Hello,I keep reading that you need at least 1.5 depth needles to make a difference in scarring but I've also read that you shouldn't use needle lengths of 1.5 or above on your face because it can cause collagen break down.
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January 22, 2016
Answer: Derma roller depth
Jeff Rapaport, MDDermatologic Surgeon, Board Certified in Dermatology
How effective rollers are will be determined by your end goal, severity of your loss of collagen, technique, depth of rolling, and frequency. Derma Rollers do work, however they are almost 2 decade old, stamping technology with growth factors is the next step, and then energy based needling with...
I ask my patients to use tretinoin after skin rolling- micro needling, however the rate limiting factor is skin irritation. On this basis I get them to use Vitamin A 2-4 days after. When one needles to create channels, in theory we would like penetration of the vitamin A - tretinoin-...
I personally would recommend a 0,5 mm roller for home use. Anything approaching 1 mm will require numbing cream and antibiotics afterwards as you will bleed. I like a once to twice a month regime for my patients to do 'home work' in between energy based micro needling devices. See more...
