Last updated: September 2026. The following sources provide general background reading on the ingredient categories used in Vigor Jelly. Vigor Jelly is not affiliated with or endorsed by any of the institutions referenced below.
Tongkat Ali (Eurycoma Longifolia)
PubMed: Eurycoma Longifolia — a searchable database of peer-reviewed research.
Ashwagandha
PubMed: Ashwagandha and Stress — a searchable database of peer-reviewed research.
L-Arginine & Circulation
PubMed: L-Arginine and Nitric Oxide — a searchable database of peer-reviewed research.
Maca Root & Other Botanicals
NIH Office of Dietary Supplements — botanical and nutrient fact sheets.
A Note on These References
These references are provided as general background reading only. They do not constitute an endorsement of Vigor Jelly by any cited institution, and they should not be interpreted as clinical claims about the product itself. See our full disclaimer for more.
Contact
Questions about our ingredient sourcing or research? Email support@vigorjellyus.com.