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Leading advancements in peptide research and development are paving the way for innovative biotechnology solutions, particularly in the realm of weight loss peptides.

For all your premium grade research peptides

For all your premium grade research peptidesFor all your premium grade research peptidesFor all your premium grade research peptides

Leading advancements in peptide research and development are paving the way for innovative biotechnology solutions, particularly in the realm of weight loss peptides.

For all your premium grade research peptides

For all your premium grade research peptidesFor all your premium grade research peptidesFor all your premium grade research peptides

About Peptide King

Welcome to Peptide king– Your Trusted Source for Premium Research-Grade Peptides

We specialize in providing the highest-purity peptides  available on the market. Every batch is manufactured in certified laboratories, independently verified for potency and purity  because your research deserves nothing less than excellence.

What truly sets us apart is our obsession with customer success. Our team of peptide experts is here 7 days a week to guide you: from selecting the perfect compound for your goals, to reconstitution advice, storage tips, and research-backed protocols. No question is too small, and no order leaves our facility without the knowledge you need to get real results.

Purity. Expertise. Support. That’s the Peptide king promise.

Join thousands of researchers, clinics, and performance enthusiasts who trust us for consistent, lab-verified quality and world-class service – every single time.

research peptides

What Are Peptides? 

Peptides are short chains of amino acids – the building blocks of proteins – typically containing 2 to 50 amino acids. Unlike full-length proteins,s are small enough to be rapidly absorbed and utilized by the body, which makes them powerful signaling molecules that can influence almost every physiological process.

Think of peptides as precise biological “text messages.” They travel through the bloodstream and tell your cells exactly what to do: build muscle, burn fat, repair tissue, boost collagen, regulate hormones, strengthen immunity, improve sleep, speed recovery, and even slow visible signs of aging.

Because of their targeted action and excellent safety profile when used correctly, therapeutic peptides have exploded in popularity among athletes, biohackers, physicians, and anyone interested in optimized health and performance.

Why Peptides Are Different (and Often Superior) to Traditional Supplements

  • Highly specific: Each peptide has a unique sequence that triggers a very specific response (e.g., BPC-157 promotes tendon and gut healing, while GHK-Cu stimulates collagen and wound repair).
  • Excellent bioavailability: Many peptides survive digestion or can be administered via simple subcutaneous injection or nasal spray.
  • Minimal side effects: Because they mimic naturally occurring molecules in the body, high-quality peptides tend to be very well tolerated.
  • Fast-acting: Users frequently report noticeable effects within days or weeks, not months.

Most Popular Categories of Therapeutic Peptides

  1. Growth Hormone Releasing Peptides (GHRPs) & Secretagogues
    Examples: Ipamorelin, CJC-1295, Tesamorelin, Sermorelin
    Benefits: Increased growth hormone and IGF-1 → better muscle growth, fat loss, recovery, skin quality, and energy.
  2. Healing & Recovery Peptides
    Examples: BPC-157, TB-500 (Thymosin Beta-4)
    Benefits: Accelerated healing of tendons, ligaments, muscles, gut lining, and even nerve tissue.
  3. Anti-Aging & Skin Rejuvenation Peptides
    Examples: GHK-Cu, Epitalon, Matrixyl (topical), Argireline
    Benefits: Collagen synthesis, reduced wrinkles, improved skin elasticity, hair regrowth, DNA repair.
  4. Cognitive & Neuroprotective Peptides
    Examples: Semax, Selank, Dihexa, Cerebrolysin
    Benefits: Enhanced focus, memory, mood stabilization, neuroregeneration.
  5. Immune & Antimicrobial Peptides
    Examples: LL-37, Thymosin Alpha-1
    Benefits: Stronger immune defense, faster recovery from infections, gut health.
  6. Weight Loss & Metabolic Peptides
    Examples: Semaglutide (Wegovy/Ozempic), Tirzepatide (Mounjaro), AOD-9604 ,Retatrutide
    Benefits: Dramatic appetite suppression, fat loss, improved insulin sensitivity.

Are Peptides Safe and Legal?

When sourced from reputable, regulated compounding pharmacies or manufacturers and used under medical supervision, research peptides have an outstanding safety record. Many peptides used today are identical or analogous to compounds already naturally present in the human body.

Legality varies by country and specific peptide. In the UK, most peptides fall into a research-only category for personal use, while some (like semaglutide and tirzepatide) are FDA-approved prescription medications for specific indications.


Ready to Explore the Power of Peptides?

Whether your goal is faster recovery, youthful skin, fat loss, cognitive enhancement, or peak athletic performance, there’s likely a peptide protocol that can help you get there safer and faster than traditional approaches

Price List

First Category

Weight loss

Tirzepatide 20MG vial

£80

Tirzepatide is a dual GIP and GLP-1 receptor agonist studied within peptide research for its robust impact on glucose control, insulin sensitivity, and body weight, making it a promising candidate in the field of biotechnology solutions for weight loss peptides in metabolic and diabetes research.

