TB-500

TB-500 is a synthetic fragment of Thymosin Beta-4 that owners most often ask about in relation to muscle, tendon, and connective-tissue recovery.

TB-500 corresponds to an active region of the naturally occurring protein Thymosin Beta-4, which is involved in cell migration and tissue remodelling throughout the body. Owners typically bring TB-500 to our veterinary team when discussing recovery in performance horses, active or working dogs, and animals coming back from a soft-tissue injury. The questions we hear most often concern comfort during rehabilitation and supporting the body's own repair processes over time. Whether TB-500 has any place in your animal's plan is a decision for our supervising veterinarian, made after reviewing the diagnosis, the animal's size and age, and everything else it is receiving. Amounts, frequency, and duration are set individually — there is no generic protocol. TB-500 is not approved by the FDA for use in animals and does not replace veterinary care.

04What Owners Ask About

What owners ask our veterinary team about TB-500

Owners in our program commonly bring up TB-500 in connection with:

Soft-tissue recovery
Tendon and ligament wellness
Circulation support
Muscle-recovery conversations
Comparative recovery wellness

“TB-500 (a thymosin-β4 fragment) is often discussed with our veterinary team in the context of soft-tissue recovery, circulation-related support, and general movement wellness across a range of animals.”

General information only, shared to help you prepare for a conversation with our veterinary team. It is not a treatment plan, dosing, or a guarantee of any outcome — your animal's plan is set by our supervising veterinarian.

§Dosage Chart

TB-500 — your animal dosing reference

Awaiting veterinary sign-off. These figures are finalised by our supervising veterinarian for your individual animal. Nothing here should be acted on until your veterinary team has reviewed your pet's species, weight, age, and health history.

TB-500 dosing reference for your animal, populated and approved by the supervising veterinarian.
Weight / stage	Amount	Frequency	Duration	Vet notes
Small animal	[VET-APPROVED VALUE]	[VET-APPROVED VALUE]	[VET-APPROVED VALUE]	[VET-APPROVED VALUE]
Medium animal	[VET-APPROVED VALUE]	[VET-APPROVED VALUE]	[VET-APPROVED VALUE]	[VET-APPROVED VALUE]
Large animal	[VET-APPROVED VALUE]	[VET-APPROVED VALUE]	[VET-APPROVED VALUE]	[VET-APPROVED VALUE]

Every protocol in our pet peptide program is set under the guidance of our supervising veterinarian. Contact our veterinary team to have a plan reviewed for your animal.

Vet-supervised program

TB-500 is offered through our vet-supervised pet and animal peptide program. Every plan — including whether TB-500 is appropriate for your animal — is set by our supervising veterinarian after reviewing your animal's history. Browse our program →

Veterinarian-Supervised Program

Every peptide protocol in this section is set and overseen by our supervising veterinarian. Nothing on these pages is a diagnosis, a prescription, or a substitute for examining your animal — dosing is determined individually after veterinary review of your pet's species, weight, age, medications and health history. Peptides are used alongside, never instead of, care from a licensed veterinarian. These products are not approved by the FDA for use in animals. If your animal is unwell, injured, or showing new symptoms, contact a veterinarian first.