A Drop of Seoul

Brightening · Antioxidant · Anti-Aging

Vitamin C

Ascorbic Acid · L-Ascorbic Acid · Ascorbate

A classic antioxidant and brightening active used for glow, tone, and environmental support.

Good for

  • Normal
  • Combination
  • Oily
  • Dry

Targets

  • Dullness
  • Hyperpigmentation
  • Aging
  • Texture

What it is

Vitamin C is a family of brightening antioxidant ingredients. Pure ascorbic acid is the most famous, while Korean products also use gentler derivatives in toners, ampoules, creams, and masks.

What it does

It helps skin look brighter and more even while adding antioxidant support against daily environmental stress. With consistent use, it can soften the look of dullness and post-blemish discoloration.

How to use it

Many people use vitamin C in the morning before sunscreen. Start a few times a week if you are new to it, and store unstable formulas away from heat and light.

Good to know

Pure ascorbic acid can sting and oxidize easily. Sensitive skin may prefer lower strengths or gentler vitamin C derivatives.

Keep exploring

Build the next layer.

Use this ingredient as a starting point, then compare it with nearby actives, your routine, and product guides before you buy anything.