Type 2 diabetes mellitus is reported to be treated by modern drugs including insulin. Â However, patient compliance, side effects and cost effectiveness have paved the way to try theÂ complementary and alternative medicine. Diabetes mellitus (DM), a chronic hyperglycaemicÂ disorder, is characterized by an increase in the oxidative stress. The present systematic reviewÂ aimed to summarize the findings from the published literature focusing on the effect of herbalÂ extract towards the type 2 DM. Databases, including Pubmed, Science direct, Web ofÂ Knowledge, and Google scholar were searched using the terms â€˜herbsâ€™, type 2 DMâ€™, â€˜herbsÂ and type 2 DMâ€™. Only single herb related clinical studies issued in the English language betweenÂ 2000Â andÂ 2013 wereÂ included.Â DataÂ was extractedÂ by twoÂ independentÂ investigators, and the referencesÂ of includedÂ studies were thoroughlyÂ reviewed. A totalÂ of 20 studies met the selected criteria.Â Few studiesÂ showedÂ the comparison Â with Â oral Â hypoglycemic Â agents. Few (3Â outÂ ofÂ 20) Â studies Â demonstrated Â theÂ potential Â effectsÂ ofÂ herbalÂ extractÂ towardsÂ theÂ riskÂ factors of Â diabetic Â complications. Â ItÂ wasÂ observed Â thatÂ there Â were Â less published Â clinical Â data Â on Â herbal Â extracts Â usedÂ inÂ theÂ managementÂ of type Â 2Â DM. Â TheÂ resultsÂ of Â theÂ present Â systematic Â review mayÂ encourageÂ cliniciansÂ andÂ medicalÂ researchersÂ toÂ useÂ herbalÂ productsÂ forÂ effectiveÂ managementÂ ofÂ DMÂ andÂ itsÂ complications.