There will be a few completely natural ways in which you could promote more testosterone production in your body, without mentioning the majority 'steroids'.

To a good effective ectomorph weight gain develop an application that meets the needs of human body type. Proper sleep factor that you shouldn't over look Testabolan CYP accommodating gain body fat. During sleep or rest there is often a release of natural human growth hormones. Also develop a healthy diet that will promote gain in weight and works for your proper training. Finally weight training exercises like squats will have a compound workout which ectomorph seem to thrive on. Follow some of these tips an advanced ectomorph intending to gain lbs.
Testabolan CYP
http://www.healthdiscreet.com/testabolan-cyp/