Is this supplement safe?

I was just wondering if any of the ingredients in this Testoterone Booster could have adverse side effects and what they could be. Here are the ingredients:

Amount Per Serving % DV*
Vitamin D (As Cholecalciferol) 1,000IU 250%
Vitamin B6 (As Pyridoxal-5 Phosphate) 5mg 250%
Folate (As Folic Acid) 100mcg 25%
Vitamin B12 (As Methylcobalamin) 10mcg 167%
Zinc (As Zinc Aspartate) 15mg 100%

GlycoCarn (Glycine Propionyl-L-Carnitine Hydrochloride), TestoSurge (Fenugreek Extract 80% Glycosides) (Trigonella Foenum Graecum) (Seed), Maca Extract 4:1 (Lipidium Meyenii) (Root), Indole-3 Carbinol, EuryGold (Std. To 28% Glycosaponins, 20% Polysaccharides) (Eurycoma Longifolia) (Root), Bioperine (Black Pepper Extract) (Std. To 95% Piperine) (Piper Nigrum) (Fruit)
* Daily Values not established.
Other Ingredients:
Gelatin, Rice Flour, Silica, Magnesium Stearate, And Titanium Dioxide.