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Research & Science

Research Blog

Peptide science, longevity research, and protocol deep-dives from the Hotspan Labs team.

59 Articles
Human Growth Hormone Peptides Featured
Peptide Research

Human Growth Hormone Peptides: Benefits, Types and Safety

Human growth hormone peptides are among the most discussed compounds in modern peptide research. They are short chains of amino acids designed to prompt the pituitary gland to release more of the body’s own growth hormone (GH). Online, they are often described as anti-aging shortcuts. The research picture is more careful than that. This guide… <a class="more-link" href="https://hotspan.com/human-growth-hormone-peptides/">Continue reading <span class="screen-reader-text">Human Growth Hormone Peptides: Benefits, Types and Safety</span></a>

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October 23, 2026 · 9 min read
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Latest Articles
Peptides for Bodybuilding 9 min
Peptide Research

Peptides for Bodybuilding: A Complete Guide 2026

Regulatory status for peptides changes often, so we review this page regularly. Always confirm the current rules with the FDA and WADA links below. Peptides have become one of the most talked-about topics in bodybuilding. Lifters hear about ipamorelin, CJC-1295, sermorelin and BPC-157 on forums and social media, often with big promises attached. This guide… <a class="more-link" href="https://hotspan.com/peptides-for-bodybuilding-complete-guide/">Continue reading <span class="screen-reader-text">Peptides for Bodybuilding: A Complete Guide 2026</span></a>

October 6, 2026 Read More →
Anti Aging Peptide Research 10 min
Peptide Research

Anti Aging Peptide Research: What Scientists Are Studying About Aging

Aging does not happen all at once. It starts quietly. Inside the body, cells gradually experience changes in energy production, signaling, repair, and stress responses. Some cells stop dividing normally and enter a state known as cellular senescence. Mitochondrial function can change. Tissue remodeling becomes more complex. The systems that once maintained cellular balance begin… <a class="more-link" href="https://hotspan.com/anti-aging-peptide-research-what-scientists-are-studying-about-aging/">Continue reading <span class="screen-reader-text">Anti Aging Peptide Research: What Scientists Are Studying About Aging</span></a>

September 24, 2026 Read More →
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13 min
Peptide Research

Fat Loss Peptides Research: Mechanisms, Studies & Metabolic Pathways

Fat loss looks simple from the outside. The body stores energy as fat. When energy requirements change, stored fat can be mobilized and used. But the biology behind that process is anything but simple. Inside the body, fat storage and energy use are influenced by hormones, receptors, appetite signals, glucose metabolism, lipid metabolism, and communication… <a class="more-link" href="https://hotspan.com/fat-loss-peptides-research/">Continue reading <span class="screen-reader-text">Fat Loss Peptides Research: Mechanisms, Studies & Metabolic Pathways</span></a>

September 9, 2026 Read More →
CJC-1295 Ipamorelin Research 9 min
Peptide Research

CJC-1295 Ipamorelin Research: Mechanism, Studies & Properties

CJC-1295 and Ipamorelin are synthetic peptides that have been studied in relation to growth hormone (GH) secretion and the regulation of the GH/IGF-1 axis. Although both compounds are associated with GH research, they act through different biological pathways. CJC-1295 is a synthetic analogue of growth hormone-releasing hormone (GHRH), while Ipamorelin is a growth hormone secretagogue… <a class="more-link" href="https://hotspan.com/cjc-1295-ipamorelin-research/">Continue reading <span class="screen-reader-text">CJC-1295 Ipamorelin Research: Mechanism, Studies & Properties</span></a>

September 8, 2026 Read More →
AOD-9604 vs Other Metabolic Peptides 4 min
Peptide Research

AOD-9604 vs Other Metabolic Peptides: Research Comparison

AOD-9604 is one of several peptides and peptide-based compounds investigated in metabolic research. However, these compounds do not all work through the same biological pathways. They can differ significantly in molecular structure, receptor targets, mechanism, clinical development, and evidence quality. For that reason, comparing them simply as “fat-loss peptides” can create an inaccurate picture. For… <a class="more-link" href="https://hotspan.com/aod-9604-vs-other-metabolic-peptides/">Continue reading <span class="screen-reader-text">AOD-9604 vs Other Metabolic Peptides: Research Comparison</span></a>

September 7, 2026 Read More →
AOD-9604 vs HGH 3 min
Peptide Research

AOD-9604 vs HGH: Structure, Mechanism & Research

AOD-9604 and human growth hormone (HGH) are related in research history, but they are not the same molecule. Human growth hormone is a 191-amino-acid protein hormone with broad biological activity. AOD-9604 is a much smaller synthetic peptide investigated primarily for lipolytic and metabolic effects. Understanding the structural and biological differences is important when interpreting research… <a class="more-link" href="https://hotspan.com/aod-9604-vs-hgh-structure-mechanism-research/">Continue reading <span class="screen-reader-text">AOD-9604 vs HGH: Structure, Mechanism & Research</span></a>

September 6, 2026 Read More →
AOD-9604 COA 3 min
Peptide Research

AOD-9604 COA: How to Read Purity, HPLC & Mass Spectrometry Results

A Certificate of Analysis (COA) is a batch-specific document that provides analytical information about a research material. For AOD-9604, a COA may include information about chromatographic purity, molecular identity, batch number, testing date, and other quality-control measurements. A COA is useful analytical documentation, but it should not be treated as proof of clinical efficacy, human… <a class="more-link" href="https://hotspan.com/aod-9604-coa/">Continue reading <span class="screen-reader-text">AOD-9604 COA: How to Read Purity, HPLC & Mass Spectrometry Results</span></a>

September 5, 2026 Read More →
AOD-9604 Stability 6 min
Peptide Research

AOD-9604 Stability: Storage, Handling & Degradation Research

AOD-9604 is a synthetic peptide, so its chemical integrity can be affected by environmental conditions and handling practices. Temperature, moisture, solution conditions, light exposure, storage duration, and repeated handling can all influence peptide stability. For research purposes, stability should be evaluated using defined conditions and appropriate analytical testing rather than relying only on visual appearance.… <a class="more-link" href="https://hotspan.com/aod-9604-stability/">Continue reading <span class="screen-reader-text">AOD-9604 Stability: Storage, Handling & Degradation Research</span></a>

September 4, 2026 Read More →
What Does Lyophilized Mean 16 min
Peptide Research

What Does Lyophilized Mean? Peptide Stability Explained

Lyophilized means a substance has undergone freeze-drying a controlled process that removes most of the water from a material while it is frozen, leaving behind a dry, stable solid. Lyophilization is commonly used for peptides and other sensitive biological materials because removing water can reduce certain degradation pathways, improve handling, and support easier transport and… <a class="more-link" href="https://hotspan.com/what-does-lyophilized-mean-peptide-stability-explained/">Continue reading <span class="screen-reader-text">What Does Lyophilized Mean? Peptide Stability Explained</span></a>

September 3, 2026 Read More →
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