Last Updated January 21, 2024

 January 21, 2024

Inside this Extreme Peptide review, we’ll detail exactly what must be known about this research chemical vendor.

We’ll break down:

  • Is Extreme Peptide legit?
  • Are their products tested for purity?
  • Why do researchers buy peptides from this vendor?

For researcher considering purchasing peptides and other chemicals for investigation, we detail what researchers need to know about Extreme Peptide in this guide.

Plus, we will provide expert tips on how to identify reputable online sources for research chemicals and peptides, as well as our top recommendation.

Extreme Peptides

Product Types: Research Chemicals and Peptides
Quality of Products: 1/5
Pricing: 3/5
Discounts: Regular Sales and Coupons
Alternatives: Limitless Life
Overall Ranking: 2/5

Disclaimer: contains information about products that are intended for laboratory and research use only, unless otherwise explicitly stated. This information, including any referenced scientific or clinical research, is made available for educational purposes only. Likewise, any published information relative to the dosing and administration of reference materials is made available strictly for reference and shall not be construed to encourage the self-administration or any human use of said reference materials. makes every effort to ensure that any information it shares complies with national and international standards for clinical trial information and is committed to the timely disclosure of the design and results of all interventional clinical studies for innovative treatments publicly available or that may be made available. However, research is not considered conclusive. makes no claims that any products referenced can cure, treat or prevent any conditions, including any conditions referenced on its website or in print materials.

Who is Extreme Peptide?

Extreme Peptide is an online vendor of research peptides and chemicals. Headquartered in the state of Florida, the company’s retail catalog includes:

  • Research peptides in lyophilized powder form
  • SARMs in liquid form
  • Assorted other research chemicals
  • 1ml liquid droppers

Founded in 2010 according to its website, Extreme Peptide has few other credentials in evidence. While it boasts core values of high-quality products and client satisfaction, the vendor provides no quality assurance information on any available products. It has a negligible online presence with a swathe of poor reviews. Coverage is limited to domestic shipments, and payment options are limited.

Read on to learn more about Extreme Peptide, including its potential benefits and drawbacks. We will also guide researchers to a more reliable alternative vendor.

Extreme Peptide

Peptides Sold by Extreme Peptide

The Extreme Peptide catalog includes various research chemicals and peptides. These are the top 3 peptide products available on the site:

Extreme Peptide BPC-157

This pentadecapeptide is a synthetic derivative of Body Protection Compound, naturally produced in the GI tract. With proven angiogenic action, BPC-157 works to protect and heal lesions of the gastrointestinal tract, enabling proper organ functioning [1]. Proponents cite the compound’s potential and safety in various therapeutic applications, such as addressing symptoms of cardiovascular and inflammatory conditions, promoting the growth of various tissue types, and accelerating injury recovery [2, 3, 4, 5].

Extreme Peptide TB-500

This synthetic peptide mimics thymosin-beta 4, an organic titetreconpeptide that modulates actin and augments angiogenesis to foster cellular regeneration in animal cells [6]. Clinical research suggests the compound’s therapeutic potential to safely address symptoms of cardiovascular and inflammatory infirmities, foster injury healing, and counter the overt effects of aging [7, 8].

Extreme Peptide Melanotan 2

Melanotan 2 (MT 2) is a synthetic analog of alpha-melanocyte-stimulating hormone (α-MSH) and an agonist of the body’s melanocortin receptors. MT-2 induces a range of responses, from visible darkening of the skin to addressing symptoms of sexual health concerns such as ED and low sex drive. It may also have therapeutic potential in modulating autistic behavior and boosting lean muscle mass. The peptide is considered safe when handled by qualified professionals [9, 10, 11].

The vendor also sells the α-MSH analog PT-141, anti-aging peptides like GHK-Cu and epithalon, as well as the following GH secretagogues:

Payment and Shipping

The Extreme Peptide website does not plainly list all accepted payment methods until check-out. Secured with SSL encryption, the payment options include:

  • Credit card
  • Electronic check
  • Cryptocurrency (Bitcoin, Ether)
  • Money order

While it does not accept many alternative payment methods, the vendor offers 2% discounts with electronic check payments and 8% discounts with cryptocurrency payments. It also has a lucrative rewards program.

