New website coming soon!

The NEW PowerLab Workouts is NOW OPEN!!

Train with purpose.  Improve your nutrition. Achieve significant and measurable progress.  Receive on-going motivation geared towards your specific goals. With daily encouragement, you will experience success like never before!


If you want more accountability and close coaching from me, now is the time to act. All you need to do is email, “Yes, Janel I’m ready for the next step.” Tell me why you want it and what you are looking to get out of it. Then, we will sit down together and discuss how I can provide the right tools for your success.

Hope to see you soon!

Janel Wierenga
Owner, PowerLab Workouts

14712 Sinclair Circle, Suite C, Tustin, CA 92780

What Our Customers Are Saying.

Don’t just take it from us, let our customers do the talking!

I have never enjoyed working out more!  Janel and Mari are great motivators – the workouts are challenging and I look forward everyday to see how far I can push myself!  Joanne is the cherry on top – after a brutal workout she helps stretch out all those muscles you didn’t know you had!

—Christina, Tustin

I LOVE PowerLab Workouts!  Here’s why:  Janel, Mari and all the coaches are incredible.  The workouts are fun, creative, powerful and extremely effective!  The Lab is clean, fresh and filled with a spirit of kindness mixed with the seriousness needed to get an amazing workout.  Janel’s Zumba classes are fantastic.  That girl can dance and be prepared to work up a real sweat.  She has got to be the best Zumba instructor anywhere.  PowerLab is unique in the variety of workouts such as power classes,  yoga, zumba, pilates and more.  There’s no place like it.  You will be hooked.  5 stars from me.  See you there.

—Diane, Irvine

I cannot say enough good things about PowerLab Workouts. If you want to get your butt kicked and have a blast, this is your place. You’ll burn tons of calories and enjoy it. Janel and Mari are both fantastic — super encouraging, extremely knowledgeable about health and fitness and just all around delightful to be around. Highly recommend this place!

—Antoinette, Costa Mesa