Tesamorelin - Generic Peptides

Buy Tesamorelin by Generic Peptides at XSteroids, offered in three strengths of 2 mg, 5 mg and 10 mg. This is a GHRH analogue, and one of the rare molecules in the family that carries a genuine licence: approval came for HIV associated lipodystrophy, and the studies behind it measured visceral fat rather than body weight. The brand offers lyophilized vials; the text below takes in the mechanism, the randomised evidence, the dilution sums and the reason an approved dose and a research vial are two different things.

What is listed here is laboratory material rather than the licensed medicine, and the text is written as information, not as medical advice.

What Tesamorelin Is and What You Are Buying

Tesamorelin is a synthetic analogue of growth hormone releasing hormone, developed by Theratechnologies and approved in 2010 for HIV associated lipodystrophy under the brand EGRIFTA, with the ATC code H01AC06. It stimulates the synthesis and release of the body's own growth hormone and raises IGF-1, while fat loss is driven mainly by lipolysis and a fall in triglycerides.

The approved label carries a sentence worth quoting: it is not indicated for weight loss management. Generic Peptides lists three research packs, each holding lyophilized powder at 2 mg, 5 mg or 10 mg.

Three packs carry the Generic Peptides label, each one a lyophilized cake of tesamorelin at 2 mg, 5 mg or 10 mg with a single vial inside and nothing besides. Because a dry cake is markedly more stable than a liquid, diluent, syringes and swabs have to be ordered on their own. Added water turns the cake into a clear solution. EGRIFTA, the licensed product, ships as a cartridge, and it has nothing to do with the format listed here.

Tesamorelin Mechanism and Pharmacokinetics

Mechanism and pharmacokinetics

By acting on the GHRH receptor, tesamorelin makes the pituitary release growth hormone in its natural pulsatile pattern instead of supplying hormone from outside. Subcutaneous bioavailability is low, at 4 percent or less, the peak concentration arrives about 9 minutes after the injection, and the elimination half-life is quoted at 8 minutes in the approved label and 26 to 38 minutes on Wikipedia. Either way the message is the same: this peptide is gone from the blood within minutes, and what it does is measured in the daily growth hormone and IGF-1 picture rather than in the hour after a dose.

What the human trials measured

Pooled randomised data reflect the same pattern. One meta-analysis of four trials and 909 patients reported a reduction in visceral fat of about 21.5 square centimetres, a waist reduction of 1.61 cm and a lean mass gain of 1.42 kg, with growth hormone related side effects and a tendency to more discontinuations. A second analysis found liver fat down and subcutaneous fat unchanged. Muscle gain in a meta-analysis of this size is a lean mass finding, not a claim about training.

How tesamorelin stands apart from the family

Tesamorelin is a stabilised GHRH analogue, and that is what separates it from sermorelin: the modification makes it far more resistant to breakdown, so it holds its effect longer than the natural 29 amino acid fragment. It still works through the GHRH receptor rather than the ghrelin receptor, so it is paired with a secretagogue such as ipamorelin rather than with another GHRH peptide, and its effect on visceral fat is a separate, well documented property of the molecule rather than a general growth hormone effect.

What to Expect With Tesamorelin

What the pooled trials measured

Tesamorelin is the best documented peptide on this page because it went through randomised trials. Pooled data from four trials and 909 patients reported a visceral fat reduction of about 21.5 square centimetres, a waist reduction of about 1.61 cm and a lean mass gain of about 1.42 kg, and a second analysis found liver fat down with subcutaneous fat unchanged [3]. The original 26 week study was published in 2007 and drove the approval [3].

What should not be expected

The approved label carries a sentence worth quoting: the product is not indicated for weight loss management [2]. The trials measured fat distribution around the organs, not body weight, and the muscle finding is a lean mass figure rather than a training claim. The trials were run in people with HIV associated lipodystrophy, so nothing in them proves how the molecule behaves in a healthy trained person, and the research vial is neither the approved presentation nor the approved dose.

