TB-500
Human trials used a different form, for eyes and skin.
Grade C: Animals and lab only
Looks good in rats or in a dish. Not proven in people.
The grade is for the use people talk about, not for every use. Filed under: Repair.
How it works
A piece of a protein that helps cells move to an injury and rebuild.
How it was given in studies
The human trials used thymosin beta-4, the full-size molecule: on the skin for leg ulcers, and as eye drops for dry eye.
This is what the studies did. It is not a how-to. Source: Leg ulcer trial. Annals of the New York Academy of Sciences, 2010; Dry eye trial. Clinical Ophthalmology, 2015.
What studies saw
Animal injuries healed faster. Human trials used the full protein on eyes and skin wounds.
The trade-off
No human tendon trials. Banned in tested sport.
When it showed up, in studies
No human timeline for tendons or muscle.
Sources
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Keep going
We show what studies found. We never tell you what to take. Doses vary by study. Check the sources and talk to a doctor.