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Do Free Testosterone Boosters Work? What Studies Measured
Do free testosterone boosters work? A systematic review of 52 studies on 27 proposed boosters found that most fail to raise total testosterone. That review measured total testosterone, not free. The HoneyBoost label makes no testosterone claim, and no study tests the gummy.
Written by the HoneyBoost label deskUpdated · 5 min read
The short answer01
Do free testosterone boosters work?
Mostly not, on the evidence we can cite. A systematic review of 52 studies on 27 proposed boosters concluded that most fail to increase total testosterone (Morgado 2024, T-Booster Evidence Review (IJIR)).
The review did name one exception. It called Eurycoma longifolia, the herb known as tongkat ali, possibly effective for men with late-onset hypogonadism and for healthy men. The counts behind that are small, and the effect is on total testosterone, not on erections or sex drive.
That is a result about a category and a few herbs, not about a gummy. HoneyBoost has 25 mg of tongkat ali extract per gummy, and no source tests it. The label itself never mentions testosterone.
Free versus total02
What is the difference between free and total testosterone?
Total testosterone counts all the hormone in the blood. Free testosterone counts the part that is not bound to carrier proteins.
The Endocrine Society guideline recommends a fasting morning total testosterone test with a reliable assay as the first step, repeated to confirm. It suggests a free testosterone test when total is near the lower limit of normal or when the binding protein, SHBG, is altered (Bhasin 2018, Endocrine Society Testosterone Guideline).
| Measure | What it counts | When a clinician may use it |
|---|---|---|
| Total testosterone | All testosterone in the blood | First test, usually a fasting morning sample, repeated to confirm |
| Free testosterone | The portion not bound to proteins | When total is borderline or SHBG is altered |
A free-testosterone number on a supplement ad cannot replace this. Only a blood draw can show your level, and a clinician reads it with symptoms.
The claims gap03
What did studies of booster supplements actually measure?
They found a wide gap between ads and data.
One review looked at 50 supplements sold as boosters. 90% claimed a testosterone increase, yet only 24.8% had any published data showing an increase, and 61.5% had no data at all (Clemesha 2020, T-Booster Claims (WJMH)). The median product carried 272% of the zinc RDA, and 13 exceeded an FDA upper limit.
A second review of the top five online sellers examined 191 studies on the ten most common ingredients. Only 19% were human studies. Among 37 human studies, 30% saw a testosterone increase and 46% saw no effect (Balasubramanian 2019, Testosterone Imposters (J Sex Med)).
Those are category findings. We apply them to HoneyBoost only as a caution: the label lists seven lines with printed amounts, and each one needs its own evidence. See our testosterone boosters explained guide.
HoneyBoost: from $49 a bottle30 gummies a bottle · 2, 3 or 6 bottles · shipping shown at checkout · 60-day money-back guarantee
See packsWhat to do04
What should you do instead of buying a booster?
Get the test first. If symptoms bother you, see a provider, because Cleveland Clinic advises against leaning on over-the-counter supplements for low testosterone.
- Ask for two morning total testosterone tests if low drive, low energy or erection trouble persists.
- Bring a list of all medicines and supplements, including the Supplement Facts of any gummy.
- Ask whether sleep, weight, alcohol or medicines could explain the symptoms.
- Keep every prescribed medicine and ask your doctor or pharmacist before changing anything.
The post on whether testosterone boosters are safe covers upper limits and hidden drugs. The low testosterone basics guide covers the test. The HoneyBoost label also tells people with a medical condition or other medications to consult a physician.
FAQ05
HoneyBoost questions people ask
What is free testosterone?
Free testosterone is the part of testosterone in the blood that is not bound to carrier proteins such as SHBG. Clinicians may test it when total testosterone is borderline or when binding proteins are altered, per the Endocrine Society guideline.
Do herbal testosterone supplements raise free testosterone?
We found no study that measured it. The review we cite looked at total testosterone, and found most proposed boosters fail to raise it. Tongkat ali was called possibly effective, with small counts.
Can a supplement lower my testosterone test result?
Not that we can cite, but maca may interfere with testosterone immunoassays, per Memorial Sloan Kettering. Tell your clinician about every supplement before a blood draw.
Are online testosterone booster reviews reliable?
Not very. A review of top online sellers found that after filtering untrustworthy reviews, reports of increased libido fell 91%. The FTC has also banned fake reviews. Star ratings overstate results.
Does HoneyBoost say it raises free testosterone?
No. The label never mentions testosterone, free or total, and no study tests the gummy. It lists seven ingredients with printed amounts, from zinc 2.5 mg to tongkat ali extract 25 mg.
Who wrote this06
Written and reviewed by
Pages built from the label, the order page and linked NIH, FDA, FTC, Mayo Clinic and peer-reviewed sources.
Last updated . Read our editorial standards and how we check reviews. This website is the information site for a USA Authorized HoneyBoost Retailer. It is not the manufacturer or the distributor named on the label. We earn money when you buy through our order links.
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