Peak Lab Peptides Coupon Code: PROFPEPTIDE — Save 10%
Use discount code PROFPEPTIDE at Peak Lab Peptides to save 10% on your first order. Prof. Peptide verifies this code directly with the vendor and updates it when it changes.
Key facts
- Price comparison
- 32 of 59 comparable products cost less than the median for the same product and size across every vendor PP tracks — before the code
- Catalog
- 125 products at the 2026-09-29 pull · 59 in Prof. Peptide’s price comparison, 58 of those in stock (a further 3 priced here with too few other vendors to compare against) · Lyophilized peptide in vials, with nasal sprays and research liquids alongside; 121 products listed, of which 26 are multi-vial kits
- Third-party testing
- Bioviridian Inc.
- Certificates of analysis
- Public certificate library on the vendor's own site, open without an account, publishing 48 reports from one named laboratory with product, purity, method, lot and pass/fail for each
- Prof. Peptide’s discount
- 10% off with code PROFPEPTIDE — first order only
Compare Peak Lab Peptides’s prices: IGF-1 LR3, Kisspeptin-10, Oxytocin, Thymalin, Ipamorelin, PEG-MGF, MOTS-C, Cibinetide
Peak Lab Peptides (peaklabpeptides.com) is a US supplier listing 121 products, of which 26 are multi-vial kits. Its own pages give an address in Watertown, South Dakota, and the company is registered as Peak Lab Peptides LLC. Alongside lyophilized vials it sells a line of nasal sprays and research liquids. Among the compounds carried:
- Metabolic & GLP-1
- MOTS-c, AOD-9604, 5-Amino-1MQ, Adipotide
- Growth Hormone
- CJC-1295 with and without DAC, Ipamorelin, Sermorelin, Tesamorelin, GHRP-2, GHRP-6, IGF-1 LR3
- Skin Health & Anti-Aging
- GHK-Cu, AHK-Cu, Melanotan II, Melanotan I, Glutathione
- Gut Health & Immunity
- KPV, LL-37, Thymosin Alpha-1
- Sleep & Recovery
- DSIP
- Longevity
- NAD+, Epithalon, Follistatin
- Sexual Health
- PT-141, Kisspeptin-10
The certificates name Peak Lab Peptides as the vendor, and name the laboratory that issued them. Testing is by Bioviridian, named on every row of the vendor’s own certificate index and signed by its principal chemist. That index states 48 of 48 reports, each listing the product, purity, method, lot number and a pass result. One was opened and read in full: BPC 157 10mg, lot BC-202607-001, received 16 July 2026 and issued 23 July 2026, identity confirmed by LC-MS/MS, content 10.65 mg by HPLC quantitation and overall purity 99.7% by RP-HPLC at 214 nm. The same certificate was then fetched from the laboratory’s own domain and matches field for field. Bioviridian serves certificates by the verification code printed on them, so a reader can request the same document from the laboratory and compare it; codes that do not exist return nothing, which is what makes a match meaningful. The vendor republishes its copies as images, so the two files are not byte-for-byte identical. Neither the certificates nor the laboratory state any accreditation, so none is claimed here, and the laboratory’s own domain dates from late 2025 — it is a young lab. Coverage is partial: 48 certificates against a 121-product catalog. All products are sold for laboratory and research use only.
Part of the GLP range is listed under codes, and Prof. Peptide does not decode it. The storefront lists GLP-1 S, GLP-1 T, GLP-1 C, GLP-1 C + GLP-1 S and GLP-3, while the certificate library publishes Semaglutide, Tirzepatide, Cagrilintide and Retatrutide under their plain names. The letters line up, but nothing published connects a certificate to a coded product and those product pages do not resolve, so no price is carried for them here.
One thing worth knowing before comparing prices. Peak Lab sells a paid membership — $149 for three months on its own page — which it advertises as 20% off every order site-wide. That is a subscription rather than a free code, and the prices shown below are the ordinary storefront prices a buyer pays without it. The 10% code applies to a first order. Peak Lab’s own affiliate terms state, five times over, that a referral receives 10% off their first order through the link or code — so the figures in the grid below are what a first order costs, not a standing rate. Its shipping policy states free standard shipping at $200 and free 2-Day Air at $300.
Struck-through prices are Peak Lab Peptides’ list price; the bold figure is your price once you apply code PROFPEPTIDE at checkout. Prices current as of September 29, 2026.
Prof. Peptide checked Trustpilot and Finnrick on 30 September 2026.
Frequently Asked Questions
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Affiliate disclosure: Prof. Peptide is independently operated and may earn affiliate commissions when you use our discount codes or buy through our links, at no additional cost to you. Affiliate relationships never determine vendor inclusion, ranking, verification, or our editorial conclusions.