About William Llewellyn

William Llewellyn+ is a research scientist and writer in the field of human performance enhancement. He is the author of several books including Underground Anabolics and the ANABOLICS reference guide series, one of the most widely read titles on the subject of performance enhancing substances.

Why Do You Recommend Against Spot Injections?

Hi Bill, I’ve read that you do not recommend spot injections. How come? I’ve injected in my biceps, triceps, and calves without problems. Are you going soft on us?

Is the Soreness from Testosterone Injections Normal?

Mr. Llewellyn: I’ve been getting very sore from testosterone enanthate injections. I’ve also had a fever two times for a couple of days after my shot. It is the first time I have used the drug. I’ve only tried Deca and oral steroids before. Is it normal? I am actually planning to stop my cycle [...]

Are Gains More Permanent with Oral Steroid Cycles?

Hi William: I’ve been on and off steroids for years. I respond well to them even at pretty low doses (300-600mg/week), but always crash afterwards no matter what I do. Lately I’ve been trying something different. For the past 12 weeks I’ve been taking 100mg of orals (Winstrol, Dianabol, Anadrol) per week, and have slowly [...]

Is the Designer Steroid DMT Safe?

Q: What is your knowledge on Desoxymethyltestosterone (DMT, Madol)? Does it convert to estrogen via aromatase and DHT via 5-alpha reductase? How does it affect HPTA? Is it less androgenic than testosterone? Do you recommend it as a beginner’s first cycle? Is it safe?

Is Growth Hormone Useful During Post Cycle Therapy?

Hi William, what are your thoughts of using growth hormone during PCT?

Do You Recommend Testosterone Only Cycles?

Q: I have two 10ml bottles of testosterone enanthate (200mg/ml). Is this enough for a cycle? I read that you should always use testosterone as a base, but that you need to stack it with other drugs too. How do you feel about a testosterone only cycle like this?

What is the Difference Between Proviron and Masteron?

Q: What is the difference between Proviron and Masteron? I heard they are both DHT derivates and one was really just an oral form of the other. Could I use Proviron instead of Masteron for contest prep? I lost my source for BD Mastabol.

Can Real Dianabol Be Taste Tested?

Dear William: I’ve had two different dbols before, and both pills tasted very bitter. I have a new one that tastes very different, kind of bland. Did I get a fake? Does Dianabol taste bitter?

Why are Steroids Stacked?

Q: What is the premise of stacking and what anabolic-androgenic steroids (AAS) can be stacked?

Does This Underground Lab Produce Quality Steroids?

Dear William, I purchased a 10ml bottle of testosterone enanthate from [an underground lab distributed on the Internet]. It contains 250mg/ml of steroid. Is this lab good? My dealer said it is a high quality underground steroid. What exactly does that mean?