Heart, Liver & Kidney

Organ protection and metabolic disease.

14 peptides · 36 linked sources

Heart, Liver & Kidney: 14 peptides and related compounds in this index have at least one researched benefit that sources link to heart, liver & kidney. Those with approved or trial-backed evidence: Thymosin Alpha-1, Semaglutide, Tesamorelin, Tirzepatide, Retatrutide, HGH (Somatropin), Glutathione.

Peptides discussed for heart, liver & kidney, at a glance
PeptideEvidence labelWhat sources discuss for this goal
Thymosin Alpha-1Trial-backedChronic hepatitis B
SemaglutideApproved (specific use)Fewer heart attacks and strokes; Kidney and liver protection
TesamorelinApproved (specific use)Less liver fat in HIV
TirzepatideApproved (specific use)Blood sugar and heart risk
RetatrutideTrial-backedBlood sugar control; Less liver fat
EpithalonEarly humanLower mortality, small Russian trials
TB-500PreclinicalCardiac repair, preclinical
Lipo-CUnstudiedLiver fat handling, nutrient data only
MICUnstudiedLiver fat export, choline data
Tesamorelin + IpamorelinUnstudiedBelly fat, via tesamorelin
HGH (Somatropin)Approved (specific use)Less visceral fat, better lipids
GlutathioneTrial-backedFatty liver, small pilot
FOXO4-DRIPreclinicalKidney function, mice
5-Amino-1MQPreclinicalMetabolic health, mice

Listed when one of a peptide's three researched benefits relates to heart, liver & kidney. Strongest evidence first. Inclusion is not a recommendation, and some listed effects are unproven or failed in trials.

Approved (specific use)

Approved by the FDA (or a major regulator) for at least one specific use. Approval covers that use only, not the other benefits listed.

  1. Semaglutide

    About 15% weight loss, Fewer heart attacks and strokes, Kidney and liver protection

    02 Fewer heart attacks and strokes

    • Cardiovascular protection: SELECT trial cut major adverse cardiovascular events 20% (HR 0.80) in people with obesity and heart disease without diabeteshuman phase 3 RCT34

    03 Kidney and liver protection

    • Kidney protection: FLOW trial reduced major kidney outcomes 24% and slowed eGFR decline in type 2 diabetes + CKD, also lowering CV events and deathhuman RCT
    • Liver: accelerated FDA approval for MASH with F2-F3 fibrosis

    Sources for this benefit 56

    Side effects, quotes and full profile
  2. Tesamorelin

    Less deep belly fat, Less liver fat in HIV, Cognition in older adults, one trial

    02 Less liver fat in HIV

    • Reduces liver fat in HIV-associated NAFLDhepatic fat fraction -4.1 points vs placebo over 12 months; human RCT78
    Side effects, quotes and full profile
  3. Tirzepatide

    Major weight loss, Blood sugar and heart risk, Less sleep apnea

    02 Blood sugar and heart risk

    • Glycemic control in type 2 diabetes and cardiovascular event reduction in high-risk adultsFDA label, SURPASS program910
    Side effects, quotes and full profile
  4. HGH (Somatropin)

    Leaner body composition, Treats growth failure in children, Less visceral fat, better lipids

    03 Less visceral fat, better lipids

    • Reduces visceral fat and improves lipids (total/LDL cholesterol) in obese adults without GHD, but no net weight lossmeta-analysis of RCTs
    • Long-term (5-15 yr) replacement in GHD adults linked to sustained quality-of-life gains (mostly uncontrolled studies)

    Sources for this benefit 272829

    Side effects, quotes and full profile

Trial-backed

Larger randomized human trials exist, positive or negative, but no US approval for the uses discussed.

  1. Thymosin Alpha-1

    Chronic hepatitis B, Stronger vaccine response, Sepsis, mixed results

    01 Chronic hepatitis B

    • Chronic hepatitis B: RCTs reported HBV DNA/HBeAg clearance and ALT normalization with mild side effects, though results mixedhuman RCTs12
    Side effects, quotes and full profile
  2. Retatrutide

    Large weight loss, Blood sugar control, Less liver fat

    02 Blood sugar control

    • Glycemic control in type 2 diabetes: HbA1c -1.3% to -2.0% at 24 weeks with up to ~17% weight loss at 36 weeksphase 2 RCT1112

    03 Less liver fat

    • Liver fat reduced ~82-86% (12 mg) in MASLDphase 2a RCT
    • Knee osteoarthritis pain (WOMAC) improved with 26-29% weight loss in TRIUMPH-4 (phase 3, company-reported)

    Sources for this benefit 131415

    Side effects, quotes and full profile
  3. Glutathione

    Raises body glutathione, Skin lightening, mixed trials, Fatty liver, small pilot

    03 Fatty liver, small pilot

    • Fatty liver: open-label pilot (n=34) of 300 mg/day oral GSH for 4 months lowered ALT (~13%), triglycerides, free fatty acids and ferritin in NAFLDhuman, uncontrolled3031
    Side effects, quotes and full profile

Early human

Small, short, old, unblinded or single-group human studies.

