Sex Hormone Panel Analysis
A "normal testosterone" result on your health check — does it really explain the fatigue, the dropping libido, the muscle loss? Or the irregular cycles, the unwanted hair growth, the persistent low mood? Total testosterone only shows the inventory. What actually reaches your cells is Free / Bioavailable Testosterone — while SHBG decides how much gets locked away, and FSH + LH tell you whether the problem sits in the gonads themselves or in the brain's signaling above them. One blood draw, four markers — to clarify whether you're running low on total supply, locked out of what you have, or missing the signal from upstream.
SECTION 01
What is this test for?
透過【血液】檢體,同時偵測雄性素活性核心(Free Testosterone、Bioavailable Testosterone)、結合運輸狀態(SHBG)與上游指令訊號(FSH、LH),比單看總睪固酮更精準、比症狀自我評估更客觀,是釐清「總量、可用量、上游訊號」三個層級失衡的關鍵鑑別工具
Most health checks stop at total testosterone, but symptoms track with Free / Bioavailable Testosterone. Add SHBG to show binding state and FSH/LH to localize the issue — read together, five markers separate "low supply," "locked away," and "broken signal" into three different actionable categories. For men: read Free T against LH feedback to assess androgen activity and gonadal function. For women: read SHBG abnormalities, the LH/FSH ratio, and androgen excess to clarify PMOS (Polyendocrine Metabolic Ovarian Syndrome), cycle disturbance, and estrogen-related metabolic risk. Same four markers, two distinct lenses. Standard health checks already report Total Testosterone — we don't duplicate it. What we add are the two dimensions a single total number cannot show: bioavailability and upstream signal. Paired with existing health check data, this panel completes the sex hormone map. Only this 1–2% can actually enter cells and drive libido, strength, energy, and mood. The remaining 98% is bound to SHBG and albumin — inventory, not active supply. Over 60% of PMOS (Polyendocrine Metabolic Ovarian Syndrome) patients show an LH/FSH ratio above 2:1 — an important auxiliary marker alongside the Rotterdam criteria when investigating cycle disturbance.Normal totals don't mean your body actually has enough
Total, bioavailable, and upstream — all in one panel
Same panel, two reading frameworks
The two dimensions Total T can't see
Free T as a share of total testosterone
LH/FSH ratio threshold for PMOS (Polyendocrine Metabolic Ovarian Syndrome)
Sleep and nutrition are dialed in, yet you feel "out of fuel" — performance plateaus, intimacy feels distant. It may not be age. Free T may have quietly dropped below what daily life demands. Erratic cycles, persistent jawline breakouts, increased body hair, stubborn weight — when LH/FSH runs high and SHBG runs low, it often points to PCOS or insulin-resistance-related androgen excess. Your health check says Testosterone is in the reference range, but you know your body doesn't feel like it did two years ago. About 30% of "normal total" cases have low Free T — that's the dimension this panel adds. Training volume is high, nutrition is strict, but body fat plateaus and hypertrophy slows. Free T and SHBG are core markers for recovery capacity, anabolic response, and insulin-metabolic coordination.Who should know earlier?
Persistent fatigue, low libido, muscle loss
Irregular cycles, acne, hirsutism, fertility concerns
Total testosterone reads "in range" but symptoms remain
Fitness, fat loss, or muscle gains hit a wall
"I assumed it was just stress — until Free T came back at half of what it would have been ten years ago." After 30, testosterone declines roughly 1% per year — but SHBG rises in parallel. That means even when total numbers look stable, the genuinely usable amount can be falling at nearly double the speed. By the time Total T drops below the reference range on a health check, bioavailability has often been insufficient for years. For women, SHBG and LH/FSH imbalances start even earlier. PCOS symptoms typically emerge in the late teens or twenties, but are written off as "skin issues" or "irregular periods that never settled," only being properly investigated when fertility becomes a question. Seeing all four markers together earlier means catching which axis is drifting before it becomes a story years in the making. This test is intended for wellness evaluation and lifestyle management. It does not replace medical diagnosis. For specific symptoms or treatment, consult a qualified physician. SHBG rises by about 1.2% per year in parallel, making Free T fall faster than total numbers suggest. PCOS is the most common endocrine disorder in reproductive-age women — yet up to 70% of cases remain unrecognized before diagnosis. Among men presenting with hypogonadal symptoms, about a third still have total testosterone within the reference range — only Free T reveals the gap.By the time the symptoms are obvious, your body has been adjusting for years
Annual T decline in men after 30
Global PCOS prevalence in reproductive-age women
Symptomatic men with "normal total, low Free T"
"Total testosterone is normal" is a common comfort, but 98% of testosterone in circulation is bound to proteins. Only the 1–2% that's free can actually enter cells. Research shows that among men with hypogonadal symptoms, about 30% still have total testosterone within the reference range. ✓Symptoms track with what's usable — not what's in the inventory. Menstruation only confirms that the endometrium is cycling. It doesn't confirm regular ovulation, nor does it confirm balanced androgens, SHBG, or LH/FSH ratios. A meaningful share of PCOS cases still menstruate while androgen excess and metabolic risk quietly accumulate. ✓Regular cycles are an outcome — endocrine axis balance is the cause. Popular boosters (D-aspartic acid, Tongkat Ali, zinc, vitamin D) produce highly variable results. Without knowing whether the issue is low total, SHBG-bound, or weak LH signal upstream, you're as likely to throw the system off balance as to help it. ✓Knowing which layer the problem sits in is what makes a supplement strategy meaningful. Testosterone decline starts at 30, and PCOS signs typically emerge in the late teens or twenties. Chronic stress, sleep debt, and overtraining can blunt hypothalamic-pituitary signaling directly — leaving a 30-year-old with the endocrine profile of someone fifteen years older. ✓Age is a rough proxy — axis status is the real answer. Fatigue, low libido, mood swings, muscle decline, climbing body fat — these "could-be-anything" symptoms are exactly the textbook presentation of sex hormone imbalance. Reading all four markers together turns "could be" into "this specific axis." ✓Vague symptoms become useful when they point to the same axis. HRT and TRT aren't the only options. Sleep restructuring, resistance training, body fat management, and targeted nutrients (zinc, magnesium, vitamin D) all have clinical evidence for improving Free T and modulating SHBG. Studies show Free T can rise 15–25% after 12–24 weeks of structured lifestyle intervention. ✓Knowing the numbers lets you choose the path — pharmacological intervention is never the only one.Have you ever thought this?
"My testosterone was in range on the health check — I'm probably fine."
"My period comes, so my hormones must be fine."
"I'll just take a testosterone booster — no need to test."
"I'm still young — hormones can't be the issue yet."
"My symptoms are vague — testing probably won't show anything."
"Even if it's low, I don't want hormone replacement."
A focused add-on for those who already have health check data and want to fill in the "bioavailability + upstream signal" picture. The core program already covers TSH, Cortisol, DHEA-S, Estradiol, Progesterone and 8 endocrine essentials — pairing it with this add-on completes the full sex hormone map: bioavailability and upstream signal included. A sex hormone panel tells you whether the usable amount is there and where the signal comes from — Body Decoded tells you how the stress axis, thyroid, and gonadal axes pull on each other, and which lever to pull first.A single missing dimension, or the full hormone map?
Sex Hormone Panel Analysis
Body Decoded + Sex Hormone Add-On
