How safe is it?

Product Description

KIehl's Midnight Recovery Concentrate 30ml - A replenishing nighttime facial oil with distilled botanicals that visibly restores the appearance of skin by morning. - Regenerates, repairs, and replenishes skin for smoother, healthier skin - Works with the skin's natural nocturnal activity - when skin is most receptive to repairing itself from daily aggressors - to dramatically restore skin.

Hang tight. We're thinking.