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Peptides for Pets
Off-label vet peptide use is largely unregulated. Always consult a licensed veterinarian, use compounded formulations from a licensed pharmacy, and observe competition-withdrawal rules (USEF, FEI, racing).
Dogs (Canine)
12 peptidesBPC-157
SubQ or oral
Post-orthopedic surgery, IBD, cruciate rehab, chronic tendon injury.
Dose2.5–10 mcg/kg once daily
Use compounded veterinary formulations from a licensed compounding pharmacy.
TB-500 (Thymosin β4)
SubQ or IM
Ligament/tendon rehab, cardiomyopathy support (research).
Dose2–5 mg / 30 kg dog weekly (loading) → every 2 wks (maintenance)
GHK-Cu (Copper Peptide)
Topical or SubQ
Chronic wound repair, hot spots, post-surgical scar management, hair regrowth on alopecic patches.
DoseTopical 2–5% serum daily; SubQ 1–2 mg per 20 kg 2–3×/wk
Ipamorelin
SubQ
Post-op recovery, appetite stimulation, coat quality.
Dose1–2 mcg/kg 1–2× daily
CJC-1295 (with DAC)
SubQ
Body composition, recovery.
Dose0.5–1 mcg/kg weekly
Semaglutide
SubQ
Severe obesity refractory to diet/exercise.
DoseEmpirical — starting 0.02 mg/kg weekly, titrate
Not veterinary-approved. Pancreatitis risk in predisposed breeds (Schnauzers, Yorkies).
AOD-9604
SubQ
Obesity, osteoarthritis adjunct.
Dose2–5 mcg/kg once daily fasted
Epithalon
SubQ
Geriatric quality-of-life.
Dose5–10 mg / 20 kg SubQ daily × 10–20 day courses
Thymosin Alpha-1
SubQ
Chronic infection, atopic dermatitis.
Dose1 mg / 20 kg SubQ 2× weekly
KPV (Lys-Pro-Val)
Oral
IBD, chronic diarrhea.
Dose500 mcg orally 1–2× daily
MOTS-c
SubQ
Metabolic support, geriatric.
Dose5–10 mg SubQ 2× weekly
SS-31 (Elamipretide)
SubQ
DCM, mitochondrial myopathy (research).
DoseResearch protocols only
No approved veterinary formulation.
Cats (Feline)
6 peptidesBPC-157
SubQ
IBD, chronic gastritis, wound recovery.
Dose2–5 mcg/kg once daily
Cats metabolize peptides differently — start at low end and monitor.
TB-500 (Thymosin β4)
SubQ
Wound recovery, HCM adjunct (research).
Dose0.5–1 mg per cat weekly
Limited feline data; conservative dosing.
GHK-Cu (Copper Peptide)
Topical
Chronic non-healing wounds, dermatitis.
DoseTopical 2% only; injection generally avoided
Cats groom — use collar/cone to prevent ingestion; copper is more toxic to cats than dogs.
Semaglutide
n/a
Cats are obligate carnivores — GLP-1 physiology differs; risk > benefit.
DoseNot recommended
Do not use.
Thymosin Alpha-1
SubQ
FIV, FeLV, FIP adjunct (research use).
Dose0.2–0.4 mg per cat SubQ 2× weekly
Consult feline internist; not a substitute for antivirals.
KPV (Lys-Pro-Val)
Oral
IBD, chronic enteritis.
Dose250 mcg orally 1–2× daily
Horses (Equine)
9 peptidesBPC-157
SubQ; sometimes near-injury IM
Tendon/ligament rehab, suspensory injuries, gastric ulcers.
Dose5–10 mcg/kg once daily (or 500–1500 mcg total)
USEF/FEI banned substance during competition. Withdrawal times not established.
TB-500 (Thymosin β4)
IM (gluteal or pectoral)
Tendon, ligament, suspensory injuries; back soreness.
Dose10–20 mg IM weekly loading × 4 wks, then every 2 wks
Prohibited in racing (ARCI Class 2) and FEI competition.
GHK-Cu (Copper Peptide)
Topical or SubQ near wound
Proud flesh, chronic ulcerated wounds, laminitis support (research).
DoseTopical liberal application; injectable 5–10 mg SubQ
Ipamorelin
SubQ
Recovery support, coat/hoof quality.
Dose150–300 mcg per horse SubQ pre-training
Prohibited under racing/FEI rules.
CJC-1295 (with DAC)
SubQ
GH-axis support in aged performance horses.
Dose500–1000 mcg per horse weekly
Prohibited in competition; extremely long half-life makes withdrawal impractical.
AOD-9604
SubQ
Metabolic syndrome, joint support.
Dose500 mcg per horse daily
Epithalon
SubQ
Aged horse recovery.
Dose50–100 mg per horse daily × 10-day course
MOTS-c
SubQ
Metabolic syndrome, insulin resistance.
Dose10–20 mg SubQ 2× weekly
PEG-MGF
Local SubQ
Muscle/tendon rehab.
Dose1–2 mg local SubQ over injured muscle 1–2× weekly
Prohibited in racing/FEI competition.
Small Mammals & Exotics
1 peptideEducational reference only. Not veterinary medical advice. Peptide use in animals is off-label in virtually every jurisdiction. Doses shown are compiled from veterinary sports-medicine practice and case reports; confirm with your DVM.