000 ppm, plus tocopherol and niacinamide. It is a thin, golden-amber fluid, not a gel, and it sinks in fast under moisturizer.
In Korea it sells through pharmacies rather than beauty counters, which is why the packaging looks more like a lab bottle than a cosmetic: dark amber glass, a pressure seal, and a separate dropper you attach yourself.
Korean formulators have leaned on vitamin C derivatives for years because pure ascorbic acid is unstable. mommy care went the other way — the real thing at 15%, kept fresh by amber glass, a pressure seal, and a fridge — and left the stabilizing to ferulic acid and vitamin E, the classic pairing.
Made in Korea, shipped from New Jersey
Product of Korea. The ampoule is made in Korea for mommy care, the skincare brand of Olive International (올리브인터내셔널), and what you receive is the Korean pharmacy-channel formula, not a separate export edition.
Kosbee buys it into US stock and ships sealed bottles from our own New Jersey warehouse within one business day — no overseas transit, and no weeks in a hot container for a product that prefers a fridge.
Key facts
- Brand
- mommy care (마미케어), Olive International (올리브인터내셔널), Korea
- Made in
- Korea
- Net content
- 0.5 fl oz (15 ml), amber glass bottle with a separate dropper cap
- Form
- Thin, water-light liquid ampoule, golden-amber in color, no added dye
- Vitamin C
- Pure L-ascorbic acid (ascorbic acid) at 150,000 ppm — 15% of the formula
- Supporting actives
- Ferulic acid 5,000 ppm, glutathione 1,000 ppm, tocopherol (vitamin E), niacinamide, biotin, panthenol, retinyl palmitate, zinc PCA
- When to use
- Once daily, morning or night, after toner and before moisturizer; sunscreen in the morning
- Storage
- Refrigerate before and after opening; keep out of heat and direct sunlight; use within 2 months of opening
How to use it
How do you use the Orthotamin vitamin C ampoule?
Do not shake the bottle before opening — pure vitamin C is sealed under pressure, and shaking can make it overflow. Twist off the cap, draw one dropperful with the included dropper, then screw the dropper on as the new cap.
On clean, dry skin after toner, spread one dropperful along the grain of the skin and pat until it is fully absorbed — it can transfer onto pillowcases or collars if left wet. Follow with moisturizer, and with sunscreen if it is morning. One dropper a day makes the 15 ml bottle last about a month.
Why do you keep vitamin C serum in the fridge?
Pure L-ascorbic acid oxidizes with heat, light, and air. Cold slows that down, so mommy care recommends refrigerating the bottle before and after opening and finishing it within two months. A darker, more orange color over time is oxidation, not contamination — the answer is a cooler shelf and a faster finish, not a return.
Before you use it
This is a 15% pure vitamin C product, so patch test on the inner forearm for a day before using it on your face, and start every other day if your skin is reactive. A brief tingle on application is common with L-ascorbic acid; stinging that lasts, redness, or swelling is not — stop and rinse.
Avoid the eye area and broken skin. If you use retinol or exfoliating acids, use this in the morning and those at night rather than layering them. Ask your doctor before use if you are pregnant or breastfeeding — the formula also lists retinyl palmitate, a vitamin A derivative.
Telling vitamin C serums apart
L-ascorbic acid vs vitamin C derivatives — what's the difference?
L-ascorbic acid is vitamin C itself; it is the form with the most research behind it and the one that needs the most protection from oxidation. Derivatives such as ascorbyl glucoside, ethyl ascorbic acid, and sodium ascorbyl phosphate are more stable and gentler, but the skin has to convert them first. This ampoule lists ascorbic acid at 150,000 ppm as its lead active, so you are getting the direct form, not a stand-in.
Is a Korean ampoule the same as a serum?
In Korean skincare an ampoule is a serum's more concentrated sibling — a smaller bottle with a higher dose of one active, used as a course rather than for decades. That is exactly this product: 15 ml, 15% vitamin C, a dropper instead of a pump, and a two-month use-by once opened. Use it where a serum goes in your routine.
Vitamin C ampoule vs Orthotamin vitamin C eye cream — which one?
The ampoule is for the face, not the eye area, and the eye cream is a cream with retinol built for the thin skin around the eyes. They are made to be used together: ampoule on the face in the morning, eye cream tapped around the orbital bone as your last step. If you only want one, choose by area rather than by ingredient.
Frequently asked questions
Is this Orthotamin vitamin C ampoule authentic and made in Korea?
Yes. It is the Korean pharmacy-channel formula, made in Korea for mommy care, the skincare brand of Olive International (올리브인터내셔널). Kosbee buys it into US stock and ships sealed 15 ml bottles from our own New Jersey warehouse rather than from overseas.
Why does the bottle hiss or fizz when I open it?
Pure vitamin C is sealed under pressure to keep it stable, so a small hiss or a little overflow at the neck on first opening is normal. Do not shake the bottle before opening, and draw one dropperful before you screw the dropper on. It does not mean the product is spoiled.
My vitamin C serum turned darker — is it still good?
A golden-amber color is how this ampoule looks new, because there is no added dye. If it turns noticeably darker or more orange over time, that is oxidation from heat, light, or air. Keep the bottle in the fridge, cap it quickly, and use it within two months of opening to keep it at its best.
L-ascorbic acid vs vitamin C derivatives — which is in this ampoule?
This ampoule uses pure L-ascorbic acid at 150,000 ppm (15%), the direct form of vitamin C, rather than a derivative such as ascorbyl glucoside or ethyl ascorbic acid. Derivatives are more stable and milder but need converting by the skin; pure ascorbic acid does not, which is why this formula asks you to refrigerate it.
Can I use this vitamin C ampoule with retinol?
Yes, but not in the same step. Use the ampoule in the morning under moisturizer and sunscreen, and keep retinol for the night. If your skin is reactive, alternate days at first. Patch test before the first use, and stop if stinging lasts or redness appears.
How fast does this Korean vitamin C serum ship?
It ships from Kosbee's New Jersey warehouse, typically within one business day, so most US addresses receive it in a few days rather than the weeks an overseas order can take. Each order is a sealed 0.5 fl oz (15 ml) bottle with the dropper included.
A sealed bottle, kept cool, shipped from the US
A 0.5 fl oz (15 ml) bottle of Orthotamin Vitamin C Ampoule, sourced by Kosbee and shipped from our New Jersey warehouse within one business day. Refrigerate it before and after opening, keep the dropper cap tight, and finish it within two months. See our return policy for unopened items.
Browse the rest of our K-Beauty collection, pair it with the Orthotamin Vitamin C Eye Cream for the eye area, or follow it with the Korean PDRN Cream as your moisturizing step.
For external use only. This is a cosmetic and is not intended to diagnose, treat, cure, or prevent any disease. Avoid the eye area and broken or irritated skin. Discontinue use if irritation occurs. Patch test recommended before first use. Keep out of reach of children.
