Study amounts, not a dose plan
Sermorelin dosage: who received each study amount
You can see what researchers gave each group without treating it as a plan for yourself.
What the Sermorelin study amounts can tell you
Doctors first studied Sermorelin to see whether a child's growth gland could raise a low hormone supply while other hormones still pressed the gland's brake when enough was present. That narrow check can't set your dose.
In one child study, each day's amount was 30 micrograms per kilogram of body weight. Micrograms are tiny units; a million make one gram.
Staff gave the skin shot near bedtime. An aging study gave older men 0.5 milligrams or 1 milligram twice daily for 14 days.
Milligrams are larger units; a thousand make one gram. A vein study used 0.25 to 2 micrograms per kilogram in healthy men.
The units and delivery methods differ, so these aren't fair side-by-side amounts. Each one answered a narrow study question and can't set your dose.
What question each Sermorelin amount tested
In the child growth study, the daily bedtime skin shot held 30 micrograms per kilogram [2]. That amount belonged to children who lacked enough growth hormone.
For 14 days, older men received 0.5 milligrams or 1 milligram twice daily under the skin. At the higher amount, growth hormone rose, and growth factor 1 rose with it [3].
Healthy men in a blood-timing study got a vein dose of 0.25-2 micrograms for each kilogram. Growth-hormone release peaked at 1-2 micrograms per kilogram [5].
Doctors also used one quick vein dose, often about 1 microgram per kilogram, to check the gland's answer [5]. That was a one-time test, not long-term care.
Each figure belongs with its study group, the way the drug was given, and the question asked. None of these amounts tells you what dose to take.
What skin, vein, and nose methods changed
The child-growth and older-men studies used skin shots [2][3]. Vein doses were used to test the gland and time the drug in blood [5].
Only about 3-5% of a nose-spray dose reached the blood. In one child study, that share fell and antibodies formed [14].
Antibodies are immune proteins that attached to the drug in those children. Growth speed didn't rise over 6 months.
A vein dose enters the blood at once, while a skin shot must soak in. The studies here don't give one percentage for how much of a skin shot reached blood.
That difference can change the blood result from the same written amount. How long Sermorelin stays in blood explains why the method matters.
Sermorelin clears within minutes, so some studies gave it often or near bedtime [5]. That timing belonged to the study and doesn't direct your use [8].
What doctors learned from a one-time vein test
Doctors used Sermorelin to treat some children and to test whether a growth gland worked. For the test, about 1 microgram per kilogram often went straight into a vein [5].
The blood-timing study saw a response at only 0.25 micrograms per kilogram. The response peaked at 1-2 micrograms per kilogram by vein [5].
One quick dose showed whether the gland could release growth hormone. It didn't show what long-term use would do [5].
The child study showed faster growth, while the older-men study showed short blood changes. The vein test only showed that the gland could answer, and none proved a lasting anti-aging benefit [6].
What happened to each study group
Researchers in the child study gave 30 micrograms per kilogram on each day. In the first year, growth moved from about 4.1 to roughly 7-8 centimeters per year [2].
The older-men study used 0.5 milligrams or 1 milligram twice daily for 14 days. Growth hormone reached young-adult levels at the high amount, and growth factor 1 did too [3].
The 0.25-2 micrograms per kilogram went straight into a vein to time growth-hormone release [5]. Researchers didn't use those amounts as long-term treatment.
A child's growth amount can't serve as your adult plan. A one-time vein test isn't an amount for upkeep either.
You can compare problems on the Sermorelin side effects page. Keep each result tied to the people who produced it.
Why workers kept Sermorelin powder dry and cold
Sermorelin acetate came as powder with its water removed because the mixed drug can break down. Study staff added germ-free liquid, then kept the mixed vial cold [10].
That is why the drug didn't arrive as a ready liquid [10]. US pharmacy rule 797 tells workers how to prepare it without letting germs in [10].
Those facts explain what study staff did with the vial. They aren't directions for you to mix or use it.
Time in blood, amount given, and the way the drug entered the body can change a result. The older-adult growth factor 1 research found short blood-test changes but little long-term proof [6].