Extreme Peptide’s shipping details are as follows:

  • Deliveries are only available within the USA.
  • All shipments are made via USPS with tracking.
  • Orders placed before 1 p.m. EST on business days are shipped same day, while orders after this time are sent out the next business day.
  • Shipments typically arrive within 2-7 business days.
  • Free shipping is offered on orders over $50.

Returns are only issued on damaged items for which the vendor is culpable. Extreme Peptides does not guarantee exact delivery times, and lost shipments that are reported as delivered must be reported within 48 hours of the delivery confirmation to warrant vendor reimbursement.

Extreme Peptide

Benefits of Buying from Extreme Peptide

Here are some of the possible benefits of purchasing from Extreme Peptide:

Product Listings Include Useful Descriptions of the Chemical Properties

The vendor’s website features concise articles that detail the properties and potential clinical applications of the various compounds, including citations from peer-reviewed sources.

Competitive Prices with Regular Markdowns, Coupons, and a Generous Customer Reward Program

With comparatively low prices, to begin with, Extreme Peptides offers further sales on most products. A 25% discount coupon is available with a subscription to the email newsletter, and the customer rewards program issues a point for every dollar spent, redeemable on future purchases. Certain payment options also accrue further discounts of up to 8%.

Trackable Shipping in the USA that is Free for Orders Over $50

The vendor partners with USPS to offer trackable deliveries and provide free shipping on larger orders.

Downsides of Buying from Extreme Peptide

Though we value the possible upsides of purchasing from Extreme Peptide, we have identified several potential drawbacks, including:

No Assurance of Product Quality Claims

This vendor advertises over ten years of experience in providing top-quality research chemicals and peptides, yet it offers no recent certificates of analysis to verify the cited 98% minimum purity levels of its catalog. The company’s blog features wildly outdated third-party test results on some peptides, some dated to 2014.

Though the site guarantees full reimbursement of products used in client testing upon the furnishing of lab results, numerous client reviews cite a lack of follow-through in this regard. Considering the complete absence of discernable quality control measures, safety concerns could arise with products from this source [12].

No Information on Manufacturer Locations

The business states that orders are shipped domestically from within the USA. However, no information is given regarding production locations. This indicates that materials are likely sourced outside of the USA, where manufacturing standards are less reliable to the detriment of product quality.

Poor Online Presence Including a Notable Trend of Poor Reviews

Despite its veteran status with over ten years in business, Extreme Peptide has a negligible digital footprint, with no active social media accounts or write-ups on reputable industry sites. Client reviews in recent years on independent forums are notably negative, with trending claims of unreceived shipments, a total lack of customer service, and low-quality products.

Few Alternative Payment Methods are Available

Extreme Peptide’s acceptance of credit cards is a plus. However, its relative lack of alternative payment options could present an inconvenience for some clients. Plus, the checkout page features incorrect cryptocurrency information, which does not inspire confidence.

Services are Limited to Domestic Orders

International researchers are out of luck, as Extreme Peptide has a limited domestic client base. In comparison to the global shipping offered by leading competitors, this is another point of detraction.

Extreme Peptide Reviews from Researchers

Don’t take our word for it! Let’s take a look at what some customers of Extreme Peptide have to say about the company:

This client had a positive experience with the retailer, stating:

“The website is very simple to navigate and check out is fast and easy…All my questions were answered within 24 hours, and I would recommend it to anyone that asks.” [13]

However, most client reviews are not so positive, with many echoing the concerns of this dissatisfied researcher:

“WARNING! Do not shop here. I recently placed a very large order… I have NOT received my product. I have been billed for these items and all inquiries to where they are have been ignored…It has been two weeks and no tracking number or reply has been issued. I recently reported this transaction as fraud with my bank. They have a phone number listed for contact but when called it will tell you it has been disconnected. Repeat. DO NOT SHOP HERE.” [14]

Is Extreme Peptide Legit?

