⚠ These are commonly referenced community protocols and do not constitute medical advice. Always consult a qualified healthcare provider before use.
Peptide
Common Dose
Frequency
Route
Notes
BPC-157
250–500 mcg
1–2× daily
SubQ / oral
Near injury site; cycle 4–6 wks
TB-500
2–2.5 mg
2× weekly
SubQ / IM
Loading phase 4–6 wks, then maintenance
CJC-1295 + Ipamorelin
100 mcg each
3× weekly
SubQ
Inject before bed on empty stomach
Tesamorelin
1–2 mg
Daily
SubQ
FDA-approved for HIV lipodystrophy
Semaglutide
0.25–2.4 mg
Weekly
SubQ
Titrate up slowly to minimize GI sides
Tirzepatide
2.5–15 mg
Weekly
SubQ
Start low; increase every 4 weeks
Retatrutide
1–12 mg
Weekly
SubQ
Still in trials; use with caution
PT-141
0.5–2 mg
As needed
SubQ / nasal
Use 1–2 hrs before; start low
Epithalon
5–10 mg
Daily × 10–20 days
SubQ / IV
Typically cycled 1–2× per year
Selank
250–500 mcg
1–2× daily
Nasal / SubQ
Anxiolytic; cycle 2 wks on / 2 off
GHK-Cu
1–2 mg
Daily
SubQ / topical
Topical for skin; SubQ for systemic
Thymosin Alpha-1
1.5 mg
2× weekly
SubQ
Immune support; 4–6 wk cycles
Vendor & Sourcing Info
⚠ Disclaimer — Peptides sold by the vendors below are for research purposes only and are not approved for human use by the FDA unless otherwise noted. We do not endorse any vendor and are not affiliated with or compensated by any of the links below. Always verify third-party lab testing (COA) before purchasing.
Bacteriostatic water (BAC water) is sterile water containing 0.9% benzyl alcohol, which prevents bacterial growth. It's used to reconstitute lyophilized (freeze-dried) peptide powder into a solution for injection. Regular sterile water works for single-use but BAC water allows a vial to be used over several weeks safely.
Lyophilized (dry) peptides should be stored in a freezer and can last 1–2 years. Once reconstituted with BAC water, store in the refrigerator (2–8°C / 36–46°F) and use within 4–6 weeks. Avoid repeated freeze-thaw cycles and keep away from light. Never leave reconstituted peptides at room temperature for extended periods.
For subcutaneous injections, a 29–31 gauge, 0.5 inch (12mm) needle is most commonly used. A 1mL (100-unit) insulin syringe is standard and works well for most peptide doses. If your doses are very small (under 10 units), a 0.5mL (50-unit) syringe gives more precision. Use our Calculator page to figure out exactly how many units to draw.
SubQ (subcutaneous) means injecting into the fat layer just under the skin — typically the belly, love handles, or thigh. IM (intramuscular) means injecting directly into muscle tissue. Most peptides are administered SubQ as it's easier, less painful, and provides sufficient absorption. Some peptides like TB-500 are occasionally given IM for faster onset.
The legal status varies by country and intended use. In the US, most research peptides are legal to purchase for research purposes but are not approved by the FDA for human use (exceptions include Semaglutide and Tesamorelin which are FDA-approved drugs). In Australia, many peptides are Schedule 4 substances requiring a prescription. Always check the laws in your jurisdiction before purchasing or using peptides.
Always look for a Certificate of Analysis (COA) from a third-party lab using HPLC (High-Performance Liquid Chromatography) or Mass Spectrometry testing. This verifies purity and identity. Reputable vendors provide batch-specific COAs on their website. Be skeptical of vendors who can't provide recent, third-party lab results.
Many peptides can be stacked, and some are commonly sold as pre-made blends (e.g. BPC-157 + TB-500, CJC-1295 + Ipamorelin). However, stacking increases complexity and potential for interactions. Common well-tolerated stacks include healing peptides (BPC-157 + TB-500) and GH secretagogue combinations. Always introduce one peptide at a time to identify any individual reactions before stacking.