Savage Nature
Unlike the Unending One's power-up, Cynthia did not show any difficulties. This was not a surprise to Ves as the life-attributed energy derived from the serum possessed a property that made it universally compatible with everything.
Even accounting for this condition, his mother took all of that energy in with remarkable ease. Her strength swelled multiple times, yet Ves did not sense any indication that she was losing control.
This was incredibly remarkable! If it was so easy to become stronger by absorbing life-attributed energy, then Ves would have already absorbed the serum's energy for himself!
From what he observed with his spiritual vision, he saw that his mother did not absorb the energy in the most direct fashion possible. Instead, she transformed it, causing it to take on different attributes that were compatible with her. She smoothly managed to absorb the abundant amount of energy.