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Someone wrote asking what blood tests they should get while using a long list of hormones, peptides, and drugs. They named testosterone injections, HCG, an aromatase inhibitor (Arimidex), human growth hormone, several research peptides (Semax, Selank, GHK-Cu, IGF-1, MOTS-c), a ghrelin/peptide called Reta, and products named Wolverine/Seperate. They want to know what to monitor beyond “T” (testosterone). That’s the news: a person stacking many active compounds and looking for practical guidance on safety labs. Briefly about what these substances are. Testosterone is the male sex hormone often given by injection to raise levels. HCG (human chorionic gonadotropin) mimics a pregnancy hormone and can keep the testes working while someone takes testosterone. Arimidex (anastrozole) blocks conversion of testosterone to estrogen. Human growth hormone (HGH) is a hormone that affects growth, metabolism, and blood sugar. Semax and Selank are short “nootropic” peptides studied in Russia for mood and focus. GHK-Cu is a copper-binding peptide marketed for skin and repair. IGF-1 (insulin-like growth factor 1) and MOTS-c are metabolic/mitochondrial peptides that affect growth and energy, often experimental. Reta and products called Wolverine/Seperate sound like proprietary peptide blends or research peptides; their ingredients and safety are often unclear. In short: many of these change hormones, metabolism, or immune signals. What the research shows varies a lot. Testosterone, HCG, Arimidex, and HGH have substantial clinical research and known labs to follow. They can raise hemoglobin, change cholesterol, alter liver and kidney function, affect blood sugar, and change hormone levels. IGF-1 and MOTS-c have preclinical and limited human data; effects and safe doses aren’t well-defined. Semax, Selank, and GHK-Cu have small studies mostly on cognition, mood, or wound healing; they’re not well-regulated. For many of these combinations there are no large controlled studies, so the real risks and interactions are uncertain. The snippet is a single person’s stack, so any advice must be cautious and individualized. Why it matters: when you take hormones and bioactive peptides, simple blood tests can catch problems early — things like high red blood cell counts (which raise clot risk), bad cholesterol shifts, liver or kidney stress, suppressed natural hormone production, or dangerously low or high estrogen. If you’re taking testosterone or HGH, clinicians typically monitor testosterone, estradiol (a form of estrogen), complete blood count (CBC), liver enzymes, kidney function (creatinine), fasting glucose and hemoglobin A1c (blood sugar over time), lipid panel (cholesterol), IGF-1 (for HGH activity), and PSA in older men (prostate marker). If you use aromatase inhibitors, you should watch bone health and joint symptoms because lowering estrogen too much has risks. Caveats and risks: many of these peptides are sold as research chemicals and aren’t regulated; dosing, purity, and labeling can be unreliable. Combining multiple hormones increases the chance of side effects and complex interactions. Don’t assume over-the-counter or “peptide” products are safe. Some people shouldn’t use these at all — for example, anyone with a history of cancer, heart disease, blood clots, or poorly controlled diabetes needs special caution. Work with a licensed clinician who understands hormone therapy and can order and interpret labs. Also, abrupt stopping of some agents (like HCG or testosterone) can lead to withdrawal or hormonal imbalance, so supervision matters. Bottom line: get a comprehensive baseline and regular follow-up labs — CBC, metabolic panel (liver/kidney), fasting glucose/A1c, lipid panel, testosterone and estradiol, LH/FSH if preserving fertility is a concern, IGF-1 if on HGH or IGF-1, and PSA if age-appropriate — and talk to a knowledgeable clinician about drug quality and risks before continuing.
Source: r/Peptides