Published research exists for ingredients in this formula. Whether this product’s doses match those studies could not be confirmed.

MARS MEN Testosterone Booster for Men
Checked against public sources on July 26, 2026 · LookCloser does not sell or recommend supplements.
Does the marketing hold up?
Category context: sexual-enhancement products carry documented FDA risk. This is category history, not proof about this product, but it changes how much unsupported claims deserve to be trusted.
“Couldn’t verify” means we looked and found no public proof — not a mark against the product. Most supplement claims cannot be independently verified by anyone, so grey is the normal state of this industry.
The checks, one by one
1 promise needs a closer look.
◐Partly confirmed1
Ingredient research can support context, but it is not a trial of this exact product.
△Claimed without support found1
We found no study of this product measuring the stated outcome over the stated timeframe.
?Couldn’t verify independently2
“Made in USA” can describe only final bottling. Ingredient-sourcing records were not located for this product.
No named laboratory or lot-specific certificate was found for this exact product. A related brand page names no testing issuer and links no product-bound report; its UPC is not published. NSF, IFOS, USP, and Informed-Sport were not checked in this record. This is a public-evidence limit, not a finding that testing did not occur.
We looked and found no public proof. That does not count against the product.
What is worth knowing.
Headlines first. Open evidence only when you want the source trail.
Category context: sexual-enhancement products carry documented FDA risk
This is category history, not proof about this product, but it changes how much unsupported claims deserve to be trusted.
Evidence and sources
FDA's health-fraud program documents sexual-enhancement products as the most common supplement category found to contain undeclared prescription-drug ingredients. This is a category-level documented fact from FDA's public database — not a test result for this specific product. …
Locked evidence record →Open the full source-linked findingRegistered owner records: Xufeng Liu · Mars Health, Inc.
The public ownership record is ambiguous. We show the exact candidates instead of choosing one by name similarity.
Evidence and sources
USPTO returned multiple live supplement-class records for the exact brand wordmark: Xufeng Liu, Mars Health, Inc.. These records answer who owns registrations for the brand; the separate product-to-owner or manufacturer link remains open.
Locked evidence record →Open the full source-linked findingReviews rose from 0 to 102 between April 28 and July 25, 2026 — no sudden jump.
A count that moves steadily is ordinary. A sudden burst is what deserves a closer look.
Evidence and sources
Written reviews rose from 0 to 102 between April 28 and July 25, 2026. The largest rise inside any single 30-day window was about 74, so the count moved in steps rather than in one burst.
Locked evidence record →Open the full source-linked findingWhat remains open 3
- We have not found a public label filing for this exact product.
- No FDA recall matched this brand in the current search.
- Barcode checksum is valid; no independent product record was found.
These are evidence gaps, not strikes against the product.
The brand has 2 exact supplement-class records
These are the USPTO records behind the brand name. We show them all rather than choosing one by similarity.
China · Registration application / registration number not stated
No. 057, Maonongying Village, Damiaoying Administrative Village, Haojiaying Township, Zhangbei County, Zhangjiakou City, Hebei Province, 076450, CHINA
Goods covered by this record
IC 005: Dietary food supplements; Dietary supplements for human consumption; Dietary supplements; Natural dietary supplements; Nutritional supplements.
Delaware, USA · Registration application / registration number not stated
404 West Milton Street, Austin, Texas 78704, UNITED STATES
Goods covered by this record
IC 035: On-line retail store services featuring dietary and nutritional supplements for boosting testosterone; Retail store services featuring dietary and nutritional supplements for boosting testosterone.
This answers who owns registrations for the brand wordmark. It does not by itself prove which entity made, imported, or sold this specific product. Open USPTO source ↗
Dose and research context
We could not match an amount on this product to a studied range for the same ingredient, so these links are ingredient background rather than a measurement of this product.
Price check for this exact product
Amazon
Exact UPC/GTIN match$3.30 per labeled serving
matching UPC/GTIN · checked Jul 26, 2026
View on Amazon ↗Brand website
Official product-page candidate · UPC absentOfficial shopping lead; excluded from exact price comparisons.
Mars Men Natural Testosterone Booster for Men – 30 Capsule Supply (GMC Only) · 30 Days Supply. Confirm the package UPC/GTIN before buying.
Check brand website ↗iHerb
Not confirmedWe only show a price when the seller publishes the same barcode as the bottle. We haven’t found that match here.
Search iHerb ↗Target
Not confirmedWe only show a price when the seller publishes the same barcode as the bottle. We haven’t found that match here.
Search Target ↗Walmart
Not confirmedWe only show a price when the seller publishes the same barcode as the bottle. We haven’t found that match here.
Search Walmart ↗Only one exact price was available at build time; prices change by date, seller, and promotion.
The brand-page price is shown as a shopping lead only. It is excluded from the exact-product price difference because the page does not publish this record's matching UPC/GTIN.
Reference prices only · no affiliate links · every compared seller must publish the matching UPC/GTIN.
Want to inspect the evidence?
The full report shows every source, the exact unresolved question, and the documentation that would settle it.
Record built July 26, 2026. Sources: source listing observed at check time · USPTO Trademark Search · Keepa exact-listing history · NIH / published research · certification and regulator records where available. LookCloser publishes evidence and gaps; it does not advise for or against any supplement. Evidence-based corrections welcome.