When first starting on a cycle of HGH injections, you might have some problems with bubbling on the skin. There are some ways you can fix this. First, make sure that the angle you are using is not too shallow. You may also want to try some more bac water. Besides these things, there are also some more options.

• Don't contaminate any part of the needle by touching it to anything before injection.
  
• Make sure there are no bubbles in the needle.
  
• Inject the needle into your muscle all the way until there is only a few millimeters left.
  
• Putting the needle in too fast can also be an issue.
  
• The last thing you can do is stretch out before injecting. 

If you want to avoid all this trouble, I would recommend trying a nutritional supplement to naturally increase your GH levels with a daily pill. Try GenF20 Plus.