Caffeine 1%

Summary

A methylxanthine used in our eye formula for the look of puffiness. The review we cite describes caffeine in skin products in general and does not test it around the eye.

Awakening in the formula

Caffeine 1% sits in our formulas for one job: easing the look of puffiness. We file it under De-Puffing in this glossary for the job we use it for, and the evidence section below says how far its source goes.

Awakening in the eye contour

The mechanism is the one stated in the summary above, and we have deliberately not extended it. Where a supplier or a competitor would reach for a bigger promise, the sentence we publish stops where the research stops.

Awakening in the evidence

Our source is a peer reviewed review of caffeine in cosmetics, recorded as Herman 2013 PMID 23075568. You can read it yourself at PubMed 23075568. Its summary describes caffeine's uses in skin products in general and does not mention the eye area or puffiness, so we grade it as background on the ingredient rather than a test of it.

Awakening and its limits

The research behind Caffeine 1% studies the ingredient, not the finished Opuliss product it sits in. It is not a trial of our formula, and we will not present it as one.

Cosmetic claims describe how skin looks and feels. Nothing here is a medical claim, and nothing here treats a condition.