According to the public product FAQ, Testolib contains zinc (30 mg), Tongkat Ali extract (300 mg), fenugreek seed extract (500 mg), D-aspartic acid (2000 mg), vitamin D3 (3000 IU), Ashwagandha KSM-66 (600 mg), boron (10 mg), and black pepper extract.
Always check the ingredient list on your own bottle or packaging because labels can be updated and the label is the source of truth for the product you received.
If you have allergies, take medication, or have a medical condition, speak with a healthcare professional before using the product.