Quick Answer
Injectable peptides are the standard route for any peptide with a systemic target, because subcutaneous injection delivers the full dose to circulation without the digestive breakdown that destroys most peptides taken by mouth. Everything on this page ships pre-reconstituted as a finished solution rather than as a freeze-dried powder, so there is no bacteriostatic water to source and no mixing step. Sterile injectables carry a 90-day beyond-use date under USP <797>, and compounded GLP-1s up to 120.
Subcutaneous injection peptides shipped pre-reconstituted from Optimal Balance Pharmacy. Includes GLP-1s, GH secretagogues, recovery peptides, and longevity stacks.
Weight Loss & Metabolic
See all weight loss & metabolic peptides →Semaglutide/B12
From $25/1.2mgThe gold standard GLP-1 for weight management, paired with B12 for energy support.
Semaglutide/B6 + Glycine
From $175/10mgGlycine-buffered semaglutide for patients who don't tolerate the B12 cofactor.
Glycine carrier: reserved for patients with B-12 sensitivity, methylation issues, or histamine reactions. Higher carrier cost reflects formulation complexity, not the peptide itself.
Semaglutide Microdose
$25/1.2mgA gentle once-weekly microdose of compounded semaglutide with vitamin B12, for a slower, lower-side-effect approach to GLP-1 support.
Tirzepatide/B12
From $45/12mgDual GIP/GLP-1 receptor agonist for enhanced metabolic support with B12.
Tirzepatide/B6 + Glycine
From $225/60mgGlycine-buffered tirzepatide for patients who don't tolerate the B12 cofactor.
Glycine carrier: reserved for patients with B-12 sensitivity, methylation issues, or histamine reactions. Higher carrier cost reflects formulation complexity, not the peptide itself.
Tirzepatide Microdose
$45/12mgA gentle twice-weekly microdose of compounded tirzepatide with vitamin B12, for a slower, lower-side-effect approach to dual-pathway GLP-1 support.
AOD-9604
$80/6mgA modified fragment of human growth hormone that targets fat metabolism without growth effects.
Lean Stack (AOD-9604/MOTs-C/Tesamorelin/Ipamorelin)
$125/36mgFour-peptide body composition stack: lipolysis, mitochondrial support, visceral fat targeting, and clean GH pulse in one vial.
5-Amino-1MQ
$80/25mgAn NNMT inhibitor that activates cellular energy pathways to boost metabolism.
Lipo-B (Cyanocobalamin/MIC)
From $30/10mlA lipotropic injection combining cyanocobalamin (B12) with methionine, inositol, and choline for fat metabolism.
Lipo-C (Cyanocobalamin/MIC/L-Carnitine)
From $35/10mlEnhanced lipotropic injection adding L-carnitine to cyanocobalamin and MIC for improved energy and fat transport.
Muscle Growth & Body Composition
See all muscle growth & body composition peptides →CJC-1295/Ipamorelin
$100/10mg+10mgThe gold standard growth hormone secretagogue stack for lean muscle and recovery.
Sermorelin
$80/15mgA GHRH analog that stimulates your pituitary to produce more growth hormone naturally.
Sermorelin/Ipamorelin
$100/15mg+18mgCombined GHRH + ghrelin mimetic for enhanced growth hormone stimulation.
Tesamorelin
$100/15mgFDA-studied GHRH analog known for reducing visceral fat and improving body composition.
Tesamorelin High-Dose
$200/24mgConcentrated tesamorelin for advanced users on extended protocols.
Tesamorelin/Ipamorelin
$120/12mg+6mgPremium GH secretagogue combination for maximum visceral fat reduction and body recomposition.
IGF-LR3
$145/1mgA long-acting IGF-1 analog for targeted muscle growth and recovery at the cellular level.
Recovery & Repair
See all recovery & repair peptides →BPC-157
$80/15mgA body protection compound that accelerates tissue repair in tendons, ligaments, muscle, and the GI tract.
Wolverine Stack
$100/15mg+15mgThe Wolverine Stack: BPC-157 and TB-500 in one vial. Local tissue repair plus systemic recovery in a single foundation healing peptide.
BPC-157/TB-500/KPV
$120/15mg+15mg+15mgTriple-action healing stack adding KPV's anti-inflammatory power to the BPC/TB foundation.
KLOW
$120/15mg+50mg+15mg+15mgKLOW: BPC-157, TB-500, GHK-Cu, and KPV combined in a single vial. The 4-peptide comprehensive healing stack for tissue repair, recovery, and inflammation control.
ARA-290
$80/30mgAn innate repair receptor agonist that promotes tissue repair and neuroprotection.
GHK-Cu
$80/50mgA copper peptide that promotes wound healing, collagen synthesis, and tissue remodeling.
Thymosin Alpha-1
$80/15mgAn immune-modulating peptide that enhances T-cell function and supports immune recovery.
Longevity & Anti-Aging
See all longevity & anti-aging peptides →NAD+ Injectable
$100/1000mgThe cellular energy molecule. Injectable NAD+ for direct bioavailability and cellular rejuvenation.
Epithalon
$80/10mgA telomerase-activating peptide that may help maintain telomere length. A key marker of cellular aging.
Epithalon High-Dose
$130/50mgHigh-concentration Epithalon for accelerated telomerase activation protocols.
GHK-Cu
$80/50mgA copper peptide that activates thousands of regenerative genes. Dual-listed for longevity benefits.
GHK-Cu + Epithalon
$100/50mg+10mgCombined copper peptide and telomerase activator for comprehensive cellular anti-aging.
MOTS-C
$80/10mgA mitochondrial-derived peptide that enhances metabolic function and exercise capacity.
MOTS-C High-Dose
$130/50mgHigh-concentration MOTS-C for intensive mitochondrial and metabolic optimization protocols.
Glutathione
$20/2000mgThe body's master intracellular antioxidant, delivered subcutaneously for antioxidant and detox support.
Elamipretide (SS-31)
$100/75mgA mitochondria-targeted peptide that stabilizes the inner membrane for optimal energy production.
FOXO4-DRI
$80/10mgA senolytic peptide that selectively clears senescent "zombie" cells to support healthy aging.
Cognitive & Brain Health
See all cognitive & brain health peptides →DSIP
$80/10mgDelta Sleep Inducing Peptide. Naturally promotes deep, restorative sleep architecture.
NAD+ Injectable
$100/1000mgInjectable NAD+ dual-listed for its significant cognitive and neuroprotective benefits.
Sexual Health & Vitality
See all sexual health & vitality peptides →PT-141 (Bremelanotide)
$75/10mgThe only FDA-studied peptide for hypoactive sexual desire. Works through central nervous system pathways.
Gonadorelin
$35/1mgSynthetic GnRH that stimulates your own LH and FSH to maintain testicular function and fertility on TRT.
Melanotan II
$80/5mgA melanocortin agonist that stimulates tanning and libido, dosed low and slow to limit nausea.
Kisspeptin
$80/5mgA hypothalamic hormone that naturally stimulates the reproductive axis and enhances desire.
Immune Optimization
See all immune optimization peptides →Thymosin Alpha-1
$80/15mgDual-listed immune peptide. Approved in 35+ countries for immune modulation and T-cell enhancement.
ARA-290
$80/30mgDual-listed innate repair receptor agonist for immune recovery and tissue protection.
KPV (in BPC Combos)
Via comboPotent anti-inflammatory tripeptide available in BPC-157 combination formulations.
Vitamins & Injectables
See all vitamins & injectables peptides →Methylcobalamin (B12)
From $30/10mlInjectable methylcobalamin, the active, ready-to-use form of vitamin B12 for energy and methylation support.
Vitamin B-Complex
$40/30mlInjectable B-complex (B1, B2, B3, B6) for energy metabolism and nervous system support.
Biotin
$65/10mlHigh-dose injectable biotin (vitamin B7) for hair, skin, and nail support and energy metabolism.
Vitamin D3
$55/30mlHigh-dose injectable vitamin D3 (cholecalciferol) for patients correcting documented deficiency.
Why most peptides are injectable
A peptide is a chain of amino acids, and the digestive system is built to break those chains apart. Swallowed, most peptides are dismantled before they reach the bloodstream, which is why injection is the default rather than a preference. Subcutaneous injection puts the full labelled dose into circulation and makes the delivered amount predictable, which matters for any protocol that titrates a dose against a response. The needles involved are insulin syringes, and most patients report the injection itself is a far smaller obstacle than they expected before starting.
- Every injectable ships pre-reconstituted, as a finished solution rather than as a lyophilized powder. There is no bacteriostatic water to buy, no reconstitution arithmetic, and no moment where a non-sterile environment meets an open vial.
