Anabolic Steroids
FITSCIENCE / RESEARCH LIBRARY
Anabolic steroid research. Organized.
Understand the compound families, explore individual steroid profiles and compare the research. Start with the family tree, then use the reference guides to investigate a specific topic.
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Reference library
Read the evidence: Use the original references to distinguish measured research outcomes from personal reports. Study population and context matter when comparing compounds.
Browse anabolic steroid articles
Compound profiles, research questions and reference guides. Select an article to explore its sources.
Planning your first steroid cycle? This science-backed beginner's guide covers testosterone-only protocols, dosing, PCT, bloodwork, and how to maximize gains safely....
Best Training Split On Cycle: Steroids and SARMs Workout Programming Guide
Discover the best training program on cycle for steroids and SARMs. Covers volume, frequency, progressive overload, and recovery strategies backed by research....
Estrogen Management For Bodybuilders: The Complete Aromatase Inhibitor Guide
Estrogen management for bodybuilders explained: Anastrozole vs Exemestane vs Letrozole dosing, bloodwork targets, gyno prevention, and common AI mistakes....
Does Boldenone (Equipoise / EQ) aromatize, lower estrogen, or act like an AI?
Boldenone, most people know it by the name Equipoise or EQ, sits right in the middle of one of the biggest misunderstandings in bodybuilding. Ask...
Trenbolone Official Guide Dosage – Half Life – Side Effects Esters
Trenbolone has occupied a unique position in bodybuilding culture for decades. It is one of the most searched anabolic compounds not because it is obscure,...
TRT Benefits for Men: The 2026 Guide to Testosterone Optimization and Health
For decades, Testosterone Replacement Therapy (TRT) was viewed through a narrow, often stigmatized lens. It was seen either as a medical life raft for the...
Testosterone Dosage vs. Lean Mass Gains
What “lean mass” gains really reflect When you see “+X lbs of lean mass,” realize most body-composition methods (DEXA, BIA, hydrostatic) count all non-fat...
Dianabol Dbol Guide Dosage, Half Life & Side Effects
When it comes to anabolic steroids, few names carry as much recognition as Dianabol, also widely known as Dbol. For decades, it has been one...
Primobolan vs. Equipoise – Primo vs EQ
Primobolan vs. Equipoise: Which Delivers More Muscle With Fewer Side Effects? Primobolan (Primo) = DHT-derived, non-aromatizing, famously “clean.” Excels at cutting, recomposition, and long cycles...
Primobolan Primo Guide
Primobolan, or “Primo” as it’s affectionately called, has long been regarded as the thinking man’s anabolic steroid. While it doesn’t create the dramatic transformations of...
Equipoise Guide Boldenone Undecylenate Dosage – Half life – Side Effects
Equipoise (Boldenone Undecylenate): The Complete Bodybuilder’s Guide Everything a lifter wants to know — what it is, how it works, dosing, cycles, stacks, bloodwork, side...
Sustanon Guide to Cycles, Dosage, Benefits & Side Effects
If you’ve been researching testosterone options for bodybuilding or TRT, chances are you’ve come across Sustanon 250. Known as a multi-ester testosterone blend, Sustanon was...
Superdrol Guide – Dosage – Half life Methasterone
Superdrol (methasterone) is one of the most potent oral anabolic steroids ever developed, known for delivering rapid lean muscle gains and dramatic strength increases in...
Adding Growth Hormone to TRT: Real-World Lean Mass Gains, Timelines, and What to Expect at ~2 IU/Day
If you’re already on a dialed-in TRT protocol and wondering whether low-dose growth hormone (GH) will actually add visible size—or just water weight—this guide gives...
Deca Dick Explained: Causes, Recovery, and How to Prevent Erectile Dysfunction on Nandrolone
1. Introduction “Deca Dick” is the term bodybuilders and TRT users use to describe the frustrating—and often cycle-killing—libido crash and erectile dysfunction that can occur...