In consideration of the criteria set forth by chief industry specialists, we cannot vouch for the legitimacy of Extreme Peptide. While the vendor has managed to satisfy some clients in its year of operation, our expert review has identified several glaring issues.

The most notable shortcomings are as follows:

  • No verifiable measures of product quality control on limited catalog
  • Uncertain manufacturing location
  • Limited payment options
  • No international shipping
  • Repeated client complaints of fraudulent business practices

The company’s negligible web presence and error-ridden website do little to mitigate these concerns.

Fortunately, we have a solution for research needs. Read on to discover our top recommendation for the online purchase of research peptides.

Our Top Alternative Peptides Vendor

Limitless Life is the best alternative peptide source.

Why is this USA-based company our top choice? Check out these winning features:

Proven Product Quality

All peptides in the wide Limitless life catalog are of a proven minimum 99% purity level, and the impressive range of forms includes topicals, injectables, capsules, and powders.

Peptide quality is assured through reliable third-party testing adherent to the leading pharmacological standards, while domestic production practices comply with the most stringent GMP manufacturing guidelines [14]. Certificates of lab analysis are readily available to clients for full transparency on the brand’s sleek and educational website.

Smooth Checkout and Low-Cost Shipping Worldwide

In collaboration with trusted shipping providers, Limitless Life offers low-cost, trackable shipping to most countries. The flat shipping and handling rate is waived on domestic orders that exceed $200. All shipments are rapidly dispatched within just 24 hours, and multiple payment options are available with full SSL data protection in place.

Exemplary Service

Limitless Life upholds the highest caliber of client support with a qualified customer service team readily available to answer queries via email. The vendor happily replaces erroneous orders without charge and offers price breaks on large purchases.

Thorough Dedication to 100% Buyer Satisfaction

As the benchmark of excellence in the research peptide arena, Limitless Life steadily follows through on its commitment to total client fulfillment.

Buy research peptides from our top-rated vendor...


Extreme Peptide Discount Code

Discount codes are provided with a subscription to the vendor’s email newsletter.

Are Peptides Legal?

Yes, they are fully legal for handling by strictly qualified researchers.

Are Peptides a Steroid?

No, they are separate chemical classes.

Where Does Extreme Peptide Produce Their Products?

This information is not provided, indicating production sites outside of the USA.

Does Extreme Peptide Test Their Products?

Extreme Peptide does not present evidence of product testing on currently available items.

Bacteriostatic Water for Research Peptides

Qualified researchers require the right tools to carry out their experiments properly. This is particularly true when it comes to preparing and storing extremepeptide and other peptides for injection.

The list of necessary items for these procedures is long, numbering bacteriostatic water, sterile essentials (needles, syringes, and vials), and more.

Acquiring all these items can be a time-consuming and arduous task, putting a dent in the research.

To help researchers avoid this hassle, the squad of experts has thoroughly surveyed the scene to find the single best retailer for research supply needs.

Extreme Peptide Review | Verdict

To sum up this review, Extreme Peptide is not a recommended option for buying research chemicals and peptides online. Despite its years of experience and lofty claims, the company does not meet the necessary standards of verifiable quality assurance and reputable business practices. A swathe of consistently poor client reviews supports this evaluation.

Instead, opt for a trusted source like our top recommendation — that is sure to meet your needs. The USA-based vendor has an unblemished track record of the highest quality products and outstanding customer service. It doesn’t get any better than that.


