mk-677

  1. W

    What Peptides Increase Appetite the Most?

    I have a severe IGF-1 deficiency and I also have lost 90% of my appetite over the last year. I can barely eat food without feeling full or nauseous. I am trying to figure out which GH Peptides will stimulate an increase in my appetite the most. From reading this forum, I am aware that MK-677...
  2. L

    Quality Brands | Ibutamoren MK-677

    Those that have tried MK677 - what are some quality brands that have a good reputation? I tried Supreme Labs in the past, and want to try a different brand (capsules in the US). Peptide Sciences ? Paradigm Peptides ? 99Purity ? Spectre Labs ? Others ? Thanks!
  3. L

    MK-677 and my IGF-1 Levels

    Recently, I started working out and lifting more. I read about MK677 Ibutamoren, and wanted to try it to increase my HGH and IGF-1, so I ordered some from Supreme Labs USA. I hadn't tested my IGF-1 levels in a few years, and I wanted to know my baseline before taking it. Got tested on 4/18/22...
  4. G

    How Much Are You Paying for MK-677 - Ibutamoren?

    Anyone using MK-677? If so, how much is it costing you, and what’s your experience with it? Thanks.
  5. J

    Ibutamoren (MK - 667)

    Hi - Is there any added benefit to buying "Pharmaceutical" grade Ibutamoren from Defy/APS Pharmacy vs. a "reputable" online peptide company?
  6. Nelson Vergel

    Oral GH Booster MK-677 (ibutamoren) Side Effects and Benefits

    J Clin Endocrinol Metab. 1998 Feb;83(2):362-9. Two-month treatment of obese subjects with the oral growth hormone (GH) secretagogue MK-677 increases GH secretion, fat-free mass, and energy expenditure. Svensson J1, Lönn L, Jansson JO, Murphy G, Wyss D, Krupa D, Cerchio K, Polvino W, Gertz B...
TRT Hormone Predictor Widget

TRT Hormone Predictor

Predict estradiol, DHT, and free testosterone levels based on total testosterone

⚠️ Medical Disclaimer

This tool provides predictions based on statistical models and should NOT replace professional medical advice. Always consult with your healthcare provider before making any changes to your TRT protocol.

ℹ️ Input Parameters

Normal range: 300-1000 ng/dL

Predicted Hormone Levels

Enter your total testosterone value to see predictions

Results will appear here after calculation

Understanding Your Hormones

Estradiol (E2)

A form of estrogen produced from testosterone. Important for bone health, mood, and libido. Too high can cause side effects; too low can affect well-being.

DHT

Dihydrotestosterone is a potent androgen derived from testosterone. Affects hair growth, prostate health, and masculinization effects.

Free Testosterone

The biologically active form of testosterone not bound to proteins. Directly available for cellular uptake and biological effects.

Scientific Reference

Lakshman KM, Kaplan B, Travison TG, Basaria S, Knapp PE, Singh AB, LaValley MP, Mazer NA, Bhasin S. The effects of injected testosterone dose and age on the conversion of testosterone to estradiol and dihydrotestosterone in young and older men. J Clin Endocrinol Metab. 2010 Aug;95(8):3955-64.

DOI: 10.1210/jc.2010-0102 | PMID: 20534765 | PMCID: PMC2913038

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