Timeline and markers

The peptide itself clears quickly, with a half-life quoted at 8 minutes in the label [2] and 26 to 38 minutes on Wikipedia [1], and its effect shows up over weeks in visceral fat and IGF-1 rather than in the hour after a dose. Growth hormone related effects such as joint pain, swelling and injection site reactions are the ones the trials recorded most often, and they are the reason discontinuation rates were higher on active treatment.

Tesamorelin Doses and Reconstitution

Mixing Each Tesamorelin Vial

Pick the volume per vial and the strength follows from the fill. One millilitre of bacteriostatic water in the 2 mg pack brings it to 2 mg per ml, which puts 200 mcg in every 0.1 ml. Two millilitres in the 5 mg pack lands at 2.5 mg per ml, so each 0.1 ml carries 250 mcg, and 2.5 ml in the 10 mg pack gives 4 mg per ml, or 400 mcg per 0.1 ml. On a U-100 insulin syringe every one of those 0.1 ml volumes reads as 10 units. Rotate the vial gently and keep the mixed solution cold.

Approved amounts versus research vials

The approved product used 1.4 mg once daily for the 2 mg presentation, 2 mg once daily for the 1 mg presentation and 1.28 mg once daily from an 11.6 mg cartridge, where one cartridge lasted seven days. A single 2 mg, 5 mg or 10 mg research vial covers only a few days at those amounts, which is exactly why the vial is a laboratory format rather than a pharmacy one. At 1 mg a day the 10 mg vial lasts about 10 days; at 250 mcg a day it lasts about 40 days.

Stacking Tesamorelin in a Research Plan

Tesamorelin already occupies the GHRH side of the axis, so the usual partner is a secretagogue working through the ghrelin receptor, such as Ipamorelin 5 mg. Sermorelin is the shorter GHRH fragment that does a similar job for a shorter window, while CJC-1295 DAC and CJC-1295 without DAC cover the long and short ends of the same receptor family. For fat loss research that does not touch the axis at all, AOD 9604 and the fragment HGH Frag 176-191 are the neighbouring options.

Recovery Notes for a Tesamorelin Block

Tesamorelin works through the pituitary rather than replacing hormone, so it does not suppress the androgen axis and no post-cycle therapy is needed for the peptide itself. The relevant recovery question is the axis: repeated stimulation raises IGF-1, which regulators flagged for monitoring, so a break between blocks is the ordinary approach. Where a peptide block runs next to an androgen cycle, recovery on the anabolic side is a separate matter, and no such product is sold here.

Tesamorelin Side Effect Profile

Effects seen in the trials

Above the 5 percent mark the approved trials recorded joint pain, myalgia, limb pain and peripheral oedema, plus redness and itching where the injection went in; headache and diarrhoea also appear in the tables. Fluid retention, carpal tunnel symptoms, impaired glucose tolerance and a rise in IGF-1 are part of the label warnings.

Contraindications and handling

The licence lists disorders of the hypothalamic pituitary axis, active malignancy, pregnancy and hypersensitivity as contraindications. For this research vial the practical points are storage out of children's reach and a flat refusal to use any solution that has gone cloudy; the page is not medical advice.

Cold Storage for Tesamorelin

The approved label keeps the powder at room temperature in its original carton, protected from light, and says not to freeze it. In a research setting the safer habit is 2 to 8 C away from light for the lyophilized vial, and the freezer only for untouched long term storage. Once mixed, hold the solution between 2 and 8 C and finish it inside 28 to 30 days, while the licensed cartridge is thrown away seven days after mixing. A reconstituted vial never returns to the freezer.

Why Buy Tesamorelin Vials from XSteroids?

An order placed at XSteroids comes straight out of the Generic Peptides catalog, with a protected payment step and tracked dispatch. US addresses are reached in 3 to 6 days, addresses abroad in 12 to 26 days. Every strength is listed above, and the block below gathers the secretagogues, the GHRH partners and the fat loss peptides that turn up next to this one in a research plan.