Overview of Muira Puama
Scientific Name: Ptychopetalum olacoides
The bark and roots of the tree are used for medicine. Sometimes another species, Ptychopetalum uncinatum, is used as an alternative to Ptychopetalum olacoides.
Conflicting (Unclear):insufficient information
- Dark Circles, a cream with muira puama/suma (Brazilian ginseng) / Lilium candidum 
No Evidence:insufficient information
No Clinical Research:All other conditions.
- Side effects have not been studied.
- Use caution or contact a licensed healthcare practitioner, since there is not enough research on the use of supplements containing muira puama.
- Muira puama does not appear to have the same side effects potential of herbal medicines containing yohimbine.
There is not enough research on the use of supplements containing muira puama during pregnancy and breast-feeding, so consult a licensed healthcare practitioner before use or avoid use. 
Muira puama is not a "drug", so the best doses have not been thoroughly established. Make sure to follow the specific product instructions and take as directed on the label, or consult a licensed healthcare practitioner before use.
1. Eberlin S, Del Carmen Velazquez Pereda M, de Campos Dieamant G, Nogueira C, Werka RM, de Souza Queiroz ML. Effects of a Brazilian herbal compound as a cosmetic eyecare for periorbital hyperchromia ("dark circles"). J Cosmet Dermatol. 2009 Jun;8(2):127-35. 2. DerMarderosian A, Beutler JA. The review of natural products: the most complete source of natural product information. 7th ed. St. Louis, MO, USA: Wolters Kluwer Health; 2012. 3. Afendi FM, Okada T, Yamazaki M, Hirai-Morita A, Nakamura Y, Nakamura K, Ikeda S, Takahashi H, Altaf-Ul-Amin M, Darusman LK, Saito K, Kanaya S. KNApSAcK family databases: integrated metabolite-plant species databases for multifaceted plant research. Plant Cell Physiol. 2012 Feb;53(2):e1.