Nolvadex PCT (Tamoxifen Citrate) – Trusted Post-Cycle Therapy for Natural Testosterone Recovery Nolvadex PCT, containing the active ingredient Tamoxifen Citrate, is a widely-used SERM (Selective Estrogen Receptor Modulator) designed to block estrogen receptors and stimulate natural testosterone production after a steroid cycle. It is one of the most essential tools in any serious bodybuilder’s post-cycle