Wolverine Stack Dosage: amounts used in animal studies
The first researchers chose these amounts for rats and mice while studying repair. Neither compound has an approved human dose, and this page doesn't give one.
What BPC-157 and TB-500 amounts went to rats and mice
Researchers set each BPC-157 animal amount by weight. Rat tendon and ligament work used 10 micrograms, 10 nanograms, or 10 picograms per kilogram of rat body weight [1][2]. Those units mean millionths, billionths, or trillionths of a gram. Other rats drank water with 0.16 micrograms in each milliliter, about 12 milliliters a day, or got 10 micrograms per kilogram by mouth [6][7]. Burn cream held 1 microgram in each gram, or g [20]. Stomach studies used 200–800 nanograms per kilogram [11]. None of these figures becomes a dose for you.
Many protein pieces break apart quickly in stomach juice. Two natural gut juices usually help cut them up. BPC-157 stayed whole in human stomach juice for more than 24 hours [18]. That BPC-157 dish finding may explain the rat result after swallowing it, but it cannot set your safe amount.
TB-500 comes from thymosin beta-4. Most amount studies used whole thymosin beta-4 instead of the short TB-500 form. Mice born with weak muscle got 150 micrograms of thymosin beta-4 twice each week for 6 months by a belly shot [16]. That was a plan for sick mice, not you. In Phase 1, researchers first checked basic safety with a vein dose. Phase 2 wound trials looked for benefit and kept checking harm after thymosin beta-4 went on skin. The short TB-500 form and full protein aren't a sound match.
Wolverine Stack Dosage reference: amounts and time in each study
These are amounts from published studies. They belong to those tests and don't give you an amount to use. Keep the animal findings apart from the human wound work.
BPC-157 — rat muscle, tendon, and ligament studies
- Researchers used a belly injection of 10 picograms to 10 micrograms for each kilogram the rat weighed, each day for 7–90 days [1][2].
- Drinking water held 0.16 micrograms per milliliter, or rats got 10 micrograms per kilogram by mouth, for 30–90 days [6][7].
- Burn cream held 1 microgram per g and went on each day for 7–14 days [20].
BPC-157 — rat stomach studies
- A muscle shot or stomach liquid used 200–800 nanograms per kilogram, once or each day [11].
Thymosin beta-4 — mouse muscle study
- A belly shot gave 150 micrograms twice each week for 6 months [16].
Thymosin beta-4 — human Phase 2 wound studies, which test benefit and keep checking safety
- A gel or ointment went on leg and pressure sores [22].
These amounts remain study facts, not a human dosing plan. They only show what each paper tested. The Wolverine stack dosage page also explains what researchers learned about time in the body.

Wolverine stack protocol: animal plans don't direct your care
The Wolverine stack research protocol — as a concept derived from the published literature — describes what individual studies have used for each component, not a unified validated protocol for the combination.
The name Wolverine (research blend) does not alter the access boundary: Promise Peptides (mypromise.com) operates in licensed, clinician-led prescription care, while this page remains an index of published study parameters for the two components.
For BPC-157, the most reproducible preclinical protocol across independent publications is daily intraperitoneal injection at 10 µg/kg starting at the time of injury induction, with functional and histological endpoints assessed at 7 days (acute) to 90 days (chronic repair) [1][2][6]. Some models applied BPC-157 orally in drinking water, demonstrating equivalent efficacy via a different route [6][7].
For thymosin beta-4, the most extended preclinical protocol used twice-weekly intraperitoneal injections of 150 µg over 6 months in a chronic disease model [16]. Acute wound healing protocols used topical application with assessment at 4–7 days [22].
The Wolverine stack protocol overview does not represent a validated co-administration schedule — no published study has defined one.

What BPC-157 to TB-500 mix has been tested
No paper has found the best BPC-157:TB-500 mix. People often describe equal amounts by weight, which they call a 1:1 ratio. Those reports are from people who used the compounds for research. They aren't results from a fair trial with an untreated group [18]. That mix has never had a trial for benefit.
The separate animal papers used very different amounts. Some BPC-157 tests went as low as 10 picograms for each kilogram an animal weighed. One TB-500 mouse study used 150 micrograms of thymosin beta-4 in each shot. Most papers used the whole protein instead of short-form TB-500. Those studies can't yield a fair mix.
How long Wolverine stack animal studies watched for change
Study length changed with the injury. BPC-157 tendon and ligament work checked repair at 7-day marks, then tested strength at 28–90 days [1][2]. In a BPC-157 spinal cord study, care began on day 4 after injury. Researchers checked the rats again by day 15 [9].
A thymosin beta-4 muscle study lasted 6 months [16]. The mice had a lasting muscle disease, so the team needed time to count new fibers. That long study doesn't set a course for people. It only says how long the mice were watched.
No paper sets one length for the pair. Reports from people using the compounds for research aren't controlled trial results. The stories often mention 4–12 weeks. A fair test hasn't found the best length.
How quickly BPC-157 left rats and dogs
Researchers tracked BPC-157 in rats and dogs. After a vein dose, half was gone in less than 30 minutes. The average was 15.2 minutes in rats and 5.27 minutes in dogs [17]. A muscle shot put just 14–19% into rat blood, compared with 45–51% in dogs. That gap shows the two animals handled the shot differently. It can't predict what your body would do. Both animals broke the compound down and passed it in urine and bile [17].
After rats swallowed BPC-157, some tests could track signs of it for about 66–69 hours. That longer figure wasn't another measure of how fast half left the blood. It followed a different part of the compound's path through the body [18]. Your gut may not act like a rat's gut.
People haven't had this kind of tracking study. BPC-157 has no published Phase 1 study, the first stage that checks basic safety and follows a drug through the body. Animal timing can't set a time for you.
How often each animal study gave a compound
Animal studies gave BPC-157 each day or every other day. Depending on the test, a shot went into the belly or just under the skin. Achilles tendon and ligament work used a belly shot each day [1][2]. A thymosin beta-4 muscle study used one twice each week [16].
Those schedules belong to animal studies. Neither compound has an approved human schedule or FDA approval for treating people. The dosage parameters in animal studies list the timing from each paper. They aren't directions for you.
When injured animals began to show change
With recent animal injuries, researchers saw signs of repair at 7–14 days. They tested walking and tissue strength at 28–90 days [1][2]. Those were set times for examining the animals. They don't show when you would feel better.
After a vein dose, half the BPC-157 left the blood within 30 minutes [17]. Some tissue changes lasted days or weeks. Researchers don't know why a short stay in blood may lead to a longer change. No sound human timeline exists for the pair.
What the studies found about morning or night
Published work hasn't compared morning with night for BPC-157 or TB-500. Animal studies gave shots at set times, but didn't test the clock itself. The papers therefore can't name a better hour for you. No sound human answer exists.
Why animal schedules don't set a schedule for people
Animal studies used shots each day, every other day, or twice each week. BPC-157 muscle and joint work most often used a belly shot each day [1][2][6]. Mice with lasting disease got thymosin beta-4 twice each week [16]. Researchers don't agree on one schedule. No controlled human trial has set one.