>>jol: yes, need to apply a layer of cold gel on face first when you do IPL.
dun think LHE is the next generation of IPL, more like I2PL. In fact, the two use different machines and their function differ. From what I understand, LHE helps to kill bacteria esply effective if you have acne problem. On the other hand, IPL is more for hair removal, skin rejunv and lightening of pigmentation. If I remember correctly, IPL is not be that suitable for acne problem skin type..