RF microneedling or CO2 Fractional- which is more effective for older white stretch marks?

medical tattooing is often best. co2 is not a good choice. MNRF rarely works only in very specfic strestch marks. nonablative lasers do better.

stretch marks need lasers, microneedling, and sometimes medical tattooing. it is best at home to be using products that stimulate collagen and improve discoloration.  see emeragecosmetics for products like vivatia foam, emerageskin roller with anteageMD ampules to be used twice weekly, phyto plus by skinceuticals, cosmelan 2 cream, reve skin 1.0 retinol, and ISDIN lactic acid body lotion. In office radiofrequency like fractora, skinfinity, and venus viva rarely works well.  consult with us.  Best, Dr. Emer.

In my opinion neither of those two technologies are effective for white stretch marks. CO2 fractional for off face areas and all over the body has not been substantiated in clinical studies and RF micro needling may improve the elasticity of the skin but the stretch marks will still remain.
Don't waste your time and money!
Apologies for being so blunt