brightening
Vitamin C · 비타민 C
INCI: Ascorbic Acid
Also known as: L-Ascorbic Acid · Pure Vitamin C · Ascorbyl Glucoside · Ethyl Ascorbic Acid · 비타민C
What it is
Vitamin C in cosmetics most often appears as L-ascorbic acid (pure form, potent but unstable) or as more stable derivatives (Ascorbyl Glucoside, Ethyl Ascorbic Acid, MAP, SAP, THDA). It is the most-studied topical antioxidant for tone-evening, defense against environmental damage, and collagen-support claims. Formulation pH and packaging matter — opaque, airless, or amber bottles are common.
한국어 설명
화장품의 비타민 C는 가장 강력하지만 불안정한 순수형 L-아스코르브산, 또는 더 안정적인 유도체(아스코르빌 글루코사이드, 에틸 아스코르빌, MAP, SAP, THDA) 형태로 들어간다. 톤 외관 개선·환경 스트레스 방어·콜라겐 지원 클레임의 가장 많이 연구된 외용 항산화제다. 포뮬러 pH와 포장(불투명·에어리스·앰버) 관리가 중요하다.
Best for
- uneven tone
- dullness
- environmental damage
- early aging signs
Pairs well with
- Vitamin E
- Ferulic Acid
- Hyaluronic Acid
- Niacinamide
Products with Vitamin C (217)
Catalog matches ranked by data completeness and reviews.
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SKIN1004SKIN1004 Lab in Nature Niacinamide 10 Boosting Shot Ampoule 30ml -
Dr.AltheaDr.Althea Vitamin C Boosting Serum 30ml -
KWAILNARAKWAILNARA Rice Milk Body Cleanser 560g -
numbuzinnumbuzin No.5+ Glutathione Vitamin Concentrated Toner 200ml -
Round LabROUND LAB Birch Juice Hand Cream 30ml -
Centellian24Centellian24 Expert Madeca Cream Active Renew PDRN 50ml -
Dear, KlairsDear, Klairs Vitamin PDRN Bouncy Pore Serum 35ml -
VTVT Reedle Shot Ex Vitamin Modeling Pack 25g -
Dear, KlairsDear, Klairs Freshly Juiced Vitamin Essence Toner 180ml -
ArenciaArencia Red Smoothie Serum 30 50g -
AnuaAnua Rice 70 Glow Milky Toner 250ml -
TIA'MTIAM Vitamin C24 Surprise Serum 30ml -
Mary & MayMary&May Tranexamic Acid+Glutathion eye cream 30ml -
I'M FROMI'm from Apricot Dark Spot Drop Ampoule 50ml -
Round LabROUND LAB Birch Juice Moisturizing Cleanser 150ml -
BY JUCCYBY JUCCY Pomegranate Collagen Glow and Lift Wrapping Mask 70ml -
Round LabROUND LAB Birch Juice Moisturizing Tone-Up Sunscreen 50ml (23AD) -
MISSHAMISSHA Vita C Plus Spot Correcting & Firming Ampoule 30ml -
KWAILNARAKWAILNARA Strawberry Milk Lip Balm 10ml -
VTVT Cica Vital Sleeping Mask 4ml x 6ea -
NINELESSNINELESS B-Boost 10% Niacinamide Serum 30ml -
Haruharuharuharu wonder Centella 4% TXA Dark Spot Go Away Serum 30ml -
AbibAbib Glutathiosome Dark Spot Serum Vita Drop 50ml -
TFITTFIT Cover Up Pro Concealer 15g
Related answer guides
- Best Korean Products for Dark Spots and Pigmentation The best Korean products for dark spots use vitamin C, niacinamide, tranexamic acid, alpha arbutin, and glutathione, but daily sunscreen matters most.
- Best Korean Skincare for Mature Skin (40s and 50s) A practical guide to Korean skincare for mature skin (40s/50s), covering barrier cleansers, tone-care serums, and gentle routines for dryness and redness.
- Niacinamide vs Tranexamic Acid for Korean Brightening Niacinamide vs tranexamic acid: niacinamide is the gentle all-rounder for even tone, tranexamic acid targets stubborn spots, and both work well together.
External references
- Ascorbic Acid (Explained + Products)
Specific cosmetic ingredient page for vitamin C/ascorbic acid.
- Vitamin C | Skin Care Ingredient Dictionary | Paula's Choice
Adds consumer-facing brightening and antioxidant context.
- Vitamin C
Adds independent vitamin and biochemical background.
We do not republish proprietary ingredient databases. Public references above are good starting points for verification — treat this page's structured description as our editorial summary, not a primary regulatory source.
Educational summary for skincare shoppers. Not medical advice. For pregnancy, treatment-related, or condition-specific decisions, consult a qualified clinician.