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Research use only. Prices updated nightly · vendor record checks dated one by one (most re-checked daily or weekly) · not independently verified · not medical advice.
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TB-500 (Thymosin Beta-4) price per mg

Synthetic peptide (thymosin beta-4 related)

Also known as: TB 500, TB500, Thymosin Beta-4, TB-4

A trade name for a synthetic peptide related to thymosin beta-4, a naturally occurring 43-amino-acid protein. The exact sequence sold under the name is not standardized across vendors.

TB-500 (Thymosin Beta-4) price per mg, as of 19 Oct 2026: the lowest listed price is $3.499/mg and the median cost is $7.00/mg, across 179 vendors (single-vial listings, ex-shipping, refreshed nightly). The lowest price is not a recommendation: check each store’s transparency profile. How $/mg is calculated · TB-500 (Thymosin Beta-4) guide.

FDA status (checked ): shown as a withdrawn nomination in FDA's Category 2 list — fda.gov

Price index: lowest (cost) $3.499/mg · median $7.00/mg · 179 vendors · as of 2026-10-19 (prices ex-shipping, refreshed nightly).

Cheapest listing: Evolve BioPep at $3.499/mg (10mg vial), $34.99, as of 2026-10-19. Listed price only, ex-shipping; inclusion is a statement about price data, never an endorsement.

Lowest price is not a recommendation — check the store’s transparency profile.

As of · single-vial listings, ex-shipping

TB-500 (Thymosin Beta-4) price and cost per vial, by vial size

Listed price per vial for TB-500 (Thymosin Beta-4), grouped by vial size (sizes with 3+ listings).
Vial sizeListingsLowest listedMedian listedMedian $/mg
2 mg4$20.00$22.49$11.247/mg
5 mg76$18.00$50.00$10.00/mg
10 mg151$34.99$64.99$6.499/mg
20 mg8$75.00$110.00$5.50/mg

Aggregates of publicly listed prices, not a recommendation. Per-store prices are in the vendor table above.

Last 90 days · daily median and lowest listed $/mg

TB-500 (Thymosin Beta-4) price history (90 days)

TB-500 (Thymosin Beta-4) median and lowest listed $/mg on the latest observed day and on the observed day nearest 7, 30, 60 and 90 days earlier (public 90-day window).
Point in timeDayMedian $/mgLowest listed $/mgLatest vs then
Latest$7.00/mg$3.499/mg—
7 days earlier$7.00/mg$3.499/mg0.0%
30 days earlier$8.00/mg$2.499/mg−12.5%
60 days earlier$8.40/mg$2.967/mg−16.7%
90 days earlier$7.50/mg$2.90/mg−6.7%

Days the crawl missed are left out, never filled in. Longer history is not published on this site. Aggregates of publicly listed prices, not a recommendation.

Dated answers from our own price data

TB-500 (Thymosin Beta-4) price and cost questions

What is the average price of TB-500 (Thymosin Beta-4) per mg?

As of 19 Oct 2026, the median listed price of TB-500 (Thymosin Beta-4) is $7.00/mg across 179 vendors. The lowest listed price is $3.499/mg. The middle half of comparable listings falls between $5.50/mg and $10.00/mg. We report the median rather than a mean because one mislabelled or bulk listing can distort an average. Prices are single-vial, ex-shipping and refreshed nightly.

How much does TB-500 (Thymosin Beta-4) cost per vial?

The most commonly listed vial size is 10 mg (151 listings), with a median listed price of $64.99 and a lowest listed price of $34.99 as of 19 Oct 2026. For 5 mg vials (76 listings) the median is $50.00 and the lowest is $18.00. Vial prices are not comparable across sizes; compare $/mg instead.

How many vendors sell TB-500 (Thymosin Beta-4)?

179 vendors list TB-500 (Thymosin Beta-4) at a comparable single-vial price as of 19 Oct 2026, in 244 listings in total. Inclusion is a statement about price data, never an endorsement, and each store has a public-record transparency profile.

What other names do stores list TB-500 (Thymosin Beta-4) under?

Store listings may use other names for TB-500 (Thymosin Beta-4), such as TB 500, Thymosin Beta-4 and TB-4. The TB-500 (Thymosin Beta-4) price comparison on this page covers the listings we match to TB-500 (Thymosin Beta-4) (lowest listed $3.499/mg as of 19 Oct 2026). Check each store's stated product and peptide content before comparing.

Has the price of TB-500 (Thymosin Beta-4) changed recently?

In our nightly price history, the daily median $/mg for TB-500 (Thymosin Beta-4) fell from $7.50/mg on 22 Jul 2026 to $7.00/mg on 19 Oct 2026 (−6.7%), based on 86 observed days within the public 90-day window.

What is the price history of TB-500 (Thymosin Beta-4)?

In our public 90-day window, the daily median listed price of TB-500 (Thymosin Beta-4) was $7.00/mg on 19 Oct 2026 and $7.50/mg on 22 Jul 2026 (−6.7% since then), with sampled readings between $7.00/mg and $8.40/mg. The dated table on this page lists each reading; days the crawl missed are left out.

How much does TB-500 (Thymosin Beta-4) cost?

As of 19 Oct 2026, TB-500 (Thymosin Beta-4) is listed from $3.499/mg to $40.00/mg, with a median of $7.00/mg. The middle half of comparable listings falls between $5.50/mg and $10.00/mg. For the most commonly listed vial size, 10 mg, the median listed cost is $64.99 per vial (lowest listed $34.99). These are listed prices for research material in US dollars, ex-shipping, refreshed nightly; they are not a recommendation to purchase.

Why do TB-500 (Thymosin Beta-4) prices differ between stores?

Listed TB-500 (Thymosin Beta-4) prices differ by store and by vial size: as of 19 Oct 2026 the highest comparable listing is $40.00/mg against $3.499/mg for the lowest, a ratio of 11.4 to 1. The median is $11.247/mg for 2 mg vials and $5.50/mg for 20 mg vials. Compare $/mg rather than price per vial, because vial sizes differ.

Do these TB-500 (Thymosin Beta-4) prices include shipping or sale prices?

No. Figures are regular listed product prices in US dollars, excluding shipping, and temporary sale prices are not shown. Volume-discount multipacks are kept out of the single-vial figures. See how $/mg works for the full rules.

Which TB-500 (Thymosin Beta-4) vial size is cheapest per mg?

As of 19 Oct 2026, 20 mg vials have the lowest median price per mg at $5.50/mg (8 listings), against $11.247/mg for 2 mg vials. Sizes with fewer than 3 listings, sizes sold by a single store and bulk sizes priced far below the median are left out; prices are single-vial, ex-shipping.

What is the cheapest TB-500 (Thymosin Beta-4) listing right now?

As of 19 Oct 2026, among vial sizes with enough listings to compare, the lowest listed TB-500 (Thymosin Beta-4) price is $3.499/mg (10 mg vials), and the lowest single-vial price is $18.00 for a 5 mg vial. These are listed prices, ex-shipping, not a recommendation to buy.

How does the TB-500 (Thymosin Beta-4) price compare with other peptides?

As of 19 Oct 2026, the median listed TB-500 (Thymosin Beta-4) price of $7.00/mg ranks 25th lowest of 44 tracked peptides by median $/mg. This compares listed prices only.