  1. Gwyer D, Wragg NM, Wilson SL. Gastric pentadecapeptide body protection compound BPC 157 and its role in accelerating musculoskeletal soft tissue healing. Cell Tissue Res. 2019 Aug;377(2):153-159. doi: 10.1007/s00441-019-03016-8. Epub 2019 Mar 27. PMID: 30915550.
  2. Vukojevic J, Milavić M, Perović D, Ilić S, Čilić AZ, Đuran N, Štrbe S, Zoričić Z, Filipčić I, Brečić P, Seiverth S, Sikirić P. Pentadecapeptide BPC 157 and the central nervous system. Neural Regen Res. 2022 Mar;17(3):482-487. doi: 10.4103/1673-5374.320969. PMID: 34380875; PMCID: PMC8504390.
  3. Chang CH, Tsai WC, Hsu YH, Pang JH. Pentadecapeptide BPC 157 enhances the growth hormone receptor expression in tendon fibroblasts. Molecules. 2014 Nov 19;19(11):19066-77. doi: 10.3390/molecules191119066. PMID: 25415472; PMCID: PMC6271067.
  4. Sikiric P, Drmic D, Sever M, Klicek R, Blagaic AB, Tvrdeic A, Kralj T, Kovac KK, Vukojevic J, Siroglavic M, Gojkovic S, Krezic I, Pavlov KH, Rasic D, Mirkovic I, Kokot A, Skrtic A, Seiwerth S. Fistulas Healing. Stable Gastric Pentadecapeptide BPC 157 Therapy. Curr Pharm Des. 2020;26(25):2991-3000. doi: 10.2174/1381612826666200424180139. PMID: 32329684.
  5. Sikiric P, Seiwerth S, Rucman R, Turkovic B, Rokotov DS, Brcic L, Sever M, Klicek R, Radic B, Drmic D, Ilic S, Kolenc D, Aralica G, Safic H, Suran J, Rak D, Dzidic S, Vrcic H, Sebecic B. Toxicity by NSAIDs. Counteraction by stable gastric pentadecapeptide BPC 157. Curr Pharm Des. 2013;19(1):76-83. doi: 10.2174/13816128130111. PMID: 22950504.
  6. National Center for Biotechnology Information. PubChem Compound Summary for CID 16132341, Thymosin beta4. Accessed July 22, 2022.
  7. Goldstein AL, Hannappel E, Sosne G, Kleinman HK. Thymosin β4: a multi-functional regenerative peptide. Basic properties and clinical applications. Expert Opin Biol Ther. 2012 Jan;12(1):37-51. doi: 10.1517/14712598.2012.634793. Epub 2011 Nov 10. PMID: 22074294.
  8. Spurney CF, Cha HJ, Sali A, Pandey GS, Pistilli E, Guerron AD, Gordish-Dressman H, Hoffman EP, Nagaraju K. Evaluation of skeletal and cardiac muscle function after chronic administration of thymosin beta-4 in the dystrophin deficient mouse. PLoS One. 2010 Jan 29;5(1):e8976. doi: 10.1371/journal.pone.0008976. PMID: 20126456; PMCID: PMC2813286.
  9. Dorr RT, Lines R, Levine N, Brooks C, Xiang L, Hruby VJ, Hadley ME. Evaluation of melanotan-II, a superpotent cyclic melanotropic peptide in a pilot phase-I clinical study. Life Sci. 1996;58(20):1777-84. doi: 10.1016/0024-3205(96)00160-9. PMID: 8637402.
  10. Mahiques-Santos L. Melanotan [Melanotan]. Actas Dermosifiliogr. 2012 May;103(4):257-9. Spanish. doi: 10.1016/ Epub 2011 Nov 1. PMID: 22051769.
  11. Minakova E, Lang J, Medel-Matus JS, Gould GG, Reynolds A, Shin D, Mazarati A, Sankar R. Melanotan-II reverses autistic features in a maternal immune activation mouse model of autism. PLoS One. 2019 Jan 10;14(1):e0210389. doi: 10.1371/journal.pone.0210389. PMID: 30629642; PMCID: PMC6328175.
  12. Machek SB, Cardaci TD, Wilburn DT, Willoughby DS. Considerations, possible contraindications, and potential mechanisms for deleterious effect in recreational and athletic use of selective androgen receptor modulators (SARMs) in lieu of anabolic androgenic steroids: A narrative review. Steroids. 2020 Dec;164:108753. doi: 10.1016/j.steroids.2020.108753. Epub 2020 Oct 24. PMID: 33148520.
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Scientifically Fact Checked by:

David Warmflash, M.D.

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