Los Angeles Personal Training - Los Angeles, California

Cyrus Moga

Jason brings the perfect mix of energy and knowledge that makes every session both fun and seriously effective.

Jason knows how to push you just enough to get results without making you dread your next workout. He’s got this way of making even the toughest exercises feel achievable – and he’s great at finding that balance between challenging and encouraging. Plus, he’s super personable and can crack a joke just when you need it most lol
What I love most? Jason genuinely cares about helping you hit your goals. He remembers the little details, checks in on how you’re feeling, and is always ready with adjustments to keep things interesting. If you’re ready to work hard but want someone who feels like a friend cheering you on

Scott Bailey

After doing extensive research, I found Jason to work closely with my tennis student who is an aspiring professional. The results were quick and dramatic. He is now the only guy we would trust when it comes to performing a body transformation. He is honest, straightforward and knowledgeable. We consider him now an integral part of our team. The bottom line is, he’s the best and I wouldn’t trust anyone else to be in charge of this extremely important facet of our training.

S.C. T.

I've had the privilege of knowing Jason for 22 years, working with him on and off since college and when I moved back to LA. And I can confidently attest that he is, without a doubt, the the best. The results he's helped me achieve are nothing short of remarkable (12% body fat) – my fitness journey has been a testament to his unwavering dedication, expertise, and passion. What sets him apart is not only his impressive knowledge of human physiology, but also his ability to tailor their approach to meet the unique needs and goals of each individual. If you're seeking a personal trainer who will push you to new heights, provide unwavering support, and help you reach your full potential, Jason is the person to call.

Jesse Harbold

Highly recommend! I recently completed my initial 12-week program, and it’s been a truly wonderful experience. While I’ve mostly been training with his partner Jerry—who is an absolute joy—Jason has been monitoring my nutrition. Both have been incredibly supportive, offering an endless stream of knowledge whenever I have questions or doubts. My goal was to lose 20 pounds but I’ve managed to lose a little over 30 pounds while also becoming more proportional in the process.

A word to the wise: The diet Jason provides is tough at first, but your body adapts quickly. Trust the process, and listen to everything Jason says! You’ll absolutely see results if you do.

Jennifer Eden

⭐️⭐️⭐️⭐️⭐️ Jason Kozma is the Best in the Business!

If you're looking for a personal trainer who truly knows how to deliver results, Jason Kozma is your guy! For me it was all about body recomposition, and his approach is hands down the most effective and efficient I’ve ever experienced. In the first few weeks, I saw noticeable changes, by week 6, everyone else started to notice too. I dropped 20 lbs of fat and added 10 lbs of muscle, I can't wait for the next 6 weeks' results. Jason has an incredible depth of knowledge when it comes to fitness, nutrition, and how to transform your body in a sustainable way.

His tailored programs not only push you to your limits but do so in a way that keeps you motivated and focused. I’ve seen real, measurable changes in my physique and strength thanks to Jason’s guidance. He’s passionate, professional, and absolutely dedicated to helping you achieve your goals.

If you're serious about transforming your body and want the best in the business, Jason is the trainer you need. Highly recommended!

AMIR KARIMI

I recently completed a six-week program with Jerry, and I couldn't be happier with the results. From the very first session, it was clear that Jerry was not only knowledgeable but also genuinely invested in my success. Over the course of the program, I lost 5% body fat, an achievement I never thought possible in such a short period.

The workouts were always challenging yet tailored to my fitness level, which kept me motivated and engaged. Jason also provided invaluable nutritional guidance, ensuring that my diet complemented my training regimen perfectly. Their constant support and encouragement made all the difference.

What sets them apart is their holistic approach to fitness and well-being. It's not just about the workouts but about fostering a healthier lifestyle overall. I feel stronger, more confident, and equipped with the knowledge to maintain my progress long-term.

If you're serious about transforming your body and health, I highly recommend them. The results speak for themselves!

Kathy Cui

I highly recommend Jason and Jerry as personal trainers. Their personalized approach, combined with their extensive knowledge, helped me not only achieve my weight loss target but also taught me how to maintain a balanced diet. I look and feel fantastic, and I owe it all to their incredible support and guidance. If you're looking for trainers who truly care about your success, Jason and Jerry are the best!

Drew Thaler

I’d been thinking about doing this for a while but all the stresses of life got away from me. Jason found a trainer and diet that worked for me. Once I finally started and committed to the plan, I dropped 10lbs of fat in a month… now I wish I had done it sooner. Feels good to be back in my body again. Thanks Jason, Lena, and Jerry 🙂