  1. Epithalon

    Telomere lengthening, lab, Lower mortality, small Russian trials, Melatonin rhythm, extract data

    02 Lower mortality, small Russian trials

    • Mortality: parent extract epithalamin in 70 older adults with heart disease linked to 28% lower overall and 2-fold lower cardiovascular mortality over 12 years; 266-person cohort reported 1.6-1.8x lower mortalitysmall Russian human trials, not independently replicated; extract, not synthetic epitalon161718
    Side effects, quotes and full profile

Preclinical

Mostly cell and animal studies. Human effects unknown.

  1. TB-500

    Wound healing, mostly preclinical, Cardiac repair, preclinical, Injury recovery, anecdotal

    02 Cardiac repair, preclinical

    • Cardiac repair: Tβ4 reduced fibrosis/scarring after cardiac injury in mice; recombinant Tβ4 in a 96-patient STEMI RCT reduced infarct area only in the early-dosed subgroup (overall not significant)animal + human RCT, mixed192021
    Side effects, quotes and full profile
  2. FOXO4-DRI

    Clears senescent cells, mice, Chemo toxicity protection, mice, Kidney function, mice

    03 Kidney function, mice

    • Kidney function: lowered plasma urea and creatinine in aged mice, indicating restored renal filtrationanimal32
    • Users report subjective improvements in some, nothing in othersanecdotal33
    Side effects, quotes and full profile
  3. 5-Amino-1MQ

    Fat loss, mice, Aged muscle regeneration, mice, Metabolic health, mice

    03 Metabolic health, mice

    • Obesity-related metabolic dysfunction improved with NNMT inhibition in miceanimal, 202434
    • Users report modest fat loss, less hunger or alertness; others nothinganecdotal/Reddit3536
    Side effects, quotes and full profile

Unstudied

No direct studies of this product or blend. Anecdote and component data only.

  1. Lipo-C

    Fat burning, unproven, Liver fat handling, nutrient data only, Energy from B12, unproven

    02 Liver fat handling, nutrient data only

    • Liver fat handling (choline component): choline is an essential nutrient; human choline deficiency causes reversible fatty liver, corrected by repletionhuman controlled data for the nutrient, not the injection22
    Side effects, quotes and full profile
  2. MIC

    Fat metabolism, unproven, Liver fat export, choline data, Insulin sensitivity, inositol data

    02 Liver fat export, choline data

    • Choline supports liver fat export: choline deprivation causes reversible fatty liver, and choline repletion reversed steatosis (human controlled depletion study and TPN RCT) - relevant only if deficient2324
    Side effects, quotes and full profile
  3. Tesamorelin + Ipamorelin

    Synergistic GH release, theoretical, Belly fat, via tesamorelin, Deeper sleep, anecdotal

    02 Belly fat, via tesamorelin

    • See Tesamorelin: visceral fat reduction (FDA-approved in HIV), liver fat and cognition datahuman RCTs2526
    Side effects, quotes and full profile

Questions about heart, liver & kidney

Which peptides are discussed for heart, liver & kidney?

Thymosin Alpha-1, Semaglutide, Tesamorelin, Tirzepatide, Retatrutide, Epithalon, TB-500, Lipo-C, MIC, Tesamorelin + Ipamorelin, HGH (Somatropin), Glutathione, FOXO4-DRI, 5-Amino-1MQ.

Which have the strongest evidence for heart, liver & kidney?

Labelled approved or trial-backed: Thymosin Alpha-1, Semaglutide, Tesamorelin, Tirzepatide, Retatrutide, HGH (Somatropin), Glutathione. Approval covers specific uses only.

Is any of this a recommendation?

No. humanpeptides.fyi makes no claims of its own. Each entry reports what cited sources say, with links. Talk to a licensed clinician.

Before you go in

humanpeptides.fyi is an educational index for adults. It summarizes and links to what others have published and reported about peptides and related compounds studied or used in humans. It is not medical advice and gives no dosing guidance. Many listed compounds are not approved for human use, and listing one is not a recommendation. Anecdotes are unverified. Images are AI-generated. By continuing, you agree to the Disclaimer and Terms of Use and the Privacy Notice.

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