Dave Asprey Peptides: The Bulletproof Founder's Anti-Aging Stack

Dave Asprey, the founder of Bulletproof Coffee and self-described "father of biohacking," has publicly committed to living to 180 years old. Whether or not that goal is achievable, his willingness to experiment with cutting-edge longevity interventions — including peptide therapy — has made him one of the most influential voices in the space. This post breaks down the peptides Asprey has discussed publicly, the science behind each, and the framework he uses to think about biological aging.

As always, Asprey shares his personal protocols as a biohacker, not as medical advice. These compounds range from prescription-required to research-use-only depending on your country. A physician should be involved before any peptide use.

Asprey's Longevity Philosophy: Upgrade Everything

Asprey's approach differs from performance-focused biohackers in one key way: he is explicitly optimizing for lifespan extension, not just athletic output. His peptide choices reflect this. While some biohackers reach for BPC-157 to heal a training injury, Asprey's primary interest is in compounds that address the hallmarks of aging at the cellular level — telomere shortening, mitochondrial dysfunction, loss of proteostasis, and epigenetic drift.

This is why his stack leans toward what the longevity research community calls "geroprotectors" — compounds that slow or reverse age-related biological changes — rather than pure performance enhancers.

Epithalon: Telomere Maintenance and the Aging Clock

Epithalon (epitalon) is the peptide most associated with Asprey in the anti-aging context. This tetrapeptide (Ala-Glu-Asp-Gly) was developed in the 1980s by Vladimir Khavinson at the St. Petersburg Institute of Bioregulation and Gerontology. It activates telomerase, the enzyme responsible for maintaining telomere length.

Telomeres are the protective caps on chromosomes that shorten with each cell division. When they become critically short, cells either die or enter senescence — a zombie-like state where they stop dividing but release inflammatory signals. Shorter average telomere length is associated with accelerated aging, cardiovascular disease, and increased cancer risk.

Asprey has discussed running epithalon in short cycles (typically 10–20 days of daily dosing, once or twice per year) based on the original Russian research protocols. Several animal studies show lifespan extension; human data is limited but includes trials showing improved melatonin secretion and antioxidant status in elderly subjects.

For a broader comparison of longevity peptides, see our guide on best peptides for anti-aging.

GHK-Cu: The Copper Peptide That Reactivates Youth Genes

GHK-Cu (glycyl-L-histidyl-L-lysine copper complex) is a naturally occurring tripeptide that peaks in the blood during youth and declines sharply with age. By age 60, plasma GHK-Cu levels have dropped roughly 60% compared to age 20. Asprey considers this decline a key driver of aging.

GHK-Cu's mechanisms are remarkably diverse. Research published in peer-reviewed journals shows it:

• Stimulates collagen and elastin synthesis
• Activates antioxidant and anti-inflammatory gene expression
• Promotes nerve regeneration
• Modulates over 4,000 human genes, including upregulating genes associated with tissue repair and downregulating genes associated with cancer and inflammation

Asprey has discussed using GHK-Cu both topically (for skin) and systemically. Topical GHK-Cu products are widely available as cosmetic serums; systemic use via injection is a different regulatory matter. The skin applications have the strongest accessible evidence base and are a reasonable starting point for most people interested in the compound.

BPC-157: Gut Healing and Systemic Repair

Asprey has discussed BPC-157 less than some other biohackers but in specific contexts — particularly gut health and inflammation. His interest stems partly from his own history with health issues including significant inflammation and cognitive impairment, which he attributes in part to dietary toxins and gut dysfunction.

BPC-157's gastric origin makes it particularly relevant to gut healing. Studies in animal models show it can repair leaky gut, reduce intestinal inflammation, and protect against NSAID-induced gastric damage. Asprey's interest in the compound aligns with his broader emphasis on gut-brain axis optimization.

For the full profile on this compound, see our BPC-157 peptide guide.

