Only Moisturizer not Lip Lightner!

When I got this product the outer part of the tube was looking as if it's refilled. Roller was not working. Later I adjusted with it. It's almost 2 months that I'm using this. I can say it's not that effective in lightening lips but it act as a good moisturizer. It burns slightly after application for few minutes. I don't know why that happens. But I'm not gonna buy it again for sure because for moisturising I can use any home remedy instead of wasting money on this product only for moisturising.