Rambutan peel (the fruit's outer skin, normally discarded) contains phenolic compounds with potential anti-inflammatory, antioxidant, and antimicrobial properties. The study reviewed how different extraction methods—from simple soaking to advanced techniques like ultrasonic extraction—affect the potency of these compounds. However, the researchers were clear that human studies are still needed; most evidence so far is from lab and animal tests, not people.

This was a literature review, meaning researchers analyzed existing studies on rambutan peel rather than conducting new experiments. They examined drying methods, extraction techniques, chemical composition, and safety data across published research.

Funding not disclosed in abstract