Educational information only — not medical advice. Most peptides here are not FDA-approved.

Compare peptides

Choose two or three to see them side by side. Everything comes from each peptide’s own page.

Peptide 1

Peptide 2

Peptide 3 (optional)

Compare	BPC-157 The most-discussed healing peptide, built on a stomach-protein fragment.	TB-500 Synthetic fragment of thymosin beta-4, used for whole-body recovery.
Category	Recovery & Repair	Recovery & Repair
Evidence	2/5Dozens of rodent studies; only tiny human pilot data (e.g. knee pain retrospective, IV safety pilot).	2/5Full-length Tβ4 has some human trials (eye, wound); TB-500 fragment is mostly animal and anecdotal.
FDA status	Not FDA-approved for any use	Not FDA-approved
WADA (sport)	Banned	Banned
Also known as	Body Protection Compound-157, Bepecin, PL 14736	Thymosin Beta-4 fragment, Tβ4 (Ac-SDKP / LKKTETQ region)
How it works	Appears to up-regulate growth-factor receptors (VEGFR2, growth hormone receptor), promote new blood vessel formation (angiogenesis), and modulate nitric-oxide signaling. Exact human pharmacology is not established.	Binds actin, helping cells migrate to injured tissue; promotes angiogenesis and reduces inflammation in models. Full-length thymosin beta-4 has been studied in dry eye and wound healing trials; the TB-500 fragment itself has little human data.
Half-life	Short (hours); effects thought to be local + signaling driven	Not well characterized; dosed twice weekly by convention
Commonly reported doses	Standard: 250 mcg, 1–2× daily Higher: 500 mcg, 1–2× daily Cautious start: 200 mcg, once daily	Loading phase: 2 mg, 2× per week Maintenance: 2 mg, once weekly or every other week
Route	Subcutaneous, near injury site	Subcutaneous
Good once mixed	~28 days in the fridge	~28 days in the fridge
Top side effects	Injection-site redness or itch Mild nausea or dizziness Fatigue or flushing	Head rush or lightheadedness Temporary fatigue Injection-site irritation
Lowest price per mg	$2.40 (10 mg vial, 40% off)	$2.40 (10 mg vial, 40% off)
Latest lab purity	99.61% (lot BP0002)	99.51% (lot TB0002)
	Full page Shop ↗	Full page Shop ↗

Popular comparisons