_Sundial-ManBack32. Sundial Traditional African Man Back Tonic. 32 Oz (L) Sundial Traditional African Man Back Tonic. 32 Oz (L). Made from a combination of roots and barks from Ghana West Africa, where this tonic is used for all issues with sexual function, spine, and back nerves. Use African Manback Tonic to strengthen, rejuvenate and energize. 16 Fluid oz. This products contains no chemicals, artificial colors or additives. Different herbal spices are used to preserve the contents and extend their shelf life. The shelf-life is approximately 7 years without losing potency or quality. Directions: Shake and sip 1 oz daily. Due to seasonal availability of herbs, roots and spices, taste and color may vary. Ingredients: Essor Wisa, Pina-De-Ration, Khoya Senegalensis. Price: $40.00 Unit: Bottle Quantity: