Lutein vs Zeaxanthin: What’s the Difference?

Compare lutein and zeaxanthin, two carotenoids found in the retina and commonly paired in eye supplements.

Lutein and zeaxanthin are related carotenoids, not interchangeable marketing synonyms. They occur together in many foods and supplements and were paired in AREDS2.

What they share

Both are plant-derived carotenoids that accumulate in ocular tissues. Their frequent pairing reflects both biology and the research history of eye nutrition.

What shoppers should compare

Look for the amount of each nutrient, the rest of the formulation and the population behind any cited study. Avoid treating a single ingredient match as proof of product equivalence.