Ipamorelin vs GHRP-2
Strength for strength, Ipamorelin costs less per mg at the two strengths both are offered in: at 5mg $0.764 per mg against $0.852 (IP5, G25 in 50-box lots), at 10mg $0.553 per mg against $0.727 (IP10, G210 in 50-box lots). By the single box, Ipamorelin is the only option, from $0.553 per mg at 10mg (IP10); every GHRP-2 line is special order. Ipamorelin is offered in 3 strengths (2mg to 10mg), GHRP-2 in 2 (5mg to 10mg). Neither is on the shelf today. The least either takes: one box of IP5 at $38.20, three for a first order’s $100 minimum, against 50 boxes of G25, $2,129.50 of goods.
Prices revised · USD per box of ten · freight included to US addresses from $1,000 of goods · COA per batch · research use only · New to us? What can be checked before you pay
What differs between Ipamorelin and GHRP-2
A pentapeptide against a hexapeptide that end alike, D-Phe-Lys-NH2, and share a D-2-naphthylalanine: ipamorelin is Aib-His-D-2-Nal-D-Phe-Lys-NH2 and GHRP-2, also called pralmorelin, D-Ala-D-2-Nal-Ala-Trp-D-Phe-Lys-NH2. The tryptophan is the chemical difference: GHRP-2 has one to oxidise, while ipamorelin has no methionine, tryptophan or cysteine to oxidise and no asparagine or glutamine to deamidate. On the mass line GHRP-2, C45H55N9O6, is 106.1 the heavier: 818.0 against 711.9 for ipamorelin, C38H49N9O5.
| Detail | Ipamorelin | GHRP-2 |
|---|---|---|
| Best per mg, by the box | $0.553 per mg (IP10) | Special order only |
| Best per mg, special order included | $0.553 per mg (IP10) | $0.727 per mg (G210, 50 boxes) |
| Price per box sold singly | $38.20 to $55.30 | Special order only |
| In 50-box lots, per box | $22.20 | $42.59 to $72.72 |
| Strengths offered | 3: 2mg, 5mg, 10mg | 2: 5mg, 10mg |
| Highest price per mg | $1.110 per mg (IP2, 50 boxes) | $0.852 per mg (G25, 50 boxes) |
| On the shelf today | 0 of 3 strengths | 0 of 2 strengths |
| Range | Growth & IGF | Growth & IGF |
| Also called | No other name | pralmorelin and KP-102 |
| Form | Lyophilised powder | Lyophilised powder |
| Molecular weight | 711.9 g/mol | 818.0 g/mol |
| Formula | C38 |
C45 |
| CAS number | 170851-70-4 | 158861-67-7 |
| Release limit | Purity ≥ 98.0 % by RP-HPLC | Purity ≥ 98.0 % by RP-HPLC |
Each line’s own page: Ipamorelin and GHRP-2. Reading either certificate: 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.
Strength for strength
Every strength both are offered in, per mg, the lower figure in bold; stock as this page was opened.
| Strength | Ipamorelin | GHRP-2 |
|---|---|---|
| 5mg | $0.764 per mg (lower) (IP5, made to order) | $0.852 per mg (G25, special order, 50 boxes) |
| 10mg | $0.553 per mg (lower) (IP10, made to order) | $0.727 per mg (G210, special order, 50 boxes) |
Every strength of both
Compared elsewhere
Ipamorelin vs Sermorelin
At 10mg: $0.553 per mg against $1.486 (Sermorelin, 50-box lots); 3 strengths against 2.
Ipamorelin vs Tesamorelin
At 10mg: $0.553 per mg against $2.258; 3 strengths against 4.
Hexarelin vs Ipamorelin
At 5mg: $1.454 per mg (Hexarelin, 50-box lots) against $0.764; 2 strengths against 3.
CJC-1295 vs Ipamorelin
At 10mg: $1.042 per mg against $0.553; 1 strength against 3.
Ipamorelin vs GHRP-6
At 10mg: $0.553 per mg against $0.783 (GHRP-6, 50-box lots); 3 strengths against 2.
CJC-1295 no DAC vs Ipamorelin
At 10mg: $1.747 per mg against $0.553; 3 strengths each.
Questions
What is the difference between Ipamorelin and GHRP-2?
A pentapeptide against a hexapeptide that end alike, D-Phe-Lys-NH2, and share a D-2-naphthylalanine: ipamorelin is Aib-His-D-2-Nal-D-Phe-Lys-NH2 and GHRP-2, also called pralmorelin, D-Ala-D-2-Nal-Ala-Trp-D-Phe-Lys-NH2. The tryptophan is the chemical difference: GHRP-2 has one to oxidise, while ipamorelin has no methionine, tryptophan or cysteine to oxidise and no asparagine or glutamine to deamidate.
Where does GHRP-2’s extra 106.1 come from?
From the residues the two chains do not share. Both carry D-2-naphthylalanine, D-phenylalanine and a C-terminal lysine amide; ipamorelin adds Aib and histidine, GHRP-2 a D-alanine, an alanine and a tryptophan. That leaves GHRP-2 heavier by C7H6O, C45H55N9O6 against C38H49N9O5, 818.0 against 711.9.
How many D-residues does each chain carry, and where?
Ipamorelin has two, the D-2-naphthylalanine in third place and the D-phenylalanine in fourth, with an Aib, not one of the coded amino acids, at the start of the chain. GHRP-2 has three: its first residue, D-alanine, its second, D-2-naphthylalanine, and its fifth, D-phenylalanine. So the naphthylalanine the two share is third in one chain and second in the other, and each puts its D-phenylalanine straight before the lysine amide that closes it.
Which is cheaper per mg, Ipamorelin or GHRP-2?
Strength for strength, Ipamorelin costs less per mg at the two strengths both are offered in: at 5mg $0.764 per mg against $0.852 (IP5, G25 in 50-box lots), at 10mg $0.553 per mg against $0.727 (IP10, G210 in 50-box lots).
What are the molecular weights of Ipamorelin and GHRP-2?
Ipamorelin’s calculated average mass is 711.9 g/mol and GHRP-2’s 818.0 g/mol, 106.1 apart; in electrospray the ions come at m/z 712.9 (1+) for Ipamorelin against 819.0 and 410.0 (1+ and 2+) for GHRP-2. On each certificate the measured mass is matched to the line’s calculated average mass, within about one unit, as how to read a peptide COA sets out.
Are Ipamorelin and GHRP-2 made to the same specification?
Yes: both are supplied to purity not less than 98.0 percent by RP-HPLC and net content within 5 percent of label, and each certificate reports those with a measured mass, matched to the calculated figure on each sheet. The retest date is on the batch record. What differs is each molecule’s own chemistry, described on its compound 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.