Thus, it stands to reason that either creatine monohydrate or ethyl ester will work and have very similar effects with creatine monohydrate holding a very slight edge in terms of efficacy and cost per serving.
Creatine Monohydrate: Benefits, Side Effects, Dosages & FAQ
Kreider RB, Effects of creatine supplementation on performance and training adaptations.
Testosterone & Creatine
What is the effect of creatine on the sperm count? - Quora
Creatine Kinase : A New Marker of Sperm Quality
The effects of calcium and creatine phosphate take place rapidly; within 1 minute all improvements in sperm velocity and motility are fully achieved.