Receptor Saturation & Anabolic Resistance Explained
The Real Reason Your Stack Isn’t Working: Receptor Saturation & Anabolic Resistance Explained You’ve got your compounds dialed in. You’re training hard. You’re eating like...
This Magic STACK might be the Safest on Hair and Lipids
The Best Hair & Heart-Safe Muscle-Building Stack: Maximum Gains, Minimal Risk For enhanced lifters chasing size without wrecking their hairline or lipid profile, the tradeoff...
Testosterone Esters Explained: Complete Pharmacokinetics, Half-Lives, and Real-World Bodybuilding Use
Testosterone Esters: Complete Pharmacokinetics, Half-Lives, and Real-World Bodybuilding Use Guide 🔬 What Are Testosterone Esters? Testosterone esters are foundational in both clinical testosterone replacement therapy...
Clenbuterol Fat Loss Clen is classified as a sympathomimetic amine
🔥 Clenbuterol for Bodybuilding & Fat Loss: The Ultimate Guide When it comes to cutting cycles and fat-shredding protocols in bodybuilding, few compounds are as...
Liver Protection & Recovery Protocol for SARMs, Peptides, and Anabolic Steroids
Liver Protection & Recovery Protocol for SARMs, Peptides, and Anabolic Steroids The Ultimate Guide to Healing and Defending Your Liver While Using Enhanced Compounds Whether...
Anavar (Oxandrolone): A Comprehensive Reference Guide
Anavar (Oxandrolone): A Complete Guide to Performance, Safety, and Results If you’ve spent any time on bodybuilding forums, you’ve heard the hype: Anavar is often...
Anabolic Steroid Family Tree: Testosterone Derivatives – DHT Dihydrotestosterone Derivatives – Nandrolone Derivatives 19-Nor
🧬 Anabolic Steroid Family Tree: A Framework for Muscle Growth, Performance, and Side Effects If you’ve ever looked at a steroid cycle and thought,“Why does...
Testosterone: TRT, Dosages, Esters, Muscle Growth & Safety
Testosterone: TRT, Dosages, Esters, Muscle Growth & Safety Introduction: Testosterone is the primary male sex hormone and a powerful anabolic compound that plays a pivotal...
Preventing Hair Loss from Steroids & SARMs: Top 10 Ways Bodybuilders Can Prevent It and Regrow Hair
Hair Loss from Steroids & SARMs: Top 10 Ways Bodybuilders Can Prevent It and Regrow Hair Hair loss from steroids and even certain SARMs is...
Enclomiphene vs Nolvadex vs Clomid: PCT Showdown
Enclomiphene vs Nolvadex vs Clomid: PCT Showdown for Enhanced Lifters (2025 Guide) Whether you’re running SARMs, peptides, or full-blown AAS, post-cycle therapy (PCT) isn’t optional—it’s...
Side Effects Matrix: SARMs, Peptides, and Steroids Compared
Side Effects Matrix: SARMs, Peptides, and Steroids Compared Whether you’re running SARMs, peptides, or full-blown anabolic steroids, every compound carries a side effect profile —...
Bloodwork Checklist for Enhanced Lifters: What to Test, When, and Why
🧪 Bloodwork Checklist for Enhanced Lifters: What to Test, When, and Why 💭 Why Bloodwork Should Be Non-Negotiable for Enhanced Athletes If you’re using SARMs,...
Ultimate Guide to SARMs vs. Steroids: Which Is Better for Size and Strength?
Ultimate Guide to SARMs vs. Steroids: Which Is Better for Size and Strength? 🧬 What Are SARMs and Anabolic Steroids? SARMs: Selective Androgen Receptor Modulators...
Common Steroid Anabolic:Androgenic Ratios
The anabolic:androgenic ratio of a steroid is a comparison of its anabolic (tissue-building) effects to its androgenic (masculinizing) effects. Anabolic effects refer to the promotion...
