Will laser hair removal treatments cause skin damage after a while? e.g., open pores, lines, dryness, fat loss, sagging?

Laser hair removal should not damage the skin. In fact, laser can be used to address pores, wrinkles and skin texture.

The beauty of laser hair removal is that it targets only the individual hair follicles, leaving the surrounding tissue unaffected. Outside of hair removal, laser treatments are commonly used to help a number of skin-related issues, such as erasing fine wrinkles, smoothing acne scars and improving skin tone and texture. Just make sure you're only working with a reputable, board-certified dermatologist for safest, most effective treatment.

Hello, Thank you for your question.  I might say that laser hair reduction can actually improve skin texture/pores.  The heat of the laser actually stimulates collagen. Many of the skin tightening devices out there are about putting heat into the dermis to "stimulate collagen". 

Laser hair removal targets pigment and has not been shown to cause lines, wrinkles, or enlarged pores. Laser devices are frequently used to help address those concerns in the skin. However, complications can occur if you are treated by someone who is not well-trained or uses an incorrect device, so it is much more about finding an expert to treat you.  I hope this helps.