The Peptide Column

The Peptide Column

Peptide 101: MK-677 (Ibutamoren)

Oct 19, 2026

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6 min read

Peptide 101: MK-677 (Ibutamoren)

What MK-677 is, how it works, and what the evidence shows — plus the news worth your time.

Peptide 101: Mazdutide

Oct 12, 2026

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4 min read

Peptide 101: Mazdutide

What Mazdutide is, how it works, and what the evidence shows — plus the news worth your time.

Peptide 101: Melatonin (N-acetyl-5-methoxytryptamine)

Oct 6, 2026

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10 min read

Peptide 101: Melatonin (N-acetyl-5-methoxytryptamine)

Melatonin's effect on falling asleep is real but small. Its effect on when your body thinks night is, and what the higher doses in the antioxidant and oncology literature are actually based on, is the more interesting story.

Peptide 101: GHK-Cu (Copper Peptide)

Sep 28, 2026

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4 min read

Peptide 101: GHK-Cu (Copper Peptide)

What GHK-Cu is, how it works, and what the evidence shows — plus the news worth your time.

Peptide 101: Glutathione

Sep 22, 2026

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4 min read

Peptide 101: Glutathione

The most hyped drip on the IV bar menu — and the gap between what glutathione does in your cells and what taking it does for you.

Peptide 101: Oxytocin

Sep 17, 2026

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4 min read

Peptide 101: Oxytocin

A hospital drug since the 1960s and a wellness product since about 2015 — and the evidence behind those two oxytocins is not remotely the same.

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