The Vitamin C 23 Serum
- Cruelty free
A strong 23% vitamin C serum for experienced users who want brighter skin.
- Regular price
- €24,95
- Regular price
-
- Sale price
- €24,95
- Order before 23:00, shipped today
- 100% authentic, EU registered
- 30-day returns
- Skin advice from real people
Complete your routine
Description
A highly concentrated serum with 23% pure L-ascorbic acid to visibly brighten, even skin tone, and protect against environmental stressors and free radicals. Hyaluronic acid, tocotrienols, and allantoin hydrate and soothe, making this potent formula suitable for all skin types. Always pair with SPF during the day.
Ingredients
Good to know
Every skin is different: do a patch test before first use. Brands sometimes update their formulas, so the ingredient list on your package is always leading.
Shipping and returns
About COSRX
COSRX was founded to provide effective skincare solutions for real skin concerns. Its name combines "Cosmetics" and "RX" (prescription), reflecting the brand's commitment to targeted, ingredient-focused formulations that deliver visible results without unnecessary complexity.
The formula
Why it works
Vitamin CAn antioxidant that helps brighten dull skin and fade the look of dark spots over time.
SqualaneA light, skin-identical oil that softens and keeps moisture in without feeling heavy.
Hyaluronic acidBinds water to the skin, so it feels soft and comfortable instead of tight.
PanthenolPro-vitamin B5. Soothes and helps the skin barrier recover.
In your routine
How to use
- WhenMorning and evening
- WhereAfter toner, before moisturizer
- How muchTwo to three drops
- In the morning, after cleansing, shake the bottle lightly.
- Apply a few drops and massage in from the centre of the face outwards.
- Follow with moisturizer and sunscreen.
Tip. 23% pure vitamin C can tingle. Patch test first, start every other day and keep the cap tightly closed.
Complete your routine
Even tone routine
-
01
Cleanse
Advanced Snail Mucin Power Gel Cleanser
€17,45
-
04
Treat
The Vitamin C 23 Serum
€24,95
-
06
Moisturize
Green Tangerine Vita C Dark Spot Care Cream
€24,95
Good to know
Three questions we hear
Why does it tingle?
Pure vitamin C works at a low pH, which can tingle briefly. Stinging that does not settle means use it less often.
Morning or evening?
Morning is ideal, under your sunscreen. Always follow with SPF.
What if it changes colour?
Pure vitamin C oxidises and darkens over time. Store it cool and closed, and use it within a few months of opening.
