I had to buy this because I've been really pushing my workouts. Some pain has been popping up so I tried it and this tape is awesome. The pain has gone away and a friend recommended Tritestin by Biotek Nutrition "“ Testosterone Booster Boosts Test Levels and Increases Strength, Muscle Mass, Fat Loss, and Overall Male Performance as a test booster to help gain some extra strength which also worked in making the soreness go away. I am actually using less of the KT Tape now but it definitely still comes in handy.

I use this stuff for my plantar fasciitis and it actually works! It takes a time or two to learn how to best apply it. For me I find that if I apply it after a shower and really washed the area of application that I can get 5-7 days per application. Make sure not to apply lotions or oils around the strips or else they will come off quicker.

Update: after a month of using this product, I discovered the importance of effective exfoliation prior to application. If I exfoliate and wash the area with soap prior to applying mine will last up to 9 days before beginning to peel. Also any non-hairy areas last longer than hairy areas.

I've tried several different kinesiology tapes, here are the results of my head-to-head comparisons...

In order of stretchiness:
KT Tape Pro: Super stretchy spandex-type material. Dries super fast. Breathes excellently even in multiple layers.
KT Tape: High-elastic content cotton. Dries reasonably fast. Adequate breathability in multiple layers.
Rocktape H2O: High-elastic content cotton. Dries reasonably fast. Adequate breathability in multiple layers.
Rocktape: Moderate-elastic content cotton. Takes the longest to dry but that's still fast. Not very breathable, can feel slightly stifling in multiple layers.

In order of stickiness:
Rocktape H2O: Can be repositioned, and will stick just as well after repositioning. Sticks to tape well. Can be uncomfortable to remove.
Rocktape: Can be repositioned, but loses some stickiness each time. Edges tend to peel up. Doesn't stick to tape very well. Okay removal.
KT Tape Pro: Can be repositioned, but won't stick for more than a day if you do.
Sticks to tape well. Easily removed.
KT Tape: Cannot be repositioned, edges tend to peel. Sticks to tape adequately well. Seems more painful to remove than others.

In order of longevity:
Rocktape H2O: 3+ days. Stays put until you take it off.
KT Tape Pro: 2-4 days. Once you get it stuck on, it stays. Less peeling than Rocktape.
Rocktape: 2-4 days. Edges tend to peel up on day 2, so you've got to trim it down.
KT Tape: 1 day. Edges and entire parts of strips peel up almost immediately.

In order of support:
Rocktape: Very stable support. Multiple layers offer similar support to a lightly structured brace. Useful for areas where you need a lot of stability like knees and ankles.
Rocktape H2O: Stable support.
Multiple layers offer similar support to a soft compression brace. Useful for areas where you need both stretch and support, better adhesion and superior stretch offers excellent 'massage' for sore muscles.
KT Tape: Moderately stable support. Multiple layers offer similar support to a compression sleeve.
KT Tape Pro: Light to moderate support. Multiple layers offer similar support to a soft compression sleeve. Useful for areas where you need flexibility first, particularly well-suited to wrists and fingers.

Recovering from knee surgery and trying to find something, anything, to ease the pain was a definitely a challenge. I started taping my knee (and also my shoulder because it was bothering me) and the KT tape really worked wonders. It did not totally eliminate the pain, but it definitely helped me feel about 80% pain free. I also have been using Ostaflex "“Relief from Severe Joint Ache with Glucosamine, MSM, & Chondroitin and it has really helped with my joint pain and has me feeling just about 100% pain free. Give these products a try, you will not be sorry.

KT TAPE works well. However application is tedious and may not last through entire workout. I am finding that reusing the KT Tape, as stated, is not applicable either. Most days the tape is coming loose 1/2 to 3/4 through my runs. The tape starts to pull away in the places I need the support the most. I clean (scrub more like) the areas I apply the tape and then alcohol to remove any lingering oils, (PS I am NOT an oily gal) And then apply tape as directed Rubbing the tape on and even warming it up with hair dryer to warm up adhesive (which seems to work best here in Colorado) . Because of the time, the expense it's not the best option for me. When it does stay on it's primo, otherwise I am going to find a less time consuming support option.