Advanced The Vitamin C 23 Serum with Super Vitamin E & Hyaluronic Acid vs Rapid Vitamin C Brightening Serum for Dark Spots + Post-Breakout Marks — Ingredient Comparison

COSRX

Advanced The Vitamin C 23 Serum with Super Vitamin E & Hyaluronic Acid

Serum · 34 ingredients · South Korea

COSRX Advanced The Vitamin C 23 Serum returns renewed with improved stability and a gentler, smoother texture. Brightens dark spots and boosts radiance with concentrated 23% vitamin C.

innisfree

Rapid Vitamin C Brightening Serum for Dark Spots + Post-Breakout Marks

Serum · 30 ingredients

A brightening serum formulated to fade dark spots and post-breakout marks while evening overall skin tone. Vitamin C, Vitamin E, and ferulic acid work together as antioxidants to brighten and help diminish discoloration, while niacinamide and tangerine peel extract further refine and even the complexion. A green tea-derived enzyme gently exfoliates to smooth the look of skin texture. Non-comedogenic and suitable for sensitive skin, it's a strong fit for those dealing with uneven tone or texture.

Vegan

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How these two interact

No conflicts — safe to layer

Both are Serum products.

At a glance

Vegan

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Price

$20

$12 less

$32

Key ingredients

L-Ascorbic Acid

A form of vitamin C — an antioxidant that brightens, fades dark spots, and supports collagen.

Niacinamide

Strengthens the barrier, controls oil, and fades dark spots — gentle and plays well with almost everything.

Hyaluronic Acid

Holds water in the skin for instant plumping and hydration.

Squalane

A lightweight, biomimetic oil that softens without clogging pores — pairs perfectly with strong actives to offset dryness.

Vitamin E

An antioxidant that protects the barrier and supercharges vitamin C.

Ascorbic Acid(23%)

A form of vitamin C — an antioxidant that brightens, fades dark spots, and supports collagen.

Panthenol (B5)

A barrier-repairing humectant that hydrates and calms — a sensitive-skin staple.

Caffeine

An antioxidant that temporarily de-puffs and tightens — popular around the eyes.

Glutathione

An antioxidant brightener that supports a more even tone.

Adenosine

A cell-signaling ingredient that smooths fine lines and supports firmer skin.

Allantoin

Calms redness and smooths texture — buffers harsh actives beautifully.

Elaeis Guineensis (Palm) Oil

A nourishing plant oil that softens skin and helps seal in moisture.

Helianthus Annuus (Sunflower) Seed Oil

A nourishing plant oil that softens skin and helps seal in moisture.

Licorice Root

Brightens and soothes at once.

Carthamus Tinctorius (Safflower) Seed Oil

A nourishing plant oil that softens skin and helps seal in moisture.

Camellia Japonica Seed Oil

A nourishing plant oil that softens skin and helps seal in moisture.

Glycerin

The workhorse humectant — simple, effective, and exceptionally well-tolerated.

L-Ascorbic Acid

A form of vitamin C — an antioxidant that brightens, fades dark spots, and supports collagen.

Squalane

A lightweight, biomimetic oil that softens without clogging pores — pairs perfectly with strong actives to offset dryness.

Helianthus Annuus (Sunflower) Seed Oil

A nourishing plant oil that softens skin and helps seal in moisture.

Gluconolactone (PHA)

A gentle, large-molecule exfoliant that smooths and hydrates — ideal for sensitive skin.

Panthenol (B5)

A barrier-repairing humectant that hydrates and calms — a sensitive-skin staple.

Niacinamide

Strengthens the barrier, controls oil, and fades dark spots — gentle and plays well with almost everything.

Allantoin

Calms redness and smooths texture — buffers harsh actives beautifully.

Hyaluronic Acid

Holds water in the skin for instant plumping and hydration.

Vitamin E

An antioxidant that protects the barrier and supercharges vitamin C.

Centella

Calms inflammation and speeds barrier recovery.

What it targets

Hydration

Barrier

Brightening

Anti-aging

Firmness

Texture

Pores

Oil control

Soothing

Antioxidant

Hydration

Barrier

Brightening

Anti-aging

Texture

Pores

Oil control

Soothing

Antioxidant