Peptide therapy is a cutting-edge approach that utilizes peptides to enhance health, manage various conditions, and optimize physical performance. To grasp how this therapy works, it’s essential to understand peptides themselves
Peptide therapy is a rapidly emerging field in the realm of healthcare and wellness, offering a promising approach to address a wide range of health concerns and optimize overall well-being.
Peptide Specialization
At Intrinsic Peptides, we offer a wide selection of research use only, high-quality peptides backed by rigorous purity standards and third-party testing. Our products are tested by independent labs that follow cGMP and ICH guidelines, ensuring sterility, endotoxin control, potency, and purity.
Our Featured Products
Frequently Asked Questions
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Why should I buy peptides from Intrinsic Peptides?At Intrinsic Peptides, quality and transparency is at the forefront of our processes, along with science and longevity. Why use Intrinsic Peptides as a peptide supplier: Competitive pricing Same-day shipping available in all 50 states Third party tested and confirmed with a Certificate of Analysis (COA) Meets U.S. Pharmacopeia (USP) standards Synthesized and handled by GMP compliant facilities Rigorous quality and purity requirements >98% confirmed with RP-HPLC and MS testing Independent providers available to support with proper instruction regarding peptide protocols, reconstituting (mixing), handling and storage
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Are peptides safe?Because peptide injections are very similar to peptides that naturally exist in the body and in healthy foods, peptides are typically safe to inject and have very few side effects. The FDA has categorized peptides as GRAS (considered to be generally recognized as safe) ingredients. Peptides offered by intrinsic Peptides adhere to rigorous quality and purity standards, with a purity level greater than 98% confirmed through RP-HPLC and mass spectrometry (MS) testing. Our products meet U.S. Pharmacopeia (USP) standards and are third-party tested, with a Certificate of Analysis (COA) provided to confirm their quality. All peptides are synthesized and handled in GMP-compliant facilities, ensuring the highest manufacturing standards. Additionally, independent providers are available to support you with proper instruction regarding peptide protocols, reconstituting (mixing), storage, and handling ensuring a safe and effective experience. Only about 33 non-insulin peptide injections are approved by the FDA, because more research needs to be done on long-term safety. There are over 170 peptides in clinical trials for efficacy and safety. Several peptides were added to Category 2 under Section 503A of the Food, Drug, and Cosmetic Act — implies that there may be more regulations to come around use cases for peptides in the future. This does not mean that these peptides are banned, illegal, or unsafe.
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Which peptides should I consider?The process of peptide therapy is a dynamic and individualized journey. We have made it simple to search by category, and easily apply condition or symptom filters when browsing all peptides. If you don't know where to start, we recommend scheduling a consult to receive guidance. You will speak with a specialist in peptide therapy, that can walk you through proper handling and protocols.
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Do peptides really work?The efficacy of peptide therapy for various medical conditions is still being studied, however, there is evidence and research that suggests peptide therapy may be an effective treatment for many conditions. The first half of the 20th century witnessed the discovery of several life-saving bioactive peptides, such as insulin. The discovery and development of insulin has been considered as one of the monumental scientific achievements in drug discovery. As the building blocks of proteins, peptides play an essential part in many biological functions - including aging. Combat age-related decline, support muscle growth and performance, boost your skin health, metabolism, and more with peptide treatments delivered directly to you. It is important to note that peptide therapy is not a cure for any medical condition and should be used in conjunction with other medical treatments and lifestyle changes.
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Why are peptides growing in popularity?The use of peptides as drugs began as early as the 1950s with the discovery of hormones and neurotransmitters and treatment with peptide-based drugs for hormonal therapy. Peptide injections are the most popular, because they provide the highest bioavailability in the body. Injections are also easy to administer, ensuring the peptides circulate directly into the bloodstream. Other dosage methods include nasal, transdermal, or oral. Here are some of the potential benefits of peptide therapy: Anti-aging: Peptides may help in reducing fine lines and wrinkles, and immunology benefits such as mitochondrial repair. Weight loss: Certain peptides may boost the metabolism and improve caloric burn to help reduce cravings and promote weight loss. Muscle growth: Certain peptides may stimulate muscle growth, increase endurance, and reduce muscle fatigue. Improved athletic performance: Some peptides may enhance athletic performance by increasing oxygen delivery, boosting energy levels, and reducing recovery time. Improved sleep: Peptides may help regulate the body’s circadian rhythm and improve sleep quality. Improved sex drive: Certain peptides may work directly through the nervous system to increase arousal, desire, satisfaction, and help to improve overall sexual function in men and women. Disclaimer: Peptides are intended for research purposes only. They are not approved for human consumption, medical, or therapeutic use. Effects may vary based on individual research models and peptide characteristics. Always consult a qualified professional before initiating any study involving peptides.
