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Derma rollers come in variety of needle sizes and it’s important to choose the correct needle size, or it will make or break your treatment. 0.20mm Dermaroller – Sensitive Skin. 0.25mm Dermaroller – Serum Absorption. 0.5mm Dermaroller – Erase Wrinkles. 0.75mm Dermaroller – Reduce Acne Scars. 1.0mm Dermaroller – Hair Growth. 1.5mm – Reduce Stretch Marks.
