What is peptide therapy?
Peptide therapy is the targeted use of specific amino-acid sequences to influence cellular behavior. Unlike hormones — which flood the entire system — peptides are highly specific. A growth-hormone secretagogue only talks to the pituitary. A healing peptide only talks to fibroblasts and endothelial cells. That precision means fewer side effects and more predictable outcomes.
In clinical settings, peptides like Sermorelin and Tesamorelin have been studied for decades. In the research and wellness space, users build custom protocols around goals: fat loss, injury repair, sleep optimization, cognitive enhancement, or longevity.
How a protocol is structured
A peptide protocol has four parts: compound selection, dose, frequency, and cycle length. Getting any one of these wrong can blunt results or increase risk.
Measured in micrograms (mcg) or milligrams (mg). Most peptides are active at very low doses — often 100–1,000 mcg per injection.
Daily, every other day, or a few times per week. GH secretagogues are often dosed 5 days on, 2 off. Injury peptides may be daily until healed.
Morning, pre-workout, or before bed. GH peptides work best at night on an empty stomach. Healing peptides can be taken any time.
Typical cycles run 8–12 weeks followed by equal time off. Some bioregulators are used 20–30 days straight, 2–3 times per year.
Common therapy goals
GLP-1 and dual-agonist peptides suppress appetite and improve insulin sensitivity. AOD-9604 and 5-Amino-1MQ target fat cells directly without appetite effects.
Browse relevant peptides →These peptides accelerate angiogenesis, collagen synthesis, and immune modulation at injury sites. BPC-157 is particularly popular for tendons, ligaments, and gut lining.
Browse relevant peptides →GH secretagogues increase natural growth hormone pulses. MGF triggers local muscle repair. Follistatin blocks myostatin, the natural brake on muscle size.
Browse relevant peptides →DSIP deepens sleep architecture. Selank reduces anxiety without sedation. Semax improves focus and neuroprotection.
Browse relevant peptides →Epitalon targets telomerase. FOXO4-DRI clears senescent cells. Thymosin Alpha 1 modulates immune aging.
Browse relevant peptides →Safety considerations
Peptide therapy is generally well tolerated, but it is not risk-free. The most common issues are mild: water retention, temporary blood-sugar shifts, injection-site redness, and vivid dreams (with GH peptides). More serious risks — like immune reactions or unexpected hormone suppression — are rare but possible.
Best practices: use sterile bacteriostatic water, rotate injection sites, start at half the recommended dose, buy from a vendor that provides third-party testing, and always have a qualified clinician review your protocol.
Getting started with therapy
- 1Define your primary goal. Pick one — fat loss, healing, sleep, or longevity. Multitasking too many peptides dilutes results and complicates troubleshooting.
- 2Research the compound. Use our Encyclopedia to read the full profile, mechanism, pros, cons, and side effects.
- 3Calculate your draw. Our visual syringe calculator turns vial size and BAC water into an exact unit mark — no math required.
- 4Track and adjust. Keep a simple log of dose, timing, sleep, mood, and physical changes. Adjust based on response, not impatience.