Retatrutide vs Tirzepatide vs Semaglutide
Per mg by the single box, Tirzepatide is lowest at $0.287 (TR60), then Semaglutide at $0.301 (SM30) and Retatrutide at $0.428 (RT60). Strength for strength, at the 10, 20 and 30mg all three sell by the single box, Semaglutide is the same as Tirzepatide or lower and Retatrutide is highest: at 30mg $0.301, $0.308 and $0.447 per mg (SM30, TR30, RT30). Retatrutide comes in 10 strengths, Tirzepatide in 12 and Semaglutide in 7. On the shelf today: Retatrutide RT30, RT40 and RT60; Tirzepatide TR30, TR40 and TR60; Semaglutide SM5, SM20 and SM30. Running low: RT30, RT40, TR30, TR40, TR60, SM5 and SM20.
Prices revised · USD per box of ten · freight included from $1,000 of goods · COA per batch · research use only
What differs between Retatrutide, Tirzepatide and Semaglutide
Semaglutide is a 31-residue analogue of human GLP-1 (7-37) with a C18 fatty diacid on lysine 26; tirzepatide and retatrutide are 39-residue chains on a GIP-type backbone with a C20 fatty diacid, on lysine 20 in tirzepatide and on lysine 17 in retatrutide. Their sheets give Retatrutide C221H342N46O68, 4,731.4 g/mol; Tirzepatide C225H348N48O68, 4,813.5 g/mol; and Semaglutide C187H291N45O59, 4,113.6 g/mol. All three arrive as lyophilised powder in boxes of ten and are released to the same purity and net-content limits; which one a laboratory orders is set by its work, and this page compares only price, strengths, stock and the certificate.
Each compound by the box
Retatrutide
| Best per mg, one box | $0.428 per mg (RT60) |
|---|---|
| Best per mg, in 50-box lots | $0.419 per mg (RT100) |
| Price per box sold singly | $52.98 to $256.58 |
| Strengths offered | 10 (5-100mg) |
| On the shelf today | RT30, RT40 and RT60 |
| Average mass | 4,731.4 g/mol |
| CAS number | 2381089-83-2 |
Tirzepatide
| Best per mg, one box | $0.287 per mg (TR60) |
|---|---|
| Best per mg, in 50-box lots | $0.263 per mg (TR45) |
| Price per box sold singly | $38.44 to $172.44 |
| Strengths offered | 12 (5-120mg) |
| On the shelf today | TR30, TR40 and TR60 |
| Average mass | 4,813.5 g/mol |
| CAS number | 2023788-19-2 |
Semaglutide
| Best per mg, one box | $0.301 per mg (SM30) |
|---|---|
| Best per mg, in 50-box lots | $0.283 per mg (SM50) |
| Price per box sold singly | $24.93 to $90.38 |
| Strengths offered | 7 (5-50mg) |
| On the shelf today | SM5, SM20 and SM30 |
| Average mass | 4,113.6 g/mol |
| CAS number | 910463-68-2 |
Each line’s own page: Retatrutide, Tirzepatide and Semaglutide. Reading any of the certificates: how to read a peptide COA. Checking a batch: verify a batch number. Every line priced: the price list. Checking another supplier’s quote: the price per mg calculator.
Two at a time
Tirzepatide vs Retatrutide
At 60mg: $0.287 per mg against $0.428; 12 strengths and 10.
Semaglutide vs Tirzepatide
At 30mg: $0.301 per mg against $0.308; 7 strengths and 12.
Retatrutide vs Semaglutide
At 30mg: $0.447 per mg against $0.301; 10 strengths and 7.
Questions about Retatrutide, Tirzepatide and Semaglutide
What is the difference between Retatrutide, Tirzepatide and Semaglutide?
Semaglutide is a 31-residue analogue of human GLP-1 (7-37) with a C18 fatty diacid on lysine 26; tirzepatide and retatrutide are 39-residue chains on a GIP-type backbone with a C20 fatty diacid, on lysine 20 in tirzepatide and on lysine 17 in retatrutide. Their sheets give Retatrutide C221H342N46O68, 4,731.4 g/mol; Tirzepatide C225H348N48O68, 4,813.5 g/mol; and Semaglutide C187H291N45O59, 4,113.6 g/mol. All three arrive as lyophilised powder in boxes of ten and are released to the same purity and net-content limits; which one a laboratory orders is set by its work, and this page compares only price, strengths, stock and the certificate.
Which is cheapest per mg, Retatrutide, Tirzepatide or Semaglutide?
Per mg by the single box, Tirzepatide is lowest at $0.287 (TR60), then Semaglutide at $0.301 (SM30) and Retatrutide at $0.428 (RT60). Strength for strength, at the 10, 20 and 30mg all three sell by the single box, Semaglutide is the same as Tirzepatide or lower and Retatrutide is highest: at 30mg $0.301, $0.308 and $0.447 per mg (SM30, TR30, RT30). In 50-box lots the figure is lower: Retatrutide $0.419 (RT100), Tirzepatide $0.263 (TR45) and Semaglutide $0.283 (SM50). Prices are USD per box of ten, freight included from $1,000 of goods.
Which Retatrutide, Tirzepatide and Semaglutide strengths are on the shelf today?
On the shelf today: Retatrutide RT30, RT40 and RT60; Tirzepatide TR30, TR40 and TR60; Semaglutide SM5, SM20 and SM30. Running low: RT30, RT40, TR30, TR40, TR60, SM5 and SM20. Lines on the shelf leave in 1 to 2 business days after cleared payment; lines marked made to order leave in about two weeks, and lines marked special order are brought in on a 50-box minimum rather than held in stock.
What are GLP-3 RT, GLP-2 TZ and GLP-1 SG?
Trade nicknames some sellers use for retatrutide (LY3437943), tirzepatide (LY3298176) and semaglutide; GLP-2 itself is a different peptide, and the certificate for each line here names the compound.