I cloned myself as a newborn to test therapies and grow organs

Well-supported — high-quality sources agree

What we can confirm

Authoritative coverage shows that Bryan Johnson did publicly claim on X that he had “cloned” himself as a newborn and described using this ‘baby Bryan’ to become his own blood donor, test therapies, grow organs for transplantation, and inject young cells, i.e., for biomaterial harvesting.[1][2][3][4] Multiple reputable outlets quote and paraphrase the same post and framing, and no source disputes that he made these claims; the disagreement is about the scientific accuracy of his description, not about whether he asserted it.[1][3][5]

Sources

Checked July 24, 2026