Fish and Shellfish: Fish, especially those with skin, contain collagen, and shellfish are rich in minerals that help with collagen production. Eggs: Egg whites are packed with proline, an amino acid ...

L-lysine is an ingredient in Semenax that contributes to healthy sperm, although extensive research on the potential of lysine supplementation to enhance semen parameters is lacking. Catuaba bark ...

Hevesy György PhD School of Chemistry, ELTE Eötvös Loránd University, Faculty of Science, Institute of Chemistry, Pázmány Péter sétány 1/A, Budapest H-1117, Hungary ...