Quality Standards
Are your peptides 3rd party tested? Intrinsic Peptides is committed to quality, transparency, and compliance in every stage of our sourcing and testing process. While peptides are not governed by USP monograph standards for pharmaceuticals, our quality control procedures follow industry best practices and incorporate elements of USP and where applicable. Our Quality Assurance Process Includes: •Independent Third-Party Testing – Every batch is tested for both purity and potency, with a Certificate of Analysis (COA) issued for full verification. •Batch-Level Traceability – Unique batch numbers are assigned and recorded on both the COA and vial labels to ensure complete traceability. •Multiple Sample Verification – Several vials from each batch are tested to confirm consistency and reliability. •cGMP-Compliant Practices – All testing is performed by an independent laboratory, separate from manufacturing, operating under Current Good Manufacturing Practices for strict quality assurance.
Which labs do you use for testing? At Intrinsic Peptides, quality isn’t just a standard — it’s our promise. All products are tested by independent laboratories operating under cGMP (Current Good Manufacturing Practices) and ICH (International Council for Harmonisation) guidelines. While we work with multiple labs to meet specific testing needs, Chromate serves as our primary testing partner. Our Testing Process Includes: Potency Each batch is tested to verify that it contains the precise amount of active ingredient — within 10% of the intended dose — ensuring you receive exactly what’s expected, every time. Sterility We confirm all products are free from bacteria or harmful contaminants, following the same strict safety standards applied in pharmacies nationwide (USP ). Endotoxins In conjunction with sterility testing, this process ensures our products are free from bacterial toxins. All peptides are tested for endotoxins in compliance with USP . pH Balance We verify that our bacteriostatic solution contains 0.9% benzyl alcohol and maintains an optimal, sterile formulation — reducing the risk of irritation or tissue damage.
Is Intrinsic Peptides a 503A or 503B pharmacy? Intrinsic Peptides is not a 503A or 503B pharmacy. We are a research and wellness brand that partners with licensed providers and laboratories to deliver high-quality peptides and related compounds. Our products are not manufactured by or dispensed through traditional compounding pharmacies. Instead, they are intended for clinical research, physician-guided use, or wellness optimization—depending on the context and applicable regulations. Key Differences from Compounding Pharmacies: •Manufacturing & Testing – Unlike compounding pharmacies, which prepare patient-specific medications under 503A guidelines or batch-produce under 503B regulations, our products are manufactured in commercial-grade facilities that follow rigorous quality control protocols. Every batch undergoes HPLC, mass spectrometry, sterility, and endotoxin testing to ensure safety, purity, and consistency. •Intended Use & Labeling – Compounded medications are dispensed directly to patients under a prescription. Our peptides are not prescription medications; they are typically labeled for research or investigational purposes, depending on product category and regulatory requirements. •Regulatory Oversight – Compounding pharmacies are regulated by the FDA and state pharmacy boards, requiring adherence to USP and standards for sterile and non-sterile preparations. Our products are not compounded medications; instead, certain products fall under IRB-reviewed investigational frameworks, ensuring ethical oversight in approved research applications. •Institutional Review Board (IRB) Involvement – Selected investigational products may be used in IRB-approved research settings, enabling structured evaluation under formal clinical protocols. This differs from compounding pharmacies, which operate within patient-specific or office-use dispensing guidelines. We prioritize transparency and product integrity. All peptides undergo independent third-party testing for purity and sterility, with Certificates of Analysis available for verification. For any products requiring prescription fulfillment through a 503A or 503B facility, we collaborate with licensed practitioners and pharmacy partners as needed.
What is IRB-approved research? Intrinsic Peptides are designed for use in IRB-approved research settings, enabling structured evaluation under established clinical protocols. This means you’re working with products that not only meet exceptional quality standards but also contribute to the development of emerging data and valuable clinical insights. Each product is manufactured to rigorous quality and purity specifications suitable for investigational research. While we do not collect data from every clinic, Intrinsic Peptides are utilized in both IRB-approved studies and investigator-initiated research—providing clinics and patients with confidence in the consistency, reliability, and integrity of every batch.