A derma roller is a handheld skincare device used for a treatment called micro-needling or collagen induction therapy. It features a small cylindrical drum studded with tiny, fine needles that vary in length, typically ranging from 0.25mm to 1.5mm.

The purpose of a derma roller is to create micro-injuries on the skin's surface by gently rolling the needles across it. These micro-injuries stimulate the body's natural healing response, which in turn boosts collagen and elastin production. Increased collagen and elastin can help improve the appearance of acne scars, fine lines, wrinkles, stretch marks, and overall skin texture.

Before using a derma roller, it's essential to properly clean and disinfect both the device and your skin to minimize the risk of infection. After rolling, skincare products such as serums or moisturizers can be applied to enhance their absorption and effectiveness.

While derma rollers can be used at home, it's crucial to follow the manufacturer's instructions and choose the correct needle length for your specific skin concerns. If you're unsure or have any underlying skin conditions, it's always best to consult a dermatologist or skincare professional before starting any micro-needling treatments.