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David Friedberg: Scientists just REVERSED skin age from 70 years to 31

July 18, 2026 / 01:43

This episode discusses the development of an enzyme that breaks down CML, a molecule linked to aging. Key topics include the enzyme's effectiveness on proteins like collagen and hemoglobin, and its application on human skin.

Scientists have created an enzyme that can degrade CML, achieving a reduction of 52 to 97% in various proteins. They tested this enzyme on human skin samples from elderly patients.

The results showed a 55% reduction of CML on the skin, effectively reversing the skin's age to that of a 31-year-old. This breakthrough demonstrates the potential for significant advancements in anti-aging treatments.

The discussion highlights the implications of this research, suggesting a potential trillion-dollar market for anti-aging products derived from this enzyme.

The episode features a lighthearted tone, especially when discussing the commercial possibilities of the enzyme, including the creation of a skin cream.

TLDR

Scientists developed an enzyme that reduces aging markers in skin, reversing its age significantly.

Episode

1:43
00:00:00
CML is kind of the predominant molecule that that gets formed in this extracellular matrix that's driving
00:00:06
aging and nothing breaks it down. So, these scientists set out to try and create an enzyme. An enzyme is a protein
00:00:11
that breaks something down that can break down CML. And so, these guys kind of went out and they took the target,
00:00:17
which is CML and tried to figure out, okay, how do we actually degrade CML, clear that extracellular matrix and
00:00:24
reverse aging. They started to test it on the proteins that we would find in our body, casein, collagen, retinal
00:00:32
proteins, which are in your eye, hemoglobin, and they were able to get rid of 52 to 97%
00:00:39
of the CML. Just degrade it away. And then they they found several sites where they were able to degrade over 90%
00:00:47
and then they took actual human skin from elderly patients that had donated their skin and they put this enzyme onto
00:00:56
that skin and they were able to eliminate 55% of the CML on the skin, basically reverse the skin's age down to
00:01:04
the age of a 31-year-old. This is from greater than 70-year-old patients just by putting this enzyme on the skin. And
00:01:10
so, it's kind of a groundbreaking demonstration of combination of AlphaFold, what's called directed
00:01:16
evolution, where you change the order of the DNA that changes the structure of the protein to test different proteins,
00:01:22
do high-throughput screening, and ultimately make a novel protein that doesn't exist in nature today that can
00:01:28
do something pretty profound for human health. >> It will be a trillion-dollar market.
00:01:33
>> [laughter] >> Yeah. You can create a cream >> if you could put this enzyme literally
00:01:36
on your skin and have it absorbed in >> cream. >> Yeah. >> