The concept of having the serum and red light therapy with a microcurrent wand in the same product was definitely intriguing. You apply the serum then you're supposed to glide the cap over it to get your skin to really absorb it. You use the cap for 3 minutes and really like that it has a built in timer so I don't have to watch the clock or guess how long I've been using it. Once the 3 minutes is up, it shuts off automatically. The light and microcurrent has 3 levels and works when it sits flush with your skin.
This works great in large areas like my cheeks and forehead. I didn't have any irritation while using the red light or any of the 3 levels of the microcurrent. The microcurrent isn't overly noticeable on the first level, but becomes more noticeable the higher you go. It doesn't cause any pain got me, just a tingling sensation. Fine for sensitive and acne-prone skin. I would suggest starting off on level one first.