Nutrients
Connective tissue needs copper and L-lysine to grow, also vitamin is needed with the L-Lucien. It is important to know that L-arginine will compete with L-lysine for absorption, so if one is taking L-arginine, it is important to take L-lysine also.
Most people have plenty of copper, unless they are taking zinc. Copper competes with zinc, and taking too much zinc will cause a copper shortage.