Collagen Therapy. Microneedling is a skin treatment that uses tiny needles to create micro-injuries and stimulate healing and collagen production. The procedure can help reduce the appearance of skin concerns such as acne scars, stretch marks or wrinkles. educing the appearance of scars, including acne scars reducing the appearance of fine lines and wrinkles reducing enlarged pores reducing the appearance of hyperpigmentation, or dark spots smoothing uneven skin tone …