Oral Winstrol’s side effects can completely exclude Estrogen related side effects, as it cannot be aromatized into Estrogen at any dose. It’s androgenic side effects should be lesser than that of other anabolic steroids such as Testosterone or Trenbolone , but some users who are particularly sensitive can and do note various ‘flare-ups’ of androgenic effects, such as acne or hair loss (male pattern baldness), but most users should not have a problem. Oral Winstrol side effects of notable concern have to do exclusively with the liver, however. Because it is C17-alpha alkylated, it will present a measurable degree of hepatotoxicity ( liver toxicity ), which would necessitate regular monitoring of liver function through blood work (if possible) and supplementation with proper and effective liver support supplements such as NAC (N-acetyl cysteine) and/or tauroursodeoxycholic acid (TUDCA). Because Winstrol is so impacting on the liver, this presents an additional side effect worth noting: its intensely harsh negative impact on cholesterol values, more so than almost any other anabolic steroid . Winstrol in general is known as being notorious for raising LDL (bad cholesterol) and dramatically lowering HDL (good cholesterol). The result is a serious risk increase for cardiovascular disease. Oral Winstrol is by far worse for this due to its first pass direct interaction with the liver, and it is therefore imperative that cycle lengths remain short, supplementation with healthy omega-3 fats are a must, and anyone with underlying cardiovascular or cholesterol issues should steer completely clear of oral Winstrol. Lastly, although oral Winstrol is commonly touted as a ‘mild’ anabolic steroid, it is anything but mild on the HPTA (Hypothalamic Pituitary Testicular Axis), where suppression and/or shut down of the HPTA is guaranteed during use, which would necessitate a proper PCT ( Post Cycle Therapy ) protocol after the end of an oral cycle.