Price index

Thymulin price per mg, and where to buy it

4 listings from 4 vendors, refreshed Oct 16, 2026.

$2.00/mg

Lowest

$5.25/mg

Median

$10.00/mg

Highest

How much does Thymulin cost?

A 10 mg vial, the most common size, costs $65 at the median listing, and $40 to $100 across 3 listings.
Per milligram, prices run from $2.00/mg to $10.00/mg across 4 vendors, a 5.0× spread. The median listing is $5.25/mg.
The cheapest in-stock listing from a vendor we rank is $2.00/mg from Peptide Plugs (transparency 57/100).
None of these vendors publishes batch-specific COAs that we could find.

Where to buy Thymulin: lowest prices from the most transparent vendors

The cheapest in-stock Thymulin from vendors scoring 60 or more on our transparency checks, by price per mg, leaving out vendors with red flags or a warning letter, lawsuit or seizure in the past three years (why).

#	Vendor	Transparency	COAs	Best listing	$/mg	Vendor's page
1	BioLongevity Labs	72/100	Generic COAs only	10 mg for $65	$6.50/mg	View

All Thymulin listings

Vendor	Transparency	Product	Size	Price	$/mg	vs median	Stock	Vendor's page
Peptide Plugs	57/100*	Thymulin 20mg	20 mg	$40	$2.00/mg	−62%	In stock	View
Polaris Peptides	45/100	Thymulin 10mg	10 mg	$40	$4.00/mg	−24%	In stock	View
BioLongevity Labs	72/100	Thymulin Peptide (10mg)	10 mg	$65	$6.50/mg	+24%	In stock	View
Southern Aminos	10/100*	Thymulin 10mg	10 mg	$100	$10.00/mg	+91%	In stock	View

Transparency is our score for how much a vendor makes public about itself, not a purity test: only a lab test shows what a vial holds.

Fetched Oct 16, 2026 from vendors' public listings; shipping and discounts excluded; $/mg uses the labeled amount. A transparency score marked * is based on fewer than six checks; checks we couldn't complete score 0. How we compare prices.

Is Thymulin legal? Status by market

A summary of official sources, checked Oct 16, 2026. Not legal advice.

United States: Not FDA-approved; FDA lists thymulin acetate in Category 3 (bulk drug substances nominated for compounding under section 503A without adequate support) [1][2].
United Kingdom: No UK-licensed medicine containing thymulin appears in the MHRA products database [3].
European Union: No medicine containing thymulin is authorized in the EU, according to EMA's central and Article 57 product data [4][5].
Canada: No product containing thymulin appears in Health Canada's Drug Product Database [6].
Australia: Thymulin is not named in Australia's Poisons Standard (October 2026) [7].
Sport (WADA): Not named on the 2026 Prohibited List; WADA's section S0 covers any pharmacological substance with no current approval for human therapeutic use that is not otherwise listed [8].