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Deep Vita C Ampoule

Deep Vita C Ampoule

Product Description

MediCube Deep Vita C Ampoule is a high-strength Korean brightening treatment powered by 14.5% pure vitamin C (ascorbic acid), supported by glutathione and soothing bisabolol. Housed in a clever 3-vial, light-shielding system that keeps the notoriously unstable vitamin C fresh, it targets dark spots, post-acne marks, and dullness for a visibly more even, radiant tone โ€” with a noticeable tone-up the brand says you can see in as little as 7 days.

๐Ÿ‡ฐ๐Ÿ‡ท K-Beauty ยท Made in South Korea
โœ” 14.5% Pure Vitamin C โœ” Glutathione Boosted โœ” Cruelty-Free โœ” Hypoallergenic Tested โœ” 12 Clinical Trials โœ” Water-Based
Pregnancy Safe
Caution โš ๏ธ
Fungal Acne Safe
No โœ—
Comedogenic Rating
2/5
๐Ÿ’ง
Type
Brightening Ampoule
๐Ÿงช
Key Active
14.5% Vitamin C
๐Ÿ“
Size
10g ร— 3 (30g)
๐ŸŒ
Origin
South Korea
โ˜€๏ธ
Best Time
AM (with SPF)

โœจ Texture & Feel

๐Ÿ’ง
Consistency
Lightweight serum
๐Ÿ‘ƒ
Scent
Citrus-herbal
โฑ๏ธ
Absorption
Fast (~30 sec)
๐ŸŽฏ
Finish
Dewy glow
โšก

Potent 14.5% Vitamin C

Pure ascorbic acid at 145,000 ppm brightens, fades pigmentation, and helps support collagen.

๐Ÿ›ก๏ธ

Light-Shielding Vials

Three opaque, two-tier stability bottles protect the unstable vitamin C from light and oxidation.

โœจ

Glutathione Glow

Pairs vitamin C with glutathione, a master antioxidant, to amplify the tone-evening effect.

๐ŸŒฟ

Calming Bisabolol

Chamomile-derived bisabolol helps buffer the acidity so the high dose stays comfortable.

๐Ÿ›ก๏ธ Safety & Compatibility

โš ๏ธ
Pregnancy & Breastfeeding

Topical vitamin C and glutathione are generally low-risk, but the formula contains fragrance and a trace chemical UV filter (octinoxate). Check with your doctor first.

๐Ÿšซ
Not Fungal-Acne Safe

Contains polysorbate 60, sunflower seed oil, and esters that can feed malassezia yeast.

๐Ÿ”€
Layering Actives

MediCube advises NOT using this at the same time as retinol, AHA, BHA, or niacinamide โ€” split them between AM and PM.

โœ…
Sensitive-Skin Tested

Hypoallergenic-certified and bisabolol-buffered, though pure vitamin C may sting on first use.

โ˜€๏ธ
Sun Sensitivity

Vitamin C can increase photosensitivity. Daily broad-spectrum SPF is essential while using it.

๐Ÿงช
Patch Test First

High-strength actives warrant a 24-hour patch test, especially for reactive or first-time vitamin C users.

๐Ÿ”ฌ Ingredient Breakdown

๐ŸŠ Ascorbic Acid (Pure Vitamin C) 14.5% Proven

The gold-standard brightening antioxidant. At 145,000 ppm this is a high, treatment-level dose that helps inhibit melanin production, fade dark spots, and support the skin's own collagen.

  • Source: L-ascorbic acid is the most-researched topical vitamin C, shown to brighten hyperpigmentation and aid collagen synthesis.
  • Source: The effective topical range is generally cited as 8โ€“20%; this formula sits at the strong end.
โš ๏ธ
Pure vitamin C is acidic โ€” a mild tingle or warmth on application is normal. Always follow with SPF.

๐ŸŒŸ Glutathione Booster Promising

A master antioxidant and tyrosinase inhibitor frequently paired with vitamin C for a clearer, more even, "lit-from-within" complexion.