Tirzepatide 50mg vial

£140

Tirzepatide is a Dual GIP and GLP-1 receptor agonist studied within the realm of peptide research for its robust impact on glucose control, insulin sensitivity, and weight loss peptides, making it a significant focus in biotechnology solutions related to metabolic and diabetes research.

Retatrutide 30MG vial

£120

Retatrutide is a triple agonist peptide that targets GLP-1, GIP, and glucagon receptors, making it a significant focus in peptide research within the field of biotechnology solutions. It has been studied for its powerful potential in weight loss peptides, offering promising results in weight reduction and metabolic improvement.

Tesamoreline 20MG vial

£90

Tesamorelin is a synthetic peptide medication primarily prescribed to reduce excess abdominal fat (lipodystrophy) in adults. This peptide, which is FDA approved for human use, is a significant focus in peptide research and biotechnology solutions, as studies show that it effectively melts visceral fat, making it a valuable option among weight loss peptides.

Cagrilintide 5MG vial

£40

Cagrilintide is a research-grade peptide available in the UK for scientific research purposes. This investigational amylin analogue is part of peptide research within the biotechnology solutions sector, as it is studied for its potential in weight management by inducing weight loss and reducing food intake.

5-Amino-1mq 50MG vial

£60

5-amino-1MQ is a small molecule compound (not a peptide) that serves as a potent inhibitor of the enzyme nicotinamide N-methyltransferase (NNMT). Current biotechnology solutions are exploring this mechanism for its potential effects on metabolism, fat loss, energy levels, and muscle preservation, which is particularly relevant in the field of peptide research and the development of weight loss peptides.


Second category

Strength ,recovery and stamina

SLU-PP-332 5MP vial

£45

SLU-PP-332 is a pan-estrogen receptor-related receptor (ERR) agonist with high affinity for ERRα, ERRβ, and ERRγ, exhibiting EC50 values of 98, 230, and 430 nM, respectively. This compound, which is of interest in biotechnology solutions, enhances mitochondrial function and cellular respiration, increases type IIa oxidized skeletal muscle fibers, and improves exercise tolerance in skeletal muscle cell lines. Additionally, SLU-PP-332 has potential applications in peptide research related to metabolic diseases, the improvement of muscle function, and the amelioration of metabolic disorders, making it relevant in the context of weight loss peptides.

MOTS-C 40 MG vial

£60

MOTS-c is a mitochondria-encoded research peptide utilized in biotechnology solutions for controlled in-vitro studies of cellular metabolism, stress-response signalling, and mitochondrial bioenergetics under non-clinical conditions. This peptide research is crucial for understanding various biological processes, including the mechanisms related to weight loss peptides.

SS-31 50 mg vial

£130

SS-31, also known as elamipretide, is a synthetic tetrapeptide with the sequence D-Arg-Dmt-Lys-Phe-NH2. Unlike many other peptides that work on surface receptors, SS-31 was engineered to specifically target the mitochondria — the energy-producing organelles inside cells. This innovative approach is part of the latest advancements in peptide research within biotechnology solutions. Notably, this peptide is FDA approved for human use and is being explored for its potential in weight loss peptides.

Glow70 70 MG vial

£70

Glow Blend is a high-quality research peptide formulation that combines three widely studied compounds: GHK-Cu, BPC-157, and TB-500. This innovative blend is designed for investigative use in skin regeneration, cellular repair, and tissue recovery, making it a valuable asset in peptide research. Its synergistic properties support cutting-edge biotechnology solutions focused on anti-aging and healing applications, including the exploration of weight loss peptides. 


10MG BPC157


10MG TB500


50MG GHK-Cu

Oxytocin 5MG vial

£30

Oxytocin (OT), often referred to as the love molecule, is a 9-amino acid peptide that is synthesized primarily in the hypothalamic neurons, specifically the magnocellular oxytocin neurons found in the supraoptic and paraventricular nuclei. It is secreted by the posterior pituitary gland and can also be produced in other tissues such as the ovaries and testes. The circulating levels of OT are crucial during parturition and lactation. In the context of peptide research, understanding oxytocin’s role in the pregnant uterus and its interaction with the oxytocin receptor is vital, particularly as biotechnology solutions explore its potential applications, including the influence of weight loss peptides on metabolic processes.

Semax 10MG vial

£40

NA-Semax Amidate is a synthetic peptide that mirrors adrenocorticotropic hormone (ACTH). Researchers study it to understand its role in cognitive science, neuroprotection, and central nervous system research, making significant strides in biotechnology solutions. Furthermore, as a peptide analog, NA-Semax Amidate provides a stable and reliable structure for advanced lab studies, which contribute to the growing field of peptide research and the development of weight loss peptides.

Ipamoreline 10MG vial

£30

Ipamorelin significantly increases plasma growth hormone (GH) levels in both animals and humans, making it a valuable focus in peptide research. In addition, ipamorelin stimulates body weight gain in animals, showcasing its potential in developing effective biotechnology solutions for weight loss peptides. Works great with tesamoreline.

Stock items change hourly please email for latest stock updates

High-purity peptides for scientific research use only

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