Thymosin Alpha-1 vs TB-500 (thymosin beta-4 acetate)
TB-500 (thymosin beta-4 acetate) is cheaper per mg here: $0.540 per mg at its best-priced strength (TB10) against $2.05 per mg for Thymosin Alpha-1 (TA10), 74 percent less. Thymosin Alpha-1 is offered in 3 strengths (2mg to 10mg), TB-500 (thymosin beta-4 acetate) in 3 (2mg to 10mg); 2 and 2 of those are on the shelf today.
Prices and stock checked · USD per box of ten · freight included from $1,000.00 an order · COA per batch · research use only
Both are acetylated synthetic peptides named for the thymus, and there the resemblance ends: thymosin alpha-1 is 28 residues, strongly acidic, with no methionine or tryptophan, so it is unusually stable; TB-500 is the 43-residue thymosin beta-4 sequence with a methionine whose sulfoxide is the first impurity to grow. Masses 3108.3 and 4963.5; strengths and prices below.
| Thymosin Alpha-1 | TB-500 (thymosin beta-4 acetate) | |
|---|---|---|
| Range | Longevity & Nootropic | Repair & Recovery |
| Strengths offered | 3: 2mg, 5mg, 10mg | 3: 2mg, 5mg, 10mg |
| Price per box of ten | $50.90 to $204.64 | $20.78 to $54.02 |
| Best price per mg | $2.05 per mg (TA10) | $0.540 per mg (TB10) |
| Dearest price per mg | $2.54 per mg (TA2) | $1.04 per mg (TB2) |
| On the shelf today | 2 of 3 strengths | 2 of 3 strengths |
| Form | Lyophilised powder | Lyophilised powder |
| Average mass | 3108.3 | 4963.5 |
| CAS number | 62304-98-7 | 77591-33-4 |
| Release limit | Purity ≥ 98.0 % by RP-HPLC | Purity ≥ 98.0 % by RP-HPLC |
Every strength of both
| Code | Compound | Strength | Per box | Per unit | Stock |
|---|---|---|---|---|---|
| TA2 | Thymosin Alpha-1 | 2mg x 10 vials | $50.90 | $2.54 per mg | Made to order, 2 weeks |
| TA5 | Thymosin Alpha-1 | 5mg x 10 vials | $108.04 | $2.16 per mg | In stock |
| TA10 | Thymosin Alpha-1 | 10mg x 10 vials | $204.64 | $2.05 per mg | In stock |
| TB2 | TB-500 (thymosin beta-4 acetate) | 2mg x 10 vials | $20.78 | $1.04 per mg | Made to order, 2 weeks |
| TB5 | TB-500 (thymosin beta-4 acetate) | 5mg x 10 vials | $33.24 | $0.665 per mg | In stock |
| TB10 | TB-500 (thymosin beta-4 acetate) | 10mg x 10 vials | $54.02 | $0.540 per mg | In stock |
Questions
Which is cheaper per mg, Thymosin Alpha-1 or TB-500 (thymosin beta-4 acetate)?
TB-500 (thymosin beta-4 acetate), at $0.540 per mg for its best-priced strength (TB10) against $2.05 per mg for Thymosin Alpha-1 (TA10), 74 percent less. Compare at the vial size you will actually use; the gap changes with strength.
Which comes in more strengths?
Both are offered in 3 strengths. Every strength is a separate line with its own code, price and stock state.
Can Thymosin Alpha-1 and TB-500 (thymosin beta-4 acetate) go in one order?
Yes. Any lines can share an order; the minimum is $300 of goods per order, or $100 on a first order, and one sealed box of ten per line. Lines on the shelf ship in 1 to 2 business days; made-to-order lines follow in about two weeks, at no extra freight.
Are they tested to the same specification?
Yes: purity not less than 98.0 percent by RP-HPLC, identity by mass, water content, net content within 5 percent of label, and a retest date, with a certificate of analysis per batch. What differs is what each certificate has to look for, which is set by the molecule and described on each compound’s own page.
Structural facts from each compound’s sheet and profile; prices and stock from the list at the moment this page was opened. How to compare strengths on price.