Bryan Johnson· Author
I tried a peptide called CJC-1295. It pushed my growth hormone up by ~8x. That’s good. That’s what it was supposed to do. But, it also came with adverse effects:
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The headline is broadly defensible, but the qualifications matter. Effect sizes vary by population, the strongest claims rest on shorter trials, and credible voices push back on how it's typically framed.
I tried a peptide called CJC-1295. It pushed my growth hormone up by ~8x. That’s good. That’s what it was supposed to do. But, it also came with adverse effects:
Every Sunday: the week’s new conflicts and verdict changes — and nothing else.
Native comments, Twitter mentions, and Reddit threads about this claim — surfaced together so the conversation isn't fragmented across platforms.
Bookmarking — the dossier-vs-overview split is the right call. Most of the time I want overview; sometimes I want receipts.
Would love a "what would change this verdict" RSS feed. Sign me up if it exists.
> increased my morning fasted blood sugar up 20% > increased stress hormone by 12% > tanked my REM sleep by 23% > made my pancreas work 53% harder and was still losing to rising blood glucose > increased my insulin resistance by 50%
I tried a peptide called CJC-1295. It pushed my growth hormone up by ~8x.