Bioavailable testosterone refers to the free testosterone plus the albumin-bound fraction — both of which can dissociate from their binding proteins and enter cells to act on androgen receptors. Unlike tightly SHBG-bound testosterone, albumin-bound testosterone is weakly held and readily available to tissues.
GearCheck connects glossary concepts to your actual bloodwork — showing exactly where your values sit and what they mean in the context of your protocol.
Analyze My Bloodwork →GearCheck provides blood marker analysis and harm reduction education. Information is for educational purposes only and does not constitute medical advice. Always consult a healthcare professional.