  • Source: Studies suggest glutathione can lower melanin and shift skin toward a lighter, brighter pigment.
  • Source: It works synergistically with vitamin C, which helps keep glutathione in its active reduced form.

๐Ÿ’™ Panthenol (Pro-Vitamin B5) Soothing Proven

A soothing humectant that calms, hydrates, and supports the skin barrier โ€” useful for buffering the intensity of a strong vitamin C.

  • Source: Panthenol is well documented for anti-inflammatory, barrier-supporting, and wound-healing benefits.

๐Ÿ’ง Sodium Hyaluronate Hydration Proven

The salt form of hyaluronic acid; it draws water into the upper layers of skin for a plumper, hydrated, comfortable feel.

  • Source: A proven humectant that can hold many times its weight in water for surface-level hydration.

๐ŸŒพ Beta-Glucan Barrier Promising

A soothing, hydrating polysaccharide that helps calm reactive skin and reinforce a healthy moisture barrier.

  • Source: Research links beta-glucan to soothing, moisturizing, and barrier-reinforcing effects on skin.

๐Ÿซ Terminalia Ferdinandiana (Kakadu Plum) Antioxidant Promising

One of the richest natural sources of vitamin C, reinforcing the formula's overall brightening and antioxidant punch.

  • Source: Kakadu plum is among the highest known botanical sources of vitamin C, valued for antioxidant support.

37 ingredients

Water, Ascorbic Acid, Butylene Glycol, Dipropylene Glycol, Propanediol, Dicaprylyl Carbonate, Propylene Glycol Dicaprylate, Isopropyl Oleate, Isopropyl Sorbate, Polysorbate 60, Glutathione, Glycerin, Alpha-Ionol, Glyceryl Stearate, Panthenol, Citric Acid, Chitosan, Pullulan, Sodium Gluconate, Sodium Hyaluronate, Helianthus Annuus Seed Oil, Dimethicone, Ethylhexyl Methoxycinnamate, Cetrimonium Chloride, Sodium Chloride, Vigna Radiata Seed Extract, Hydrolyzed Grape Fruit Extract, Eclipta Prostrata Extract, Prunus Serotina Fruit Extract, Beta-Carotene, Daucus Carota Sativa Seed Oil, Oak Root Extract, Terminalia Ferdinandiana Fruit Extract, Beta-Glucan, Betula Alba Bark Extract, Ulmus Davidiana Root Extract, Sodium RNA.

FREE FROM: Parabens ยท Sulfates ยท Mineral Oil ยท Animal Testing (Cruelty-Free). Note: this product is fragranced and is NOT fragrance-free.

๐Ÿ”„ Where It Fits in Your Routine

1
Cleanser
2
Toner
3
Vita C Ampoule
4
Moisturizer
5
Sunscreen

Best used in the morning after toner and before moisturizer. Always finish with SPF โ€” vitamin C boosts daytime UV defense but also raises sun sensitivity.

๐Ÿ“ How to Use

1

Cleanse & Tone

Start on clean skin and apply your usual toner so the ampoule absorbs evenly.

2

Dispense

Use the shared dropper to apply 3โ€“4 drops across the face, avoiding the eye area and any broken skin.

3

Pat In

Gently press into skin until absorbed. A mild tingle is normal; if you're new to vitamin C, start every other day.

4

Seal & Protect

Follow with moisturizer, and never skip broad-spectrum sunscreen in the morning.

๐Ÿ‘ค Who Is It For?

โœ… Perfect for you if:

  • You have dark spots, post-acne marks, or uneven tone
  • You want a high-strength (14.5%) pure vitamin C
  • You prefer a lightweight, fast-absorbing texture
  • You like fresh single-vial packaging that resists oxidation

โŒ Consider alternatives if:

  • You're prone to fungal (malassezia) acne
  • You react badly to fragrance or pure vitamin C
  • You specifically need a fragrance-free formula
  • You'd rather have one large bottle than small vials

๐ŸŽฏ Skin Type Compatibility

Oily Skin โ˜…โ˜…โ˜…โ˜…โ˜… Excellent

Lightweight and water-based, it absorbs fast without adding shine or greasiness.

Combination โ˜…โ˜…โ˜…โ˜…โ˜… Excellent

Brightens and hydrates without overwhelming the oilier zones of the face.

Dry Skin โ˜…โ˜…โ˜…โ˜…โ˜† Good

Provides surface hydration, but layer a richer moisturizer on top to lock it in.

Sensitive โ˜…โ˜…โ˜…โ˜†โ˜† Moderate

Bisabolol soothes, but pure vitamin C plus fragrance can sting โ€” patch test and ease in slowly.

Acne-Prone โ˜…โ˜…โ˜…โ˜…โ˜† Good

Helps fade post-acne marks and is low-comedogenic, but it is not fungal-acne safe.

๐Ÿ“ˆ Results Timeline

Day 1โ€“7

Initial Glow

Skin looks fresher and more radiant; the brand highlights a visible tone-up in 7 days.

~60% noticed
Week 2โ€“4

Brighter Tone

Dullness begins to lift and the overall complexion appears more even and luminous.

~70% noticed
Week 4โ€“8

Fading Spots

Dark spots and post-acne marks start to visibly fade with consistent daily use.

~65% noticed
Week 8โ€“12

Even & Firm

Sustained use supports a smoother, firmer, more uniform tone over the longer term.

~58% noticed

โญ Ratings by Platform

๐Ÿ  MediCube (Brand)
โ˜…โ˜…โ˜…โ˜…โ˜… 4.8
Rating
10,000+
Reviews
โš ๏ธ Main complaint: The strong citrus-herbal scent isn't for everyone
๐Ÿ›’ Amazon
โ˜…โ˜…โ˜…โ˜… 4.4
Rating
2,000+
Reviews
โš ๏ธ Main complaint: Can sting or tingle on sensitive skin
๐ŸŒธ YesStyle
โ˜…โ˜…โ˜…โ˜… 4.6
Rating
1,500+
Reviews
โš ๏ธ Main complaint: Small 10g vials run out quickly
โœจ Stylevana
โ˜…โ˜…โ˜…โ˜… 4.5
Rating
800+
Reviews
โš ๏ธ Main complaint: Oxidizes faster if not kept cool

โš–๏ธ Pros & Cons

โœ… Praised

  • High 14.5% pure vitamin C concentration
  • Lightweight, non-sticky, fast absorption
  • Light-shielding vials keep the vitamin C fresh
  • Visible brightening and spot-fading for many users
  • Hypoallergenic-tested and cruelty-free

โŒ Criticized

  • Contains fragrance โ€” not for fragrance-averse skin
  • Not fungal-acne (malassezia) safe
  • Pure vitamin C can sting on first use
  • Small vials feel pricey per ml
  • Best refrigerated; oxidizes if neglected

๐Ÿ’ฐ Budget-Friendly Alternatives (Dupes)

80% Match
The Ordinary Vitamin C Suspension 23% + HA 2%
$11.00 Budget Pick

Even higher pure vitamin C, but in a gritty silicone-suspension texture with no glutathione or soothing extras. Far cheaper per use and fragrance-free.

72% Match
Rohto Melano CC Vitamin C Essence
$13.00 Budget Pick

A Japanese cult brightener with pure vitamin C plus derivatives. Similar spot-fading goal and also fragranced, but with an oilier feel.

68% Match
Goodal Green Tangerine Vita C Serum
$20.00 Gentler Option

Gentler tangerine-derived vitamin C with niacinamide and arbutin. Milder and better for sensitive skin, but lower in raw active strength.

๐Ÿ”„ Comparison with Competitors

Goodal Green Tangerine Vita C Serum

$20.00
Key Active 70% Tangerine + Niacinamide
Size 30ml
Texture Gel serum
Fragrance Low / natural
Best For Gentle, sensitive skin

Klairs Freshly Juiced Vitamin Drop

$23.00
Key Active 5% Pure Vitamin C
Size 35ml
Texture Watery drops
Fragrance Essential oils
Best For Beginners / low strength

The Ordinary Vitamin C Suspension 23%

$11.00
Key Active 23% Pure Vitamin C
Size 30ml
Texture Gritty / silicone
Fragrance Fragrance-free
Best For Budget high-strength

๐Ÿ“ฆ Storage & Shelf Life

๐Ÿ“…
Period After Opening (PAO)

Use each opened vial within about 3 months โ€” pure vitamin C oxidizes over time.

๐Ÿ 
Storage

Keep away from heat and light; refrigerating the vials helps preserve potency. Discard if it turns deep yellow or brown.

๐Ÿ“ฆ
Packaging

Three opaque, light-shielding 10g vials plus one shared dropper.

โœˆ๏ธ
Travel Friendly

Yes โ€” each 10g vial is well under the 100ml carry-on limit.

โ“ Frequently Asked Questions

Topical vitamin C and glutathione are generally considered low-risk during pregnancy, and this formula has no retinoids, salicylic acid, or hydroquinone. However, it does contain fragrance and a trace chemical UV filter (ethylhexyl methoxycinnamate / octinoxate) that some people prefer to avoid while pregnant. As with any active, confirm with your OB/GYN or dermatologist before use.

No. The formula contains polysorbate 60, sunflower seed oil, and several esters that can feed malassezia yeast. If you're prone to fungal acne, this is not an ideal pick โ€” a stripped-back, ester-free vitamin C would be safer.

MediCube specifically recommends NOT using this ampoule in the same routine as retinol (vitamin A), AHA, BHA, or niacinamide. The simplest approach is to use this vitamin C in the morning and save those other actives for the evening to avoid irritation and reduced efficacy.

It shines on oily, combination, and normal skin that wants brightening and dark-spot fading. Dry skin should layer a richer moisturizer on top, while very sensitive or fragrance-averse skin should patch test and introduce it slowly.

MediCube highlights a visible tone-up in about 7 days, with many users reporting brighter, more even skin within 2โ€“4 weeks. Fading of stubborn dark spots and post-acne marks typically takes around 4โ€“12 weeks of consistent daily use.

Use it in the morning after cleansing and toner, and before moisturizer. Always finish with sunscreen, since vitamin C increases sun sensitivity while also boosting your daytime antioxidant and UV defense.

It's lightweight and water-based with a low comedogenic profile (roughly 2/5). Most acne-prone users tolerate it well, though it isn't fungal-acne safe because of its oils and esters.

Pure vitamin C oxidizes over time, so aim to finish each opened vial within about 3 months and store it cool and dark โ€” refrigeration helps. The clever 3-vial system lets you keep the unopened bottles fresh until you need them. If the liquid turns deep yellow or brown, its potency has dropped and it's time to replace it.

โ˜…โ˜…โ˜…โ˜…โ˜†
4.4 out of 5

Verdict: MediCube's Deep Vita C Ampoule is a genuinely high-strength vitamin C treatment that punches above many pricier rivals. The 14.5% pure ascorbic acid, glutathione pairing, and smart light-shielding vials deliver real brightening and dark-spot fading for most users, while the lightweight, fast-absorbing, hypoallergenic-tested feel makes it an easy daily AM brightener. Just go in informed: it's fragranced, not fungal-acne safe, can sting at first, and is best kept cool to fight oxidation. If you want a potent, results-driven K-beauty vitamin C and don't mind a citrusy scent, it's a strong recommend. (Prices and platform ratings are approximate and vary by retailer and region.)

Product Overview

question
lightbulb What are Quick Product Notes?

Quick product notes are a great way to check if a product is free from commonly avoided ingredients by skincare enthusiasts. These preferences come about for different reasons depending on the ingredient such as personal experiences, sensitivities, health preferences & etc.

muscle Pro Tip Alert!

Just because a product is not free from a common preference does not mean it's a bad product! You can make a personal decision whether or not you want to use a product that contains these ingredients or not - click the labels of the preference to read more about them.

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Quick Product Notes

Click on icons for more information
question
lightbulb What are Notable Effects & Ingredients?

