Will IPL help tighten skin under eyes?

No, IPL would not be the best option. IPL is not designed to tighten facial skin, rather it improves a variety of skin imperfections. Laser resurfacing would be a better option for tightening the skin under the eyes. 

There are better options to tighten skin on the lower eyelid. We would begin with topical creams to improve color and skin resiliency. Elevase Moisture Booster with Ceramides.  Also, fractional co2 laser is a great option with lighter skin.Best,Dr. Karamanoukian Los Angeles

IPL is a great technology for treating brown sun spots and broken capillaries.  While it also helps stimulate collagen production, it is not a tightening tool.  For the under-eye area, and for general skin tightening in areas where there are fine lines, I recommend treatment with DEEP FX.  With placement of protective eye shields, I am able to safely and effectively treat the eyelid skin up to the eyelash margins.Good luck!

IPL is not designed to tighten skin on the face, although it has many other benefits to improve the tone and texture of the skin. There are several treatments available that can non-surgically tighten the skin. Ask your board-certified dermatologist which treatment is right for you!

IPL or BBL (intense pulse light or broad band light) is particularly good for treating redness and flushing, as well as brown spots (lentigo/lentigines), and it does seem to improve the overall texture and tone of the skin so you may get some modest tightening under the eyes as well.

Not really. While IPL may improve tone and texture, which will make the skin look much better, to actually tighten the skin, you'd need a resurfacing laser. I have found the InMode Fractora treatment to be particularly effective because pain and downtime are so minimal, and it can be done in small areas with no demarcation lines.  "This answer has been solicited without seeing this patient and
cannot be held as true medical advice, but only opinion. Seek in-person
treatment with a trained medical professional for appropriate care."