Total Testosterone

Testosterone gradually declines in men from midlife, and lower levels are linked with reduced muscle, bone density and less favorable heart and metabolic health. Read it with SHBG, estradiol and hematocrit for the fuller picture.

Free Testosterone

SHBG tends to rise as men age, which can lower the unbound testosterone your tissues actually use even when total levels hold steady. That makes free testosterone an important marker to follow over the years.

Prostate Specific Antigen (PSA)

PSA is a protein made by the prostate, which naturally enlarges with age. Tracking it over time on a longevity panel gives you and your clinician a trend to watch rather than a single snapshot.

Estradiol

In men, estradiol is made from testosterone and supports bone strength, heart health and brain function with age. Its balance with testosterone, rather than either number alone, is what matters most here.

Sex Hormone Binding Globulin (SHBG)

This protein binds testosterone and naturally rises in men with age. Higher SHBG means less testosterone is free to act, so it is the key to interpreting both testosterone results on this kit.

Thyroid Stimulating Hormone (TSH)

Thyroid function can slow with age and quietly affect energy, cholesterol and heart rhythm. TSH screens for this, and thyroid changes can also shift SHBG and lipid levels on this panel.

Lipid Profile (4 Markers)

This covers the main cholesterol and triglyceride numbers tied to long-term heart risk. In men, lower testosterone with age is linked with less favorable lipids, making this profile a core part of aging well.

Creatinine

A marker of how well your kidneys clear waste, creatinine also runs higher with more muscle mass. Over time it helps track kidney health, which links closely with blood pressure and heart health as men age.

Hematocrit

Hematocrit shows what proportion of your blood is red cells. Testosterone stimulates red cell production, so this is an important companion marker, since blood that is too concentrated is linked with cardiovascular strain.

Hemoglobin

Hemoglobin carries oxygen through your blood. For men it helps show both healthy red cell production, which testosterone supports, and whether levels are drifting low with age, read alongside hematocrit.