PRODUCT DESCRIPTION This Kostech Derma Roller (KDR) comes with 540 titanium alloy needles of various diameter (0.25mm to 2.5mm) for effective operation and is made of ABS for good durability. HOW/ STEPS TO USE DERMA ROLLER FOR HAIR FALL TREATMENT Step-1: Sterilized the Derma Roller & make sure your hair is completely Dry. Step-2: Part your Hair & begin form wherever you wish to instill Hair Growth. Step-3: Roll it slowly in horizontal, vertical & then diagonal directions for 15-20 minutes. Step-4: Apply some hair essential oil or serum to the roots for best results. FOR ANTI-AGING TREATMENT Step-1: Sterilized the Derma Roller and cleanse your skin well. Step-2: Apply serum if you want enhanced absorption. Step-3: Roll it slowly in horizontal, vertical directions on your forehead, cheeks & chin gently. Step-4: Switch to & Horizontal strokes followed by diagonal one for not more than 2-3 minutes. FIND YOUR BEST NEEDLE SIZE OF DERMA ROLLER? ABOUT THE NEEDLE SIZE DETAILS & USE AND PRECAUTIONS OF DERMA ROLLERS Well, there are hundreds of Derma Rollers available today. They all look similar, but they don’t produce the same results. Without a quality roller, skin needling can do more harm than good. Low quality rollers produce painful sessions and subpar skin improvements. The needles bent and rust easily. This results in serious skin damage and infection. With a proper plan, you can expect seeing 60 to 80% improvement on your fine lines, wrinkles, scars or even stretch marks in under 6 to 8 months.