Chemical Name(s):
Chemical Formula: C20H29C1O2
Molecular Weight: 337
Q Qatio: 2.6
Anabolic #: 74
Androgenic #: 28
Oral Bioavailability: Estimated at 40%
AR Binding Affinity: NA
SHBG Binding Affinity: NA
Half Life: ~16 hours
Legal Status (US): Not listed as a controlled substance

Average Dose:
100-150mg/day standalone
50-100mg/day when stacking

Average Cycle Length: 4-6 weeks

Halodrol is a 17aa steroid that converts to the steroid oral Turinabol after interaction with 3b-HSD at an estimated rate of about 5%.
Because of this low conversion, doses must be higher than other 17aa pro-steroids. However, it is suspected that Halodrol has decent potency without conversion as good results are seen despite the relatively low conversion to Turinabol. Based on Vida’s data Halodrol appears to be about as potent as testosterone, and significantly less androgenic.

Because of the 4-chloro group, halodrol has no progestational effects, it cannot interact with the aromatase enzyme, and it produces inactive 4-chloro-DHT metabolites. This makes androgenic side-effects such as hair loss, high blood pressure, acne and prostate enlargement less likely. Anecdotal reports would also have us believe that side-effects with this compound are fairly mild.

Although caution would still need to be had, the low androgenic value of this compound would also make it one of the more appropriate anabolic steroids for women wishing increase lean mass yet avoid a deeper voice, increased hair growth, acne and clitoral growth. (Oral Turinabol was actually the preferred steroid for Olympic female athletes in East Germany)

The lack of androgenic potency might be expected to create problems with gyno, however the low SHBG binding affinity has minimal interference with SHBG levels and/or freely circuiting estrogen and testosterone. It does not appear that halodrol has a significant gyno risk.
Because halodrol must be used at such a high dose to see noticeable effects, liver toxicity may become an issue. Therefore it is recommended to use a liver protecting supplement before and during halodrol cycles.

Gains from Halodrol generally take a few weeks to notice, but users can expect solid increases in strength, lean muscle mass, improved vascularity and minimal water retention. This allows some of the gains to be kept after the cycle if good diet and training are continued. Quick dramatic gains in size and strength are not generally noticed with Halodrol.

It is used successfully as a standalone, but would be expected to stack well with most other steroids, except 17aa oral due to liver toxicity concerns.

Products With This Compound

German Pharma Halodrol 

BioArmor Zeus

BioArmor Iron Dragon


“Hepatotoxicity Associated With Dietary Supplements Containing Anabolic Steroids”
Michel I. Kafrouni, Robert A. Anders and Sumita Verma
Clinical Gastroenterology and Hepatology; Volume 5, Issue 7, July 2007, Pages 809-812