"Get the best laser hair removal and laser therapy treatment in Vijayawada at the BEST skin and hair clinic in Vijayawada. Call us for more info: +91 8367744744." The light energy is changed over to warm, which harms the tube shaped sacs inside the skin (hair follicles) that produce hairs. This harm represses or postpones future hair growth.The light energy is changed over to warm, which harms the tube shaped sacs inside the skin (hair follicles) that produce hairs. This harm represses or postpones future hair growth.