Metabolic health, cellular energy, and the questions that keep me curious. Here are the compounds I’ve used and a closer look at what researchers are studying.
Peptides are short chains of amino acids—the building blocks of proteins. Many act as messengers, helping cells communicate and regulate processes already happening in the body.
What interests me is understanding those signals and the biology behind how we feel. Different peptides have different jobs; some medicines mimic the body’s natural signals, while others are still experimental. Working through a natural pathway does not automatically make a treatment safe or prove that it heals an underlying condition.
A quick introduction, a link to the research, and the limits worth understanding.
Metabolic Health
Retatrutide (GLP-3)
Metabolic health
My interest started with metabolic health and inflammation. Retatrutide acts on three hormone receptors—GLP-1, GIP, and glucagon—involved in appetite, blood sugar, and energy metabolism.
What researchers are studying:
Weight management: Its effects on body weight in people with obesity.
Blood-sugar control: Changes in HbA1c and glucose regulation in people with type 2 diabetes.
Liver fat: Its effects on fat buildup in the liver in people with metabolic fatty-liver disease.
Cardiometabolic health: Changes in blood pressure, cholesterol, and triglycerides.
Inflammatory markers: Changes in blood markers such as hs-CRP and IL-6 as part of metabolic-health research.
A blend of GHK-Cu, BPC-157, TB-500, and KPV. I’ve tried all four separately for specific goals, and together as a blend with faster recovery and maintenance as my goals.
GHK-Cu: A copper-binding peptide studied for collagen production and tissue remodeling—the rebuilding of tissue. Study ↗
BPC-157: Studied for tissue repair, including tendon and ligament healing, in animal models. Study ↗
TB-500: Related to thymosin beta-4, studied for helping cells move into injured areas during tissue repair. Findings on full-length thymosin beta-4 may not apply to products sold as TB-500. Related research ↗
KPV: Studied for calming inflammatory signals, including in experimental models of gut inflammation. Study ↗
About this blend
This describes my personal use and goals. It does not establish that the blend speeds recovery or that combining the ingredients is safer or more effective than using them individually.
Cellular Energy
NAD+
Cellular energy
Cellular energy is what drew me to NAD+, a coenzyme involved in energy metabolism and DNA-repair processes. While NAD+ isn’t technically a peptide, I include it here alongside my peptides because of my interest in cellular energy and healthy aging.
What the evidence doesn’t establish
Its essential role in the body does not prove that supplementation boosts energy or reverses aging. Studies of direct NAD+ administration remain limited.
Glutathione is one of the body’s key antioxidants, helping protect cells from oxidative stress and supporting normal immune function. Sometimes nicknamed the “hangover peptide,” it is also being studied in alcohol metabolism, though hangover relief has not been established.
What the evidence doesn’t establish
Glutathione’s natural roles in the body do not establish broad detox or anti-aging benefits from supplementation. A small study found lower acetaldehyde levels but no significant improvement in reported hangover symptoms versus placebo.
CJC-1295 and ipamorelin signal the pituitary gland through different pathways to release more of your own growth hormone. That connection to the body’s own signaling is what makes them interesting in growth-hormone research. Increasing hormone levels does not by itself establish greater strength or better recovery.
What the evidence doesn’t establish
That does not establish that the combination improves sleep, recovery, muscle growth, or longevity. CJC formulations differ; results from one cannot automatically be applied to another.
ADHD and attention are questions I want to explore. Semax has been studied for brain signaling and neuroprotection, including BDNF, a protein involved in neuronal function.
What the evidence doesn’t establish
The linked study is in rats, not an ADHD trial. I have not found robust clinical evidence establishing Semax as an effective ADHD treatment.
SS-31 is being studied for helping mitochondria—the tiny “power plants” inside your cells—work more efficiently. Researchers are exploring whether protecting these structures can improve energy production and muscle function in certain diseases. Benefits for everyday energy or healthy aging haven’t been established.
What the evidence doesn’t establish
That does not establish general anti-aging benefits or make research-vendor SS-31 equivalent to the approved medicine.