Peptides by Health Condition
Symptom-first guides explaining which peptides may help with specific health conditions, ranked by evidence quality.
Gut Health
Joint Health
Hormonal Health
Low testosterone (hypogonadism) can be primary (testicular failure) or secondary (hypothalamic-pituitary dysfunction). Symptoms include fatigue, low libido, muscle loss, fat gain, depression, and cognitive decline. Peptides can support testosterone production through the HPG axis.
Male hypogonadism involves insufficient testosterone production due to testicular failure (primary) or hypothalamic-pituitary dysfunction (secondary). Symptoms include reduced libido, erectile dysfunction, fatigue, muscle loss, fat gain, mood changes, and reduced bone density.
Mental Health
Anxiety disorders include generalized anxiety disorder (GAD), social anxiety, panic disorder, and PTSD. They involve dysregulation of the stress response, GABAergic and serotonergic systems, and HPA axis. Peptides offer novel mechanisms distinct from conventional anxiolytics.
Anxiety disorders encompass generalized anxiety disorder (GAD), social anxiety, panic disorder, and PTSD. They involve dysregulation of the HPA axis, GABAergic and serotonergic neurotransmission, and neuroinflammation. Standard treatments include SSRIs, SNRIs, benzodiazepines, and cognitive behavioral therapy.
Major depressive disorder (MDD) involves persistent low mood, anhedonia, cognitive impairment, and neurobiological changes including reduced neuroplasticity, HPA axis dysregulation, and neuroinflammation. Standard treatments include SSRIs, SNRIs, tricyclics, MAOIs, and psychotherapy.
Sleep
Musculoskeletal
Metabolic & Energy
Bone Health
Sexual Health
Dermatology
Androgenetic alopecia (AGA) is the most common form of hair loss, driven by DHT (dihydrotestosterone) sensitivity in genetically predisposed hair follicles. It causes progressive miniaturization of hair follicles. Standard treatments include minoxidil, finasteride, and hair transplantation.
Skin aging involves both intrinsic (chronological) and extrinsic (photoaging) processes. Key changes include collagen loss (1% per year after age 20), reduced elastin, decreased hyaluronic acid, thinning of the dermis, and impaired wound healing. These changes result in wrinkles, laxity, uneven pigmentation, and reduced skin barrier function.
Metabolic & Weight
Obesity is a chronic metabolic disease characterized by excess adipose tissue accumulation that impairs health. It involves complex interactions between genetic predisposition, hormonal dysregulation (leptin resistance, insulin resistance), gut microbiome, and environmental factors. It significantly increases risk of type 2 diabetes, cardiovascular disease, and certain cancers.
Type 2 diabetes is characterized by insulin resistance and progressive beta-cell dysfunction, resulting in chronic hyperglycemia. It is driven by obesity, physical inactivity, and genetic factors. Complications include cardiovascular disease, nephropathy, retinopathy, and neuropathy.