b12 injections

  1. Nelson Vergel

    What Type of B-12 Vitamin is Best?

    “Best” depends on what problem you’re solving, how often you want to inject, and what your pharmacy/insurer will actually supply. Below is a head-to-head snapshot followed by practical guidance. FeatureHydroxocobalaminCyanocobalaminMethylcobalamin Regulatory status (U S.)FDA-approved...
  2. W

    Testosterone, B12 and HCG all in 1 shot?

    Just switched from cream to shots for testosterone. I’ve been doing HCG and B12 subq. I’m not a fan of needles so I’m asking if it makes sense to buy a 2 or 3ml syringe and put all 3 in the syringe and inject IM at the same time? Testosterone, B12 and hcg all at once? I’d probably have to...
  3. G

    B12 Injection SubQ

    I've been prescribed b12 injection every 2 weeks. Ask i have are the insulin pins I use for my test cyp. Is there any reason I can do my b12 shot shadow IM/subq? Also, I'm supposed to use a full mL, is that too much to do subq?
  4. E

    B12 Shots - Who uses them? Pro's and Con's?

    I wanted to see how many guys were doing B12 shots. I've done them over the past year and don't really see a difference. What's your experience been?
  5. B

    Where to buy b12 injections without a script

    Was just wondering if anyone knew where to find affordable b12 injections without a script. I'm deficient in b12 and get once monthly injections but my levels are still low. My primary doc told me to start supplementing with otc b12 in addition to the shot but numbers are still low. Was...
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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