Ingredient

Caffeine

Helps the look of puffiness, common in eye products.

What it does

Antioxidant · Reduces the look of puffiness

Evidence

Evidence: Limited · Mostly lab or early data so far.

Often chosen for

Dull, uneven-looking tone

Skin types

Dry, Oily, Combination, Normal

Typical amount

0.5-3% in a formula

Best time

Morning