20 Symptoms

Symptoms Addressed by Peptide Therapy

Evidence-based peptide options for common symptoms — organized by body system with ranked treatment approaches and clinical evidence tiers.

20 Symptoms

8 Body Systems

40 Citations

Board Reviewed

Dermatological System

Hair Thinning

Gradual loss of hair density and thickness, with more hair falling out than growing back, leading to visible scalp thinning or widening part lines.

2 peptides 2

Skin Aging

Visible changes in skin quality including wrinkles, sagging, thinning, and loss of elasticity that make you look older than you feel, often accompanied by slower wound healing.

2 peptides 2

Endocrine System

Chronic Fatigue

Persistent, unexplained exhaustion that does not improve with rest and significantly interferes with daily activities and quality of life.

3 peptides 2

Elevated Cortisol

Chronically high stress hormone levels that disrupt sleep, promote belly fat storage, weaken immunity, and leave you feeling wired but exhausted at the same time.

2 peptides 2

Hormonal Imbalance

A collection of symptoms — fatigue, weight changes, mood swings, and disrupted sleep — that stem from hormones being out of their optimal ranges, often worsening with age.

3 peptides 2

Gastrointestinal System

Gut Issues

Chronic digestive problems including bloating, cramping, irregular bowel movements, and food sensitivities that disrupt daily life and resist standard dietary changes.

2 peptides 2

Immunological System

Chronic Inflammation

A persistent, low-level inflammatory state that does not resolve on its own, contributing to joint pain, fatigue, brain fog, and increased risk of chronic disease.

3 peptides 2

Weak Immunity

Getting sick more often than usual, taking longer to recover from infections, and feeling like your immune system is not protecting you the way it should.

2 peptides 2

Metabolic System

Insulin Resistance

A condition where your cells stop responding properly to insulin, causing blood sugar to rise, energy to crash after meals, and weight to accumulate especially around the midsection.

3 peptides 2

Low Energy

A persistent lack of vitality and motivation that goes beyond normal tiredness, making it hard to get through the day even after adequate sleep and nutrition.

3 peptides 2

Stubborn Weight Gain

Unexplained weight gain that resists diet and exercise efforts, often concentrated around the midsection, and typically linked to metabolic or hormonal dysfunction.

3 peptides 2

Musculoskeletal System

Joint Pain

Persistent aching, stiffness, or sharp pain in one or more joints that limits mobility and makes everyday movements uncomfortable.

2 peptides 2

Muscle Wasting

A gradual loss of muscle mass and strength that makes everyday activities like climbing stairs or carrying groceries increasingly difficult, often despite maintaining a normal diet.

3 peptides 2

Slow Recovery

Taking much longer than expected to bounce back from workouts, injuries, or illnesses, leaving you sore, fatigued, or impaired well beyond normal recovery timelines.

2 peptides 2

Neurological System

Anxiety

Persistent feelings of worry, nervousness, or unease that seem disproportionate to the situation, often accompanied by physical symptoms like a racing heart, tension, or restlessness.

2 peptides 2

Brain Fog

A persistent feeling of mental cloudiness, difficulty concentrating, and sluggish thinking that makes everyday tasks feel harder than they should be.

3 peptides 2

Brain Fog After Injury

Persistent mental cloudiness, difficulty concentrating, and memory problems that linger long after a head injury or concussion, even when scans show no visible damage.

3 peptides 2

Poor Sleep

Difficulty falling asleep, staying asleep, or waking up feeling unrefreshed despite spending enough time in bed, leaving you drained and foggy during the day.

3 peptides 2

Reproductive System

Erectile Dysfunction

Difficulty achieving or maintaining an erection firm enough for sexual activity, often causing significant distress and relationship strain despite physical desire.

1 peptide 2

Low Libido

A persistent lack of interest in sexual activity that feels out of character and may be accompanied by reduced arousal, affecting relationships and self-confidence.

2 peptides 2