Zinc and vitamin D3 are the two most familiar nutrients in the formula.
Zinc is an essential mineral involved in normal immune function and many body processes. Bisglycinate means it is bound to the amino acid glycine, a form often used for tolerability. Vitamin D3, or cholecalciferol, helps the body absorb calcium and supports bones, muscles and immune function, according to the NIH.
The page links zinc to normal testosterone maintenance, which relates to zinc adequacy.
Both have upper limits: 40 mg a day for zinc and 4,000 IU a day for vitamin D in adults, from all sources. Per-gummy amounts are not published, so you cannot add them to your multivitamin. Check the label, count other sources, and ask your doctor about a blood test if you suspect a deficiency.