TB-500

Synthetic fragment of thymosin beta-4, a protein found in blood platelets and wound fluid. Studied for its role in tissue repair signaling.

6 anonymous reports
TB-500 + BPC-157 StackPeptides for RecoveryBest Peptide StacksBPC-157TB-500Side EffectsWomen-SpecificPeptides for WomenPeptide Side EffectsPeptides for SleepPeptides for Gut HealthPeptides for Muscle GrowthPeptides for LongevityPeptides for Weight LossPeptides for Skin

Also known as:

tb500tb 500thymosin beta 4thymosin b4TB500

often mentioned with:

BPC-157GHK-Cu

browse topics:

Peptides for RecoveryTB-500 + BPC-157 Stack

community guides:

Peptides for RecoveryBest Peptide StacksReconstituting PeptidesInjecting Peptides

I'm not here to argue about whether the peptide "really" caused this. I'm just telling you what happened to my body, in order. five days of BPC + TB-500. that's all I ran. within two weeks: I couldn't have a normal bowel movement, nausea so bad I kept a trash bag next to the couch, and a panic attack severe enough that I took a Valium for the first time in years. then both knees, not one, BOTH, flared with what feels like tendonitis. muscle twitches. heart rate at 120 just lying in bed waking up. four hours of sleep a night for two solid weeks. and the part nobody warned me about as a woman: I had three periods in one month. first one normal, second one brown with cramps I never get, third one red with no cramps at all. like my hormones got picked up and shaken. I have zero scientific proof it was the peptide. I only know I was fine before the injection and a wreck after, and three weeks out I'm finally leveling back to normal. take that for whatever it's worth.

#120
Side EffectsWomen-SpecificTB-500 + BPC-157 StackPeptides for RecoveryPeptides for WomenBest Peptide StacksPeptide Side EffectsPeptides for SleepPeptides for Gut HealthTB-500

Multiple surgeries left me in enough pain that I haven't slept properly in years. ran a full course of BPC and TB-500 expecting the miracle everyone online promised and felt nothing. zero. couldn't tell if it was fake gear or if I'm just the one body it doesn't work on. now I want to try Tesa, CJC, MOTS, NAD

#116
Peptides for Muscle GrowthTB-500 + BPC-157 StackPeptides for LongevityPeptides for RecoveryBest Peptide StacksTB-500

Had 900k in peak crypto bullrun. Lost most of it by leverage trading. Got depressed, then into drugs, crashed, broke my hip, life was shit, discovered BPC-157 and TB500, full recovery, was amazed, started selling peptides, made 250k so far

#102
TB-500 + BPC-157 StackPeptides for RecoveryBest Peptide StacksBPC-157TB-500

I work in anti-doping. I cannot tell you for which org or which sport. what I can tell you: BPC-157 does not show up on any panel we run. TB-500 doesn't either. Neither does most of what gets sold as "research peptides." We know athletes are on them, we have known for years.. we test for what we can test for and we write the press releases about clean sports

#068
TB-500 + BPC-157 StackPeptides for RecoveryBest Peptide StacksBPC-157TB-500

Donated blood while on reta ghk bpc mots tb500

#052
Peptides for Weight LossTB-500 + BPC-157 StackPeptides for RecoveryPeptides for WomenBest Peptide StacksTB-500

I took bpc-157, tb-500, and ghk-cu post foot surgery and wish I started them the day after surgery not 5 weeks after. My recovery would have been much faster [edited: promotional content removed]

#020
TB-500 + BPC-157 StackPeptides for RecoveryPeptides for WomenBest Peptide StacksPeptides for SkinBPC-157TB-500

I am 32 years old and i will admit i had more fun than most in my twenties, parties, mansions, drugs, women, benders , the whole shabang... Fast forward to today and my health has taken a hit, bones hurt, weird sharp pains throughout my body, allergies, . i've seen literally over 3 dozen dr's and each one has given a conflicting opinion and none have found a solution to easy my pain, naturally i now have 0 trust towards traditional medicine & dr's iv'e started BPC amd TB500, it helps but honestly not much. Wish i could rewind my time, live healthier and be pain free without having to resort to peptides. Just reminder that you dont know what you have until you lose it and that health is #1

#015
TB-500 + BPC-157 StackPeptides for RecoveryPeptides for WomenBest Peptide StacksTB-500

Community Q&A

What is TB-500 used for?
Community use centres on injury recovery — tendons, ligaments, and muscle damage. Reports describe both chronic injuries that resisted other treatments and acute post-surgery recovery. A smaller set of accounts use it prophylactically during heavy training blocks. Subcutaneous injection near the injury site is the dominant protocol.
How long does TB-500 take to work?
Initial accounts describe reduced inflammation and improved mobility at 1–2 weeks. Structural healing — where users report returning to pain-causing activities — appears in accounts at 4–8 weeks. Chronic or severe injuries in community reports often require 8–12 week protocols before substantial improvement is noted.
Can you stack TB-500 and BPC-157 together?
This is one of the most common combinations in community reports. The two are frequently described as complementary — BPC-157 for localised healing signals, TB-500 for systemic repair and inflammation reduction. Accounts combining both consistently describe faster recovery than either alone.
What are the side effects of TB-500?
Community reports describe a generally clean profile. Fatigue and mild headache appear in early loading-dose accounts. A minority mention temporary lethargy around injection day. Cancer risk concerns circulate in the community based on TB-500's role in angiogenesis — though adverse outcomes are rarely described in accounts at typical protocols.
How do you inject TB-500?
Community consensus favours subcutaneous injection, often near the injury site, though systemic administration from the abdomen or thigh is also reported. Reconstitution convention is 1–2mL bacteriostatic water per vial. Injection frequency in accounts ranges from twice-weekly loading phases to weekly maintenance. Insulin syringes are the near-universal choice.
Can TB-500 help with hair loss?
A notable subset of community accounts report unexpected hair thickening or reduced shedding during TB-500 protocols — a finding that circulates particularly in longevity and hair loss communities. The proposed mechanism references thymosin beta-4's role in activating hair follicle stem cells, documented in preclinical research. Reports are observational and inconsistent: roughly equal numbers note this effect versus no change. Those using it specifically for hair tend to combine it with other interventions, making attribution to TB-500 alone difficult.