Lower numbers = closer to natural. Higher numbers = more enhanced.
Why this rating?
Halotestin is one of the strongest androgens available, used exclusively for strength and aggression enhancement without weight gain. The extreme CNS stimulation and strength increases it provides (used in 2-4 week bursts by powerlifters pre-competition) represent performance beyond natural capacity. While it does not build mass, the strength and aggression effects are dramatic enough to warrant a high rating. Rated 9 rather than 10 because it lacks the mass-building effects of top-tier compounds.
Overview
An extreme androgenic oral steroid used for raw strength and aggression without weight gain. One of the strongest androgens available, used almost exclusively by powerlifters and combat athletes.
Important Warnings
- •One of the most hepatotoxic oral steroids
- •Extreme aggression can be dangerous in everyday situations
- •No mass building properties - strength only
- •Reserved for advanced users with specific competition goals
- •Never combine with another 17-alpha-alkylated oral. Hepatotoxicity compounds dangerously
- •Finasteride does NOT meaningfully tame its harsh androgenic hair/skin effects
Purpose & Use Cases
Strength Peaking
Used pre-competition by powerlifters for maximum strength without weight gain.
Aggression Enhancement
Dramatically increases aggression and psychological drive, useful for combat sports or meets.
Benefits
- Extreme strength increases
- Dramatically enhanced aggression and drive
- No water retention or weight gain
- Rapid effects for competition prep
Good to Know
Strength and aggression, not mass: why it rates 9 not 10
Halotestin adds almost no size. Its entire purpose is a raw strength and aggression spike for a powerlifting meet or fight, used in 2-4 week bursts. It sits just below top-tier mass compounds because it does not build a physique. It changes what you can lift on the day.
Among the most hepatotoxic orals in existence
The 17-alpha-alkylation plus its potency make Halo brutal on the liver. Cholestatic jaundice and peliosis hepatis are documented. Cap runs at 2-4 weeks, use TUDCA, avoid alcohol, and never stack it with another 17aa oral.
Does not aromatize, no AI, but no estrogen buffer either
It is reported to be non-aromatizable, steric hindrance from the 11-beta hydroxyl group prevents conversion, so there is no estrogenic bloat and no AI is needed. It is run alongside an aromatizing base so you are not left with crashed estrogen.
Extremely androgenic: harsh on hair and skin, finasteride barely helps
Its raw androgenic potency drives severe acne and hair loss in predisposed users, and finasteride offers little practical protection. The aggression it produces can be genuinely dangerous outside a controlled competitive setting.
Dosage Guidelines
| Experience Level | Dosage Range |
|---|---|
| Beginner | 10 – 20 mg/day |
| Intermediate | 20 – 30 mg/day |
| Advanced | 30 – 40 mg/day |
NEVER exceed 4 weeks. Often used only in final 2 weeks before competition.
Side Effects
Critical Hepatotoxicity
very commonOne of the most liver-toxic steroids in existence. Can cause serious liver damage rapidly.
TUDCA 1g+ daily mandatory. Keep cycles extremely short. Liver bloodwork required.
Severe Aggression
very commonExtreme aggression and behavioral changes. Can be dangerous outside of controlled athletic settings.
Only use if aggression can be channeled appropriately. Not for daily life.
Acne
commonSevere acne due to extreme androgenic activity.
Proper hygiene; may require medical treatment.
Cardiovascular Strain
very commonSignificant negative impact on lipids and cardiovascular health.
Keep cycles extremely short; monitor bloodwork.
General Mitigation Strategies
TUDCA at high doses mandatory. Keep cycles to 2-4 weeks maximum. Only use pre-competition when aggression can be channeled. Regular liver bloodwork essential.
Support Supplements
Ancillary supplements commonly run alongside Halotestin to manage side effects, support the target tissue, or fill nutrient demands it creates.
Liver support (TUDCA + NAC)
KeyHalotestin is one of the most hepatotoxic 17-alpha-alkylated orals. TUDCA supports bile flow; NAC replenishes hepatic glutathione. Genuinely important here: but support only, not a safety guarantee.
- Dose
- TUDCA 1,000mg+/day; NAC 1,200mg/day
- Timing
- Throughout the (short) cycle
Lipid support (omega-3 + citrus bergamot)
KeyA potent oral androgen that crushes HDL. Omega-3 helps triglycerides; citrus bergamot lowers LDL via statin-like flavonoids.
- Dose
- Omega-3 4 g/day; citrus bergamot 1,000 mg/day
- Timing
- With meals
Blood pressure support (telmisartan / low-dose tadalafil)
Manages the blood-pressure and cardiovascular strain of a Halo run.
- Dose
- Telmisartan 20-40 mg/day; tadalafil 2.5-5 mg/day
- Timing
- Daily; titrate to readings
Post Cycle Therapy (PCT)
Standard PCT required. Can begin shortly after last dose due to short half-life.
How It Works
Halotestin is a testosterone derivative with extreme androgenic potency. It does not aromatize and does not cause water retention. Dramatically increases aggression and strength through CNS stimulation and androgen receptor activation.
Hormonal & Androgenic Profile
1900:850 (fluoxymesterone): extremely androgenic and anabolic on paper; used purely for strength and aggression
It is reported to be non-aromatizable due to steric hindrance from its 11-beta hydroxyl group, so no AI is needed. Isolated gyno reports exist but are not via classic aromatization, so an AI would not address them anyway.
Halotestin is a halogenated methyltestosterone-derivative, not a DHT-derivative, but it is intensely androgenic. Whatever modest 5-alpha-reductase contribution exists, finasteride does not meaningfully tame its harsh hair/skin androgenic effects.
Severely worsens lipids as a potent 17aa oral and crushes HDL. No estrogenic water retention, but liver and cardiovascular strain define its risk.
Fundamentals
Reference on the practices relevant to Halotestin: how they are done and where they go wrong. Not a recommendation to use it.
Legal Status
Schedule III controlled substance (USA).
Legal status varies by country and changes over time. This is a general summary, not legal advice.
WADA Status
Fluoxymesterone (Halotestin) is explicitly prohibited as an anabolic androgenic steroid.