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Which blood tests should you get for adult or hormonal acne?

Short answer

Adult acne — especially along the jawline, flaring before periods, with irregular cycles or excess hair — often has a hormonal driver labs can measure: total and free testosterone, DHEA-S, SHBG, and LH/FSH for PCOS, with fasting insulin and A1c because insulin resistance raises androgens. Thyroid and prolactin round out the picture. Sudden severe acne with rapid hair growth or a deepening voice needs prompt evaluation.

Medically reviewed by Youmna DiStefano, MD · Last reviewed September 2026

When should you see a clinician instead of ordering a test?

  • Rapid-onset severe acne with a deepening voice, enlarged clitoris or sudden facial hair growth — prompt evaluation for an androgen-producing tumor
  • Acne with fever, painful deep nodules and feeling unwell (possible acne fulminans)
  • Periods that have stopped for three months or more without pregnancy

Why these tests for adult acne?

Androgens drive oil production. Total and free testosterone with SHBG show how much active hormone is reaching the skin; DHEA-S separates an adrenal source from an ovarian one. In women, LH, FSH and AMH support or exclude PCOS, the most common hormonal cause.

Insulin resistance lowers SHBG and pushes the ovaries to make more testosterone, so fasting insulin and A1c are part of the same evaluation and change what treatment makes sense.

TSH and prolactin are checked because thyroid disorders and high prolactin disturb cycles and skin, and are easily treated when found.

Which conditions do these tests help evaluate?

  • PCOS Androgens, LH/FSH, insulin and thyroid markers to investigate PCOS.
  • Thyroid Problems TSH, Free T4/T3 and antibodies to evaluate an under- or over-active thyroid.

Which tests, and what do they cost?

Prices are cash-pay; every order adds one $6 lab processing fee. Physician authorization is included; no insurance or referral needed.

Test or panelTypePriceFastingResults
Women's Hormone PanelSaves $129.90 vs ordering the tests separatelyPanel · 11 tests$239.99No3–5 business days
Women's Hair Health PanelSaves $401.82 vs ordering the tests separatelyPanel · 19 tests$469.99No4–7 business days
Pre-Diabetes PanelSaves $34.96 vs ordering the tests separatelyPanel · 5 tests$89.99Yes2–5 business days
Testosterone, Free & Total + SHBGTest · 3 biomarkers$69.99No3–5 business days
DHEA-SulfateTest$32.99No1–3 business days
LH (Luteinizing Hormone)Test$36.99No1–3 business days
FSH (Follicle Stimulating Hormone)Test$29.99No2–4 business days
Egg Reserve & Fertility Test (AMH)Test$74.99No3–5 business days
Insulin, FastingTest$22.99Yes2–4 business days
Hemoglobin A1cTest$21.99No2–4 business days
TSH (Thyroid Stimulating Hormone)Test$26.99No1–3 business days
ProlactinTest$39.99No2–4 business days
Estradiol (E2)Test$35.99No1–3 business days

Common questions

When should acne hormone tests be drawn?

Morning, ideally days 2–5 of the cycle for LH/FSH/estradiol, and off hormonal birth control for several weeks if you want an unmasked androgen picture — the pill raises SHBG and lowers free testosterone.

Can acne be the only sign of PCOS?

It can be the most visible one. PCOS is diagnosed from two of three: irregular ovulation, high androgens (lab or clinical), and polycystic ovaries on ultrasound. Persistent adult acne plus irregular cycles is enough to test.

Do men need hormone tests for acne?

Rarely. Adult male acne is seldom due to abnormal hormone levels unless testosterone, DHEA or anabolic supplements are involved — in which case a testosterone and DHT check is informative.

Educational content, not a diagnosis. Lab results are one input; a clinician interprets them with your history and exam.