Ascorbic Acid (Vitamin C)
Also known as: Vitamin C, L-Ascorbic Acid, INCI: Ascorbic Acid
Pure vitamin C that brightens skin, boosts collagen, and neutralizes free radical damage.
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Get the appWhat it does
Ascorbic acid is a potent antioxidant that neutralizes free radicals and brightens the complexion by inhibiting melanin production. It stimulates collagen synthesis, improving skin firmness and texture. Due to its instability and low pH requirement (pH 2.5-3.5), it must be properly formulated to be effective.
Benefits
- Powerful brightening and dark spot reduction
- Boosts collagen production for firmer, plumper skin
- Protects against environmental oxidative stress
- Improves overall skin radiance and luminosity
- Enhances photostability of sunscreen
Who it suits
- All skin types, especially dull, tired, or pigmented skin
- Those seeking anti-aging and brightening benefits
- Sun-damaged or uneven-toned complexions
How to use
Apply a few drops of stabilized ascorbic acid serum to clean, dry skin before moisturizer; use once daily (AM preferred) as it boosts sun protection. Follow with SPF, as vitamin C increases photosensitivity.
Pairs well with
Vitamin E (synergistic antioxidant protection), Ferulic acid (stabilizes and boosts efficacy), Broad-spectrum sunscreen, Hyaluronic acid (hydration support)
Be careful pairing with
Niacinamide (can cause flushing in very high concentrations), Retinoids (may increase irritation; use on alternate days)
Safety & cautions
Pure ascorbic acid is unstable, easily oxidizes, and has a very low pH that may irritate sensitive skin; it requires careful formulation and storage away from light and air. Start with lower concentrations (10-15%) to assess tolerance.
Educational information, not medical advice. Concentration and formulation change how an ingredient behaves.