Retatrutide
Clinical evidenceA triple-target experimental drug producing bariatric-surgery levels of weight loss — still awaiting approval.
What it is
Retatrutide is an experimental peptide that hits three receptors at once: GLP-1, GIP, and glucagon. It is Lilly's follow-up to tirzepatide, and the novel twist is the glucagon arm — the same hormone best known for raising blood sugar, repurposed here to help burn energy alongside appetite control.
How it works
The GLP-1 and GIP arms deliver tirzepatide-grade hunger suppression. The glucagon arm adds a modest boost to the calories you burn at rest. Together they produced the deepest weight-loss numbers ever seen in an obesity trial — approaching what people associate with bariatric surgery, from a weekly shot.
What people report
- ✦Up to roughly 28-30% average weight loss over 1-2 years in trials
- ✦Strong reduction in liver fat in early studies
- ✦May help sleep apnea and knee osteoarthritis (results pending)
- ✦Larger weight effect than any approved drug so far
Typical use
Not yet approved, so there is no official protocol. When it launches, expect the same once-weekly, dose-titration model as its siblings.
Dosing reference
None established yet. It is not approved, and gray-market versions exist despite the risk — the real data is still being collected.
Reference only — not a recommendation. Verify via primary sources.
Watch for
Some users get a tingling sensation in the hands and feet, and the glucagon arm can raise heart rate. A meaningful share of people stop the top dose because of side effects. Long-term safety is genuinely unknown.
Notes
The 2026 phase-3 readout is real data, not projection — but approval, and safety judgment, still belong to the full trial package rather than the gray market, which is three years ahead of the FDA here.
Reconstitution math for Retatrutide
Typical vial: 10mg dissolved in 2ml BAC water. Adjust to see the math.
Reconstitution Calculator
Understand the math — pick a peptide, see its info, and how reconstitution works.
BPC-157
Healing & recoveryThe repair peptide everyone in the gym talks about — powerful in rats, still unproven in humans.
BPC-157 is a short chain of 15 amino acids. It is not a natural hormone your body makes on its own. It was built in a lab as a fragment of a larger 'body protection compound' first found in human stomach juice in the 1990s. Vendors sell this engineered piece, not a natural sequence.
How it works (optional detail)
In animal studies, BPC-157 seems to nudge faster blood-vessel growth at injured spots, which is the body's first step in healing. It also appears to quiet inflammation. The idea is that by tickling repair pathways rather than ordering one single thing, it helps tendons, ligaments, and gut lining recover speedier than they would on their own.
Dosing reference: Common community dosing is a few hundred micrograms a day, usually injected near the site or into belly fat. There is no approved human dose.
Reconstitution math
Concentration: 5.000 mg/ml (10mg in 2ml)
To get 1mg, draw:
0.200 ml
≈ 20 units on a U-100 insulin syringe
This calculator shows how the arithmetic works using common vial sizes. It is an educational illustration — not a dosing recommendation. Always follow the specific product's instructions and verify with primary sources or a qualified professional.
Educational content — not medical advice.