Halotestin (Fluoxymesterone)
Also known as Halo, Halotestin, Fluoxymesterone
An extremely potent oral used only for short bursts of strength and aggression - and one of the most liver-toxic steroids in existence.
Anabolic steroid — not a peptide
This compound is an anabolic steroid, not a research peptide. It has a different risk profile, legal status, and side-effect spectrum. The information here is for education only and is not medical advice or a recommendation to use. Read the medical disclaimer.
How it's taken (route)
swallowed as a capsule or pill, usually on an empty stomach
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- Documented dose
- 10–40 mg
- Typical frequency
- Daily, short bursts only
- Cycle
- 2 weeks on, 12 off
- Half-life
- Roughly 9 hours
- Regulatory status
- Controlled anabolic steroid (Schedule III in the US). Prescription only.
No syringe needed
Halotestin (Fluoxymesterone) is taken oral capsule or tablet, so there is no U-100 syringe draw for it.
What it does
Halotestin adds almost no size but produces sharp strength and aggression, which is why it is used before a powerlifting meet or contest rather than through a cycle. It is among the harshest compounds on the liver and lipids, and runs are typically kept to two weeks or less.
Mechanism
17-alpha-alkylated, highly androgenic testosterone derivative. Does not aromatize. Extremely hepatotoxic.
Storage — lyophilisedwhat's this?
Tablets: cool, dry place away from light.
Storage — reconstitutedwhat's this?
Not applicable - oral tablets.
Reconstitution noteswhat's this?
Oral tablets.
Commonly reported side effects
- Severe liver toxicity (major)
- Extreme HDL cholesterol suppression
- Aggression and mood instability
- High blood pressure
- Headaches
- Suppression of natural testosterone
Contraindications noted
- Any liver condition or raised liver enzymes
- Cardiovascular disease or hypertension
- Any mood or anger issue
- Anyone new to steroids
- Pregnancy or breastfeeding
- Under 21 years of age
Research notes
Very limited legitimate use. Considered one of the most toxic anabolic steroids available; length of use is the main risk factor.
Vendors carrying Halotestin (Fluoxymesterone)
These research suppliers list this compound. Prices, vial sizes and testing vary — always check the current lot certificate before you buy.
Peptide Streak does not sell peptides and is not affiliated with these vendors. Some list metabolic compounds under coded product names.