Eight numbers that explain how you feel.
The Xilo baseline panel measures the hormones behind energy, drive, muscle, and mood. Collected at home in minutes, processed by CLIA-accredited lab partners, explained by a licensed provider.
Every marker earns its place.
This is not a 130-marker fishing expedition. It is the specific set a provider needs to evaluate male hormone health and rule out the common imposters.
| Marker | What it tells you | Why it matters |
|---|---|---|
| Total testosterone | Overall circulating testosterone | The headline number providers anchor on |
| Free testosterone | The unbound, usable fraction | You can be "normal" on total and low where it counts |
| SHBG | The protein that binds testosterone | Explains gaps between total and free |
| Estradiol | Primary estrogen | Balance matters; high or low both cause symptoms |
| LH | The pituitary's "produce" signal | Separates production problems from signaling problems |
| FSH | Fertility-related signaling | Context for fertility-conscious treatment choices |
| TSH | Thyroid function screen | Thyroid issues mimic low-T symptoms constantly |
| HbA1c | Three-month blood sugar average | Metabolic health and testosterone travel together |
Kitchen table to clinical answer.
Kit arrives
Everything included: lancets, collection card, bandage, prepaid return envelope, and instructions written for humans.
Collect in the morning
Testosterone peaks early, so you sample before 10am. A few drops from a finger-prick is all the card needs.
Mail it back
Drop the prepaid envelope in any mailbox. Your sample goes to a CLIA-accredited lab partner for processing.
Results, explained
Numbers land in your secure portal with plain-English context, and a licensed provider reviews what they mean for you.
The panel is the beginning, not the product.
Numbers without a plan are trivia. Every Xilo panel ends in a provider conversation about what your results mean and which path fits, even when the honest answer is "your levels are fine."
- Low levels, eligible Discuss Testosterone RX or RX+ with your provider
- Borderline Confirmatory testing, retest windows, and lifestyle levers first
- Normal Foundations like T-Base Daily plus the habits that actually move hormones
You cannot manage what you have never measured.
Order the panel on its own, or take the quiz and get it bundled into a treatment plan.