I have Ehlers Danlos Syndrome and I want to know if a Dermal Roller or other treatments can help my defective collagen. (photo)

I have a similar patient who has this condition, EDS had different types, some affecting the skin more than others. This is a genetic condition that has effects on collagen. You are indeed correct, facelifts do not last very long, and laxity comes back within 6-12 months. My patient had 2 face lifts in the past, I performed a lift 9 months ago, but maintain her collagen and tightening with INFINI, initially every month, then now spacing to every two months. So far her results are great- not only has she maintained her skin tone, but with the INFINI RF, her wrinkles are improving even further. I am commenting on only one case. For an accurate answer, I think a series of cases needs to be studied for an accurate response. Derma roller, as you know just needles skin, I think you do need some form of collagen stimulation via energy (laser or RF). Regardless, no harm trying with a 0,5mm. In the US, I think you are 'restricted to 0.25mm'.See video below for reference on rolling and needling. Dr Davin Lim 

I am not aware of any studies that have been done showing skin improvement from micro-needling patients with Ehlers Danlos syndrome. Five of the six identified types of ED syndrome have been shown to be inherited disorders of collagen synthesis. Therefore, anything stimulating the formation of collagen would not be likely to be very effective in improving skin elasticity.