Thymosin Alpha-1: Immune System Calibration

Asprey has mentioned thymosin alpha-1 in the context of immune optimization — particularly its role in regulatory T-cell function and its history of clinical use in immunocompromised patients. The immune system's gradual dysfunction with age (immunosenescence) is one of the hallmarks of aging Asprey focuses on, as a dysfunctional immune system both increases infection risk and drives chronic low-grade inflammation.

Thymosin alpha-1 has FDA orphan drug designation and is approved in multiple countries. It has more clinical evidence supporting it than most peptides discussed in the biohacking world. See our Thymosin Alpha-1 guide for the clinical evidence.

Semax and Selank: Cognitive and Stress Resilience

Asprey's interest in brain optimization means he has explored nootropic peptides as well. Semax and Selank are synthetic peptides originally developed in Russia with cognitive-enhancing and anxiolytic properties respectively. Both modulate the BDNF pathway (brain-derived neurotrophic factor), which is critical for neuroplasticity.

Asprey has discussed these compounds in the context of cognitive performance and stress resilience — a natural fit for a biohacker whose stated goal is to optimize mental output while extending lifespan. For more on Semax, see our Semax peptide guide.

The Anti-Aging Stack in Context

Asprey's peptide use sits within a broader longevity protocol that includes:

• Fasting and ketogenic diet cycling (to activate autophagy)
• Cryotherapy and hyperbaric oxygen
• Ozone therapy
• Stem cell treatments
• Regular biometric tracking and bloodwork

Peptides are one layer in a multi-modal approach. This context matters because the synergies between these interventions are real — autophagy from fasting, for example, clears cellular debris that would otherwise blunt the regenerative effects of healing peptides.

Asprey's Evidence Standards: Where Experts Agree and Disagree

Asprey draws criticism from some in the medical establishment for moving faster than the clinical evidence. It is fair to say that most of the peptides he discusses have stronger animal data than human data. His defenders argue that waiting for 30-year randomized controlled trials in longevity research is not a viable strategy for someone alive today who wants to influence their own trajectory.

The honest position sits somewhere in between: there is meaningful mechanistic and animal evidence for many of these compounds, the safety profiles are generally acceptable in the short-term, and the longevity targets (telomere maintenance, inflammation reduction, tissue repair) are well-validated. But the specific dosing, cycling, and stacking protocols that Asprey uses are largely empirical, not clinically validated.

For a broader assessment of safety, see our guide on are peptides safe.

Sourcing and Regulation

Asprey is vocal about the importance of sourcing quality. The peptide market is unregulated in most jurisdictions, and purity varies enormously. He advocates for third-party tested products and, for injectable compounds, pharmaceutical-grade suppliers. See our peptide research chemicals guide for a primer on how to evaluate sourcing.

Frequently Asked Questions

Q: What is Dave Asprey's primary anti-aging peptide? Epithalon appears most prominently in his anti-aging discussions, given its direct connection to telomere maintenance. GHK-Cu is a close second for its broad regenerative gene activation.

Q: Does Dave Asprey inject peptides? Yes, he has discussed injectable protocols publicly. He also uses topical formulations for compounds like GHK-Cu and has explored oral peptides.

Q: How does Asprey's approach differ from Ben Greenfield's? Greenfield tends to emphasize performance and recovery alongside longevity. Asprey's primary axis is lifespan and healthspan extension, which influences which compounds he prioritizes. See our Ben Greenfield peptides post for comparison.

Q: Is epithalon available in the US? Epithalon is not FDA-approved and is sold as a research chemical. It is not legal for human consumption sale in the US without a prescription, though it is widely available online. Consult legal guidelines for your jurisdiction.

Q: Can I get GHK-Cu benefits from a topical serum without injecting? For skin-specific benefits, topical GHK-Cu serums have solid evidence. For systemic effects, topical absorption is limited. Most researchers and clinicians use injectable forms for systemic protocols.