Peptide therapy uses short chains of amino acids that act as signaling molecules to influence specific biological processes such as tissue repair, metabolic regulation, and growth hormone release. At Pinnacle Performance & Wellness in Lubbock, Texas, peptide protocols are prescribed individually by Stuart Riggins, FNP-C, after evaluation and lab work. Many peptides are compounded and prescribed off-label, and candidacy is a clinical decision — not a menu selection.
Medically reviewed by Stuart Riggins, FNP-C — Pinnacle Performance & Wellness, Lubbock, TX

The Basics
A peptide is a short chain of amino acids — shorter than a protein, longer than a single amino acid. Your body already makes thousands of them, and several are drugs you have heard of: insulin is a peptide, and so is semaglutide. What distinguishes therapeutic peptides is specificity. Rather than broadly altering a system, a peptide binds a particular receptor and nudges one signaling pathway.
That specificity is the appeal and also the limit. A peptide that acts on one pathway will not fix a problem driven by a different one, which is why Pinnacle runs labs and a full history before prescribing rather than selling stacks. It is also why the honest answer about many peptides is that the human evidence is thinner than the marketing. We would rather tell you that up front than sell you a protocol you did not need.
Regulation
This is the part most clinic websites skip.
Some peptides are FDA-approved drugs with substantial human trial data — semaglutide and tirzepatide, for instance. Many others discussed in performance and longevity settings are not FDA-approved for the uses described, are prepared by compounding pharmacies, and are prescribed off-label. In 2023 the FDA placed a number of peptides, including BPC-157, into Category 2 of its bulk-substances review — substances with significant safety risks identified for compounding use — which restricts what compounding pharmacies may legally prepare. Availability for some compounds is therefore limited or has changed since you last read about them online.
Two practical consequences. First, anyone selling you “research chemical” peptides online without a prescription is operating outside that framework entirely, with no verification of what is in the vial. Second, a clinic that will prescribe you anything you ask for by name is not doing clinical work. At Pinnacle, what can be prescribed is determined by your evaluation, current regulatory status, and what a licensed compounding pharmacy can legally supply.
Scope
| Category | What it targets | Regulatory status |
|---|---|---|
| Metabolic / GLP-1 (semaglutide, tirzepatide) | Appetite regulation, glucose handling, body composition | FDA-approved for specific indications; off-label outside them. See Medical Weight Loss. |
| Tissue repair (e.g. BPC-157, TB-500) | Soft tissue and connective tissue repair signaling | Not FDA-approved for these uses. Compounding is restricted; availability varies. |
| Growth hormone secretagogues | Endogenous growth hormone release, sleep, recovery | Not FDA-approved for performance, body composition, or anti-aging use. |
| Other signaling peptides | Immune, cognitive, and longevity pathways | Varies by compound; most are not FDA-approved for these uses. |
Which of these — if any — is appropriate for you depends on your labs, your history, your medications, and your goals. Some patients are better served by fixing a hormone deficiency, a sleep problem, or a training and nutrition gap first, and are told so.
The Process
Full medical history, current medications and supplements, training load, injury history, sleep, and specific goals. In person in Lubbock or by telehealth.
Metabolic panel, hormone panel where relevant, inflammatory markers, and anything your history indicates. Peptides are not prescribed to an unmeasured system.
What has human trial data behind it, what has animal data only, and what is mechanistically plausible but unproven. You should know which category your protocol sits in.
Where indicated, dispensed through a licensed compounding pharmacy, with injection technique, storage, and dosing schedule taught directly.
Scheduled reassessment with repeat labs where appropriate. Protocols are time-limited by design, not open-ended subscriptions.
Candidacy
Peptide therapy is not prescribed during pregnancy or breastfeeding, to minors, or to patients with an active malignancy or a history of certain cancers, given that several of these compounds act on growth and repair signaling. It is not prescribed to patients seeking a specific compound they read about online without an evaluation, and it is not an alternative to treating an underlying diagnosis.
Competitive athletes need to know that several of these substances — including growth hormone secretagogues and BPC-157 — appear on the WADA Prohibited List and on NCAA banned-substance categories. If you are drug tested by any sanctioning body, tell us at the consultation before anything is prescribed.
Common Questions
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Disclaimer
All information on this website is intended for instruction and informational purposes only. The authors are not responsible for any harm or injury that may result. Significant injury risk is possible if you do not follow due diligence and seek suitable professional advice about your injury. No guarantees of specific results are expressly made or implied on this website.