The Brightening Serum vs Vitamin C Glow Drops — Ingredient Comparison

TATCHA

The Brightening Serum

Serum · 45 ingredients · Japan

The Brightening Serum from TATCHA is a visibly brightening and firming serum with 12-hour time-release vitamin C and ferulic acid that targets hyperpigmentation and reduces the look of post-acne marks.

Cruelty-free

Saint Jane

Vitamin C Glow Drops

Serum · 17 ingredients

This innovative, fresh-pressed brightening serum delivers radiant, glass skin. Vitamin C Glow Drops are a powerful resurfacer, each citrus-infused drop is packed with clean actives to transform dull complexions and leave your skin balanced and visibly smoother.

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How these two interact

No conflicts — safe to layer

Both are Serum products.

At a glance

Cruelty-free

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Price

$71.20

$18.80 less

$90

Key ingredients

L-Ascorbic Acid

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

Hyaluronic Acid

Holds water in the skin for instant plumping and hydration.

Green Tea

An antioxidant that calms inflammation and helps regulate oil.

Glycerin

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

Ferulic Acid

An antioxidant that stabilizes vitamins C and E and roughly doubles their sun defense.

Licorice Root

Brightens and soothes at once.

AHA

Citrus Aurantium Bergamia Peel Oil