Healing that has stalled? See if thymosin beta-4 (TB-4), a repair peptide your body already makes, can help you recover.
Common goals Treasure Valley patients bring to us:
Who we serve: Active adults and slow healers from Boise, Meridian, Eagle, Nampa and Star. See all peptide therapy in Boise.
Free 15-minute consultation · No obligation
Physician-Prescribed
Medical evaluation before treatment
Made in the USA
Every peptide we prescribe is made in the United States
Meridian Clinic
Serving patients throughout the Treasure Valley
Thymosin beta-4 (TB-4) is a peptide your body makes naturally. It is a chain of 43 amino acids.
Comparing the two? See our TB-500 page.
Patients use TB-4 to support:
Results vary. Dr. Southern will tell you plainly what to expect.
Dr. Ashley Southern, NMDYour physician at Alturas Medical Weight Loss in Meridian
Great fit for
Not a fit
Our clinic is at 1532 W Cayuse Creek Dr in Meridian, about 15–20 minutes from Boise.
What people hope for, and what research actually shows.
Sources
Where this information comes from
Last reviewed: October 2026
Not FDA-approved
TB-4 is not an approved drug in the U.S. or anywhere else.
Physician-guided
Every plan starts with an evaluation, with follow-up as you go.
Banned in sport
WADA bans TB-4 at all times. Tell us if you are a tested athlete.
Patients come to our Meridian clinic from across the Treasure Valley, including Boise, Eagle, Nampa, Star, Middleton, Kuna, Caldwell and Garden City.
We also offer medical weight loss and hormone therapy.
Location: 1532 W Cayuse Creek Dr, Meridian, ID 83646
Phone: (208) 690-2040
Book your TB-4 consultation today.
Dr. Ashley Southern is the physician and co-founder of Alturas Medical Weight Loss. She evaluates peptide therapy within the context of each patient’s medical history, medications and laboratory results.
The goal is to determine whether a specific therapy is medically appropriate.
TB-4 is one of several peptides we offer at our Meridian clinic, near Boise. Every plan starts with a medical evaluation. Explore our full peptide therapy in Boise program or the related therapies below.
Two peptides studied for their effects on growth hormone signaling, through different pathways. Human data on each is limited, and the combination has not been studied in humans.
A GHRH analog studied for its effects on visceral adipose tissue and body composition.
Bremelanotide, which acts on melanocortin receptors in the brain. The FDA-approved version (Vyleesi) is approved for low sexual desire in premenopausal women; other uses are off-label.
A peptide that has been studied, mostly in animal research, for tendon, ligament and gut-lining repair. Used in certain physician-supervised recovery protocols.
An investigational peptide fragment of thymosin beta-4, studied primarily in laboratory research involving tissue repair and wound healing.
A combination of BPC-157 and TB-500 considered in physician-supervised recovery protocols.
A naturally occurring copper peptide studied for collagen production and skin repair. Most human studies used skin creams.
Alturas Medical Weight Loss in Meridian, about 15 to 20 minutes from Boise, offers physician-guided TB-4 consultations. Call (208) 690-2040 to book.
TB-4 is the full 43-amino-acid peptide your body makes. TB-500 is a short synthetic fragment of it. Neither is FDA-approved.
No. TB-4 is not an approved drug, and compounded medications are not FDA-approved.
Research is still early. Small trials of TB-4 eye drops and skin gel had mixed results, and injections have not been studied in human trials. Dr. Southern can tell you whether it fits your goals.
TB-4 eye drops and skin gel were well tolerated in human trials. The safety of injected TB-4 has not been studied in human trials. A clinician should review your health history first.
No. TB-4 is banned in sport at all times under World Anti-Doping Agency rules. Tested athletes should not use it.
Free 15-minute consult
Meet our Meridian medical team. Here is what happens next:
Prefer to talk? Call or text (208) 690-2040
For men and women
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