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Can’t really comment atm, but I will be switching from brand name Westward enanthate to Pfizer cypionate in the next couple weeks. Been on the same protocol for a while now, and been using enanthate for a long time. Gonna switch to Pfizer cyp and keep my whole protocol the same. Just want to see if I feel better or worse on the Pfizer cyp. Plus I live in Mass, and I can get a full 10ml bottle of Pfizer cyp, vs having to continually order 5ml vials of westward enanthate. So I can try to report back after a month or so on the cyp if I remember


But even tho technical there shouldn’t be much difference in enanthate and cyp on paper, they can definitely effect people quite differently, from what I’ve seen anecdotally. Some won’t notice any difference, but I’ve seen some that definitely do. All individual. I’ve had this anecdote saved for years now, found it very interesting. Here it is. Sorry if it’s a little confusing, but it’s someone asking the question of whether he feels a difference between test E and test cyp. The guy answers, and then he also gave an anecdote of one of his buddies where he talks about feeling best on Pfizer cyp


Question someone asked the guy:

-What big pharma brands of test E and Test C have you used? Any difference when using test E vs test C?


His response:

-I used Bayer for the E and Pfizer for the C. The Bayer felt a little stronger than the Pfizer but again this is totally anecdotal. Both have more of a feeling of energy than the empower.

-I have a prescription but only got the compounded from empower so far. I got the Bayer before I had a prescription but I'm glad I don't have to get it illegally anymore.


Talks about his buddy:

-My friend who gave me the Pfizer is a pro athlete and his parents are both chemists for pharmaceutical companies and he told me they said to never ever take a generic of any drug for any reason, they said the smallest change in the excipients, or the way they synthesize the raws, can drastically effect side effects and efficacy. My friend also told me from his anecdotal experience that he felt great on Pfizer and always had issues on everything else he tried.

-I checked with defy and they said they have Pfizer, sun pharma, and another I haven't heard of. So I think I'll do the Pfizer again.


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

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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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