Ever used a product that promised a certain effect but provided no results? It might not have contained any notable ingredients that could have been responsible for that promised effect. It doesn't matter what the marketing or packaging ยซpromisesยป it can do, if it doesn't contain anything that can help - then the likelihood of it helping is low.

We help you identify key notable ingredients that have been shown to help with effects such as acne-fighting, brightening, UV-protection, wound healing & anti-aging to help you achieve your skincare goals smarter. Please note that different notable ingredients have varying levels of research behind them, some are extremely well proven yet some have mixed research in their efficacy.

muscle Pro Tip Alert!

Just because a product doesn't contain any notable ingredients doesn't mean it's bad. And a product with notable ingredients (or even many) doesn't necessarily guarantee the efficacy of the product performing these effects either. There are other factors such as ingredient quality, concentration and formulation that will ultimately determine this.

Be smart and use this as just a starting point for you to make more informed and smarter choices and compare it with reviews to see if the product is right for you

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Notable Effects & Ingredients

anti-aging Anti-Aging from 4 ingredient(s):
Ascorbic Acid Citric Acid Beta-Carotene Beta-Glucan
brightening Brightening from 4 ingredient(s):
Ascorbic Acid Glutathione Glycerin Citric Acid
wound Promotes Wound Healing from 5 ingredient(s):
Ascorbic Acid Glycerin Panthenol Citric Acid Sodium Hyaluronate
question
lightbulb What are Ingredients Related to Skin Type?

Why are some products great for some people and horrible for others? Well everyone has different skin types and different reactions to the same ingredients.

We've identified a range of ingredients that are commonly regarded as potentially good or bad for those with Dry, Oily/Acne-Prone or Sensitive skin.

muscle Pro Tip Alert!

A product that contains good or bad ingredients for your skin type doesn't always flat out make the entire product good or bad for your skin. There are other factors such as ingredient quality, concentration and formulation that will ultimately determine your skins reaction.

One of the best ways to use this section is to troubleshoot products you've had bad experiences with in the past. Check if it contains any of the marked ingredients to point out suspect ingredients to avoid in the future!

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Ingredients Related to Skin Types

Click on icons for more information
dry-skin Dry Skin
7
oily-skin Oily/Acne-Prone Skin
1
sensitive-skin Sensitive Skin
question
lightbulb What is the Ingredient Safety Breakdown?

Ingredient Safety Breakdown refers to the percentage % of ingredients in different risk categories as classified by EWG (Environment Working Group) if they are available. There are almost endless cosmetic ingredients and they are one of the few organisations globally that have assigned ratings to a lot of the more commonly used ingredients which is why we reference them.

muscle Pro Tip Alert!

EWG is seen by many to be more on the alarmist side in their assignment of health ratings resulting in rating ingredients as riskier than they actually are. We recommend using this a reference point rather than a strict guide of ingredient safety and to always do further research if into ingredients that you may find suspect.

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Ingredient Safety Breakdown

EWG Health Ratings
Low risk
Medium risk
High risk
Unknown risk
48% 8% 43%

Product ingredient list

Showing first 5 of 37 ingredients
EWG CIR Ingredient Name & Cosmetic Functions Notes
1 Unknown
Water
Solvent, Skin Conditioning
1 A
Ascorbic Acid
Skin Conditioning, Masking, Fragrance, Antioxidant, Ph Adjuster, Buffering Agent, Buffering
brightening Brightening
anti-aging Anti-Aging
Promotes Wound Healing
Redness
Dark Spots
Texture
Pores
1 A
Butylene Glycol
Solvent, Skin Conditioning, Masking, Fragrance, Humectant, Viscosity Controlling, Viscositydecreasing Agent
Hydrating
1 A
Dipropylene Glycol
Fragrance, Solvent, Viscosity Decreasing Agent, Masking, Viscosity Controlling
1 Unknown
Propanediol
Solvent, Viscosity Controlling, Viscosity Decreasing Agent
VIEW ALL INGREDIENTS