What's worth trying—and why

Peptides, biomarkers, and real experiments. The studies, numbers, and firsthand results behind your next health decision.

Oxytocin: The Two Studies Behind Conflicting Trust Headlines

Oct 12, 2026

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5 min read

Oxytocin: The Two Studies Behind Conflicting Trust Headlines

One 2026 study found no increase in a money-transfer game. Another found a 15% increase in men selected for low trust. The experiment behind each headline explains the gap.

Insulin: The 14-Year-Old Who Changed Diabetes Treatment

Oct 9, 2026

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6 min read

Insulin: The 14-Year-Old Who Changed Diabetes Treatment

Leonard Thompson weighed 65 pounds. The first pancreatic extract brought little benefit. Twelve days later, a better preparation changed his course.

Selank: An Anxiety Peptide Put to a Stress Test

Oct 7, 2026

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6 min read

Selank: An Anxiety Peptide Put to a Stress Test

A seven-amino-acid peptide changed how rats behaved after two weeks of stress. The most striking result depended on a second drug.

Semax: What a Seven-Amino-Acid Peptide Changed in an Injured Brain

Oct 5, 2026

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3 min read

Semax: What a Seven-Amino-Acid Peptide Changed in an Injured Brain

After a stroke-like injury in rats, Semax changed the activity of 394 genes. A second experiment followed the result into proteins involved in cell stress and survival.

Oct 2, 2026

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6 min read

MOTS-c: Old Mice Ran Twice as Long

In a 2021 study, two weeks of MOTS-c treatment doubled running time in old mice. The researchers also found that exercise raises this peptide in people. Its genetic instructions sit inside mitochondria.

What's worth trying—and why

Oxytocin: The Two Studies Behind Conflicting Trust Headlines

Insulin: The 14-Year-Old Who Changed Diabetes Treatment

Selank: An Anxiety Peptide Put to a Stress Test

Semax: What a Seven-Amino-Acid Peptide Changed in an Injured Brain

MOTS-c: Old Mice Ran Twice as Long

First Dose