6x Mr Olympia Winner Chris Bumstead Explains What Peptides He’s Taking and Why

Six-time Mr. Olympia Classic Physique champion Chris Bumstead has been remarkably transparent about his approach to recovery and longevity, particularly regarding peptide use.

In a recent appearance on the Ultimate Human Podcast with Gary Brecka, the retired bodybuilder opened up about how peptides became essential tools in managing the physical toll of elite competition.

Bumstead’s peptide journey began in 2018, just four weeks before the Olympia competition, when he experienced a serious health emergency. “I had this insane amount of inflammation, edema in my legs. I put on like 15 pounds (6.8 kg) in a day and I had like no knee, no ankle. It was just inflamed,” he recalled.

The diagnosis was autoimmune kidney disease, a wake-up call that forced him to reconsider his entire approach to bodybuilding.

“Even myself, I’m sure I was still ignorant to what I was doing at the time, but I knew that the more stress I would put on my body, the worse it would push me back,” Bumstead explained. This realization led him to cut his PED use in half and focus intensively on health optimization.

Thymosin Alpha-1

The first peptide Bumstead incorporated was Thymosin Alpha-1, specifically for immune regulation. “Because it was autoimmune, I had a local guy tell me about Thymosin Alpha-1, like the immune regulation modulation that can come from that system. There was a lot of studies already at that point helping people with autoimmune conditions prevent flare-ups and being able to just regulate the immune system, preventing it from attacking itself,” he said.

The results were remarkable. Since starting Thymosin Alpha-1 in 2018, Bumstead reports he hasn’t had a true autoimmune flare-up. “I do take it still. I take it in cycles throughout the year,” he noted, emphasizing its ongoing importance in his health protocol.

BPC-157 and TB-500

When Bumstead discovered Thymosin Alpha-1, he simultaneously learned about BPC-157 and TB-500, peptides that would become staples in his recovery arsenal. “Those are like multivitamin to the average bodybuilder,” he explained. “When I talk about injuries I’ve had throughout my career, there’s few that I’ve gotten through where I’ve healed like how’d you heal so fast where I wasn’t taking those spot injecting it right into my lat, my shoulder or whatever it may be.”

For Bumstead, these tissue repair peptides were essential because injury is inevitable in professional bodybuilding. “You’re never not injured as a professional bodybuilder somewhere,” he stated matter-of-factly.

What’s particularly noteworthy about Bumstead’s peptide use is his conservative, health-focused approach. Unlike the win-at-all-costs mentality often associated with elite bodybuilding, he viewed peptides primarily as recovery and health optimization tools rather than performance enhancers.

“It’s really hard to say, but I would say they were definitely a massive cheat code for my career for me to be able to push for like I did for as long as I did, especially with an autoimmune condition and keeping my body’s inflammation low, ability to recover,” Bumstead reflected.

Now retired from professional competition, Bumstead is exploring additional peptide protocols for longevity and anti-aging. He mentioned recent interest in growth hormone-releasing peptides like Ipamorelin, CJC-1295, and Tesamorelin as alternatives to synthetic growth hormone, as well as GHK-Cu for tissue repair following shoulder surgery where he tore three rotator cuff muscles.

“I haven’t taken growth hormone now in extended period of time at all. I wanted to make sure my levels would come back naturally just as they were. So then I’ve been definitely looking into these peptides for the future,” he explained.

Bumstead’s approach to peptides reflects his overall philosophy about performance and health: find the minimum effective dose that allows you to achieve your goals while preserving long-term wellbeing.

“Bodybuilding is not a healthy sport at all. There’s a lot you put your body through,” he acknowledged. “You’re borrowing from your future life.”

For the six-time champion, peptides represented a way to manage that debt while still competing at the highest level.