- Sterile injectables carry a 90-day beyond-use date under USP <797>; compounded semaglutide and tirzepatide carry up to 120 days.
- Combination vials put multiple peptides in one injection, which costs less than the same peptides bought separately and removes the adherence problem that sinks most multi-peptide protocols. Examples include the Wolverine Stack and the four-peptide Lean Stack.
- Every batch is independently tested by Eagle Analytical Services for sterility and bacterial endotoxin, with the Certificate of Analysis published rather than furnished on request.
- Orders ship FedEx overnight from Optimal Balance Pharmacy in Houston, Texas, in a reusable cooled travel case, at a flat $15 per order regardless of how many vials are in the box.
Pre-reconstituted, and why that matters more than it sounds
Most peptides sold outside a pharmacy arrive as a lyophilized powder that the buyer reconstitutes with bacteriostatic water. That step is where self-directed peptide use most often goes wrong: the wrong diluent volume produces the wrong concentration, so every subsequent dose is wrong, and an open vial in a kitchen is a contamination opportunity. Shipping a finished solution removes the whole category of error. The concentration in the vial is the concentration the prescription specifies, the unit math printed on the product page applies directly to your syringe, and no sterile technique is required of you beyond swabbing the stopper.
Common questions about injectable peptides
- Why are most peptides injectable?
- Because digestion destroys them. Peptides are amino acid chains, and proteases in the stomach and small intestine break amino acid chains apart, so most peptides taken by mouth never reach circulation intact. Subcutaneous injection bypasses the digestive tract entirely and delivers the full labelled dose, which also makes the delivered amount predictable enough to titrate against a response. Oral formulations work only in specific cases: see oral peptides for which ones and why.
- Do your peptides come pre-mixed?
- Yes. Every injectable ships pre-reconstituted as a finished solution, not as a lyophilized powder. You do not buy bacteriostatic water, you do not calculate a diluent volume, and you do not perform a mixing step. This removes the most common source of dosing error in self-directed peptide use, where the wrong diluent volume makes every subsequent dose wrong, and it removes a contamination window.
- How long do injectable peptides last?
- Most sterile injectable peptides carry a 90-day beyond-use date from compounding under USP <797>. Compounded semaglutide and tirzepatide carry up to 120 days. A beyond-use date is not the same as a manufactured drug's expiration date: it is the maximum time a compounded preparation is known to remain stable and safe, and it is shorter because compounded preparations are made in small quantity without a mass-manufacturer's stability program. Every product page publishes its beyond-use date before you order.
- What size needle do peptide injections use?
- Subcutaneous peptide injections use insulin syringes, which carry very fine short needles designed for injection into the fat layer just under the skin rather than into muscle. Doses on our product pages are given in syringe units alongside milligrams for this reason, because units are what you actually read off the barrel. See how to inject peptides for technique and site rotation.
- Can I get multiple peptides in one injection?
- Yes, and it is usually both cheaper and more sustainable than separate vials. Combination vials put several peptides into a single injection: the Wolverine Stack combines BPC-157 and TB-500, and the Lean Stack combines AOD-9604, MOTS-C, tesamorelin and ipamorelin in one 36mg vial at $125. Beyond the cost saving, one injection is a protocol people complete where four injections is one they abandon by week six.
- Are injectable peptides tested?
- Every batch is tested by Eagle Analytical Services, an independent laboratory, for sterility and for bacterial endotoxin. Those are separate assays and a product can pass one and fail the other, which is why endotoxin is worth asking about specifically. Certificates of Analysis are published on the quality page and on individual product pages rather than being provided on request.
- Do injectable peptides need refrigeration?
- Follow the storage instruction printed on your specific prescription label, which is authoritative. Generally, pre-reconstituted peptide solutions are kept refrigerated, protected from light, and never frozen. Orders arrive by FedEx overnight in a reusable cooled travel case, which is designed to keep the shipment in range in transit and is reusable for travel afterward. See how to store peptide solutions.
- What does an injectable peptide order cost?
- Medication is billed by Optimal Balance Pharmacy at wholesale with no clinic markup, and prices are published on every product page without an account. On top of the medication there is a one-time $39 medical visit per order, which covers up to three items, and the pharmacy's $15 flat overnight shipping per order regardless of box contents. There is no membership and no subscription.
Looking for a different format?
Browse peptides by delivery route or by therapeutic category.