... can be absorbed well. Applied range: 1. Scar removalincluding acne scar removal or treatment. 2. Stretch mark removal 3. Anti ageing. 4 ... 0 mm lmprove Wrinkle, Collagen Induction, lmprove Skin Scar, Cellulite treatment, Skin Thickness, Face Firming, Face Body Lifting1.5 mmPregnancy ... concavex holePimple scarSevere decline of elasticity Microneedle Dermal Roller for acne treatment scar removal