Testosterone levels by age come with a wide normal range. The lab said 320 ng/dL and the lab said normal. You are 42 and you have the energy of a different decade. Nobody wants to discuss the number because 320 sits inside the population range. The gap between a normal testosterone result and an optimal one is where most of the conversation in men's health actually happens. This page walks through both, by decade.
At GoodLife Health the number is read as part of a system rather than against a chart. One comprehensive Biomarker Audit every 90 days, four per year, is included in the $299 per month membership, with total and free testosterone read alongside SHBG, thyroid and the metabolic markers that shape how testosterone behaves in the body.
- Population reference ranges for total testosterone are wide, commonly roughly 300 to 1,000 ng/dL and a value can sit inside the range while the symptoms are real.
- Free testosterone, SHBG and thyroid function give a total value its meaning, which is why the audit carries them on the same draw.
- Diagnosis depends on symptoms with at least two morning values, not one number and a chart.
- The Biomarker Audit includes full hormone and thyroid panels every 90 days, four times a year, inside the $299 monthly membership.
The ranges, by decade
Total testosterone declines gradually with age and the commonly cited population range for adult men runs roughly from 300 to 1,000 ng/dL. What the single range hides is where most healthy men at each age actually sit.
| Decade | Commonly observed typical total T | What matters clinically |
|---|---|---|
| 20s | 600 to 700+ ng/dL | Establishing a personal baseline early is the most useful step |
| 30s | 500 to 600 ng/dL | Symptoms plus two morning values outweigh any single number |
| 40s | 400 to 550 ng/dL | SHBG and free T matter more as total drifts down |
| 50s | 350 to 500 ng/dL | Metabolic health moves testosterone as much as age does |
| 60s | 300 to 450 ng/dL | Normal-for-age is a statistic, not a treatment decision |
Treat the table as orientation rather than diagnosis. Labs vary in their assays and their ranges and a value taken from one method cannot be read against another method's chart. What survives the variance is the principle: a number is interpreted against your symptoms, your morning draw timing and your other markers, never against the chart alone.
Why normal is not the same as optimal
The reference range is built from the tested population and the tested population includes a great many men with metabolic syndrome, poor sleep and sedentary decades. Being average among them is not the clinical goal. A man at 320 ng/dL with fatigue, low libido and the mood changes that arrived with it has a clinical conversation worth having regardless of where the range boundary sits and the guideline answer is that diagnosis requires symptoms together with at least two separate morning values, not one draw and a chart.
Free testosterone is the other half of the picture that total alone misses. SHBG rises with age and with certain conditions, binding more of the total and leaving less available to tissues, so a total of 500 ng/dL with high SHBG can feel like 300 ng/dL with low SHBG. This is why the audit reads total, free and SHBG together rather than reporting a single number.
What moves testosterone besides age
Age gets the blame and shares it with everything metabolic. Insulin resistance, visceral fat, poor sleep, chronic stress, heavy alcohol use and certain medications all pull testosterone down and in many men the metabolic inputs move the number more than birthdays do. This is why our panel pairs the hormone work with fasting insulin, HbA1c, lipids and hs-CRP on the same draw. The man whose testosterone is low because his metabolic health is low has a different path forward from the man whose decline is age itself and the panel is what tells the two apart.
It also runs the other way. Low testosterone worsens body composition and insulin sensitivity, which deepens the metabolic picture and pulls the hormone lower. The loop is real and the quarterly audit exists to watch both sides of it move together rather than treating them as separate problems. Cardiometabolic optimization treats metabolic, hormonal and cardiovascular health as one system because in the body that is exactly what they are.
What the $299 membership includes
The membership is $299 a month, month to month after a two-month start. The fee covers clinicians licensed in all fifty states, four Biomarker Audits a year with total and free testosterone, SHBG, full thyroid and hormone panels and the cardiometabolic markers, every result in your hands, asynchronous messaging with the care team and video visits. There are no tiers and the fee is the same whatever is prescribed and whatever the dose.
Medication is unbundled. When testosterone therapy is clinically indicated, your clinician sends the prescription to the pharmacy you choose and the pharmacy bills you at its own price. GoodLife Health sets nothing, sees nothing and takes nothing on that transaction. There is no molecule upcharge and no dose upcharge. One flat fee pays for the doctor and the pharmacy bills the medicine at cost.
The $598 first charge covers the first two months and the first audit. It is held at sign-up and charged only once a clinician accepts you into care. If the clinician cannot accept you, the hold is released and you are never charged. Once accepted, the first two months are charged and non-refundable.
The membership is $299 a month with a two-month start: $598 for the first two months, held at sign-up and charged only once a clinician accepts you. Four full Biomarker Audits a year with the complete hormone and thyroid picture and the clinical relationship around them. Medication is billed separately by the pharmacy at pharmacy cost with zero markup.
Who this is for and who it is not for
This is for the reader who has a number and a symptom list and no clinician who will connect them and for the one who wants the metabolic side of the hormone picture measured rather than assumed. It suits the person who would rather have one clinician hold the whole panel across a year than collect single values from single visits.
It is not for someone who wants a prescription from a first conversation without labs, because testing first is the model and we will not pretend otherwise. It is not for anyone outside the United States, because our clinicians are licensed in the fifty states. And it is not insurance. The membership pairs with insurance for catastrophic coverage and replaces the primary-care relationship, not the policy.
FAQ
What is a normal testosterone level by age?
The commonly cited population range for adult men runs roughly from 300 to 1,000 ng/dL and typical values drift lower by decade, from the 500 to 600 ng/dL range in the 30s toward 300 to 450 ng/dL in the 60s. Ranges vary by lab and assay, so trends should be followed within the same method.
What is an optimal testosterone level?
There is no single optimal number. The clinical question is whether your value, read with your symptoms, free testosterone, SHBG and your metabolic markers, supports the life you want. A value inside the range with real symptoms still deserves a clinical conversation.
Can my testosterone be normal and my symptoms real?
Yes. Total testosterone inside the population range can coexist with low free testosterone when SHBG is elevated and with symptoms driven by thyroid or metabolic factors the panel also measures. This is why the audit reads the whole system rather than one line.
Do I need two testosterone tests before treatment?
Guideline practice wants at least two separate morning values with consistent symptoms before diagnosing low testosterone, because a single afternoon draw can read falsely low. Our clinicians follow that standard.
Does insulin resistance lower testosterone?
It often does. Insulin resistance and visceral fat shift hormone metabolism downward and in many men the metabolic inputs move testosterone more than age does. The quarterly audit measures both sides so the plan targets the actual driver.
Is testosterone therapy included in the membership fee?
No. The $299 fee covers the clinician and the quarterly labs. Testosterone therapy, like any medication, is billed separately by the pharmacy you choose at its own price, with zero markup, no molecule upcharge and no dose upcharge from us.
Is this available outside the United States?
No. Our clinicians are licensed to practice in the fifty states and the membership serves United States residents only.
One last thing
A normal number never explained the fatigue, because normal was the wrong question. The right question is what your number means for the next twenty years with the whole panel beside it. If that conversation has never happened, the eligibility check is free, takes a few minutes and never results in a charge unless a clinician accepts you into care.
Related Guides
- Testosterone levels by age in men: reference ranges
- How to read your testosterone lab results
- Low testosterone in men: what labs actually show
- Testosterone therapy for men: what labs to track
- Cardiometabolic Optimization: the definitive guide
References
- Testosterone Therapy in Men with Hypogonadism: An Endocrine Society Clinical Practice Guideline. 2018. doi.org/10.1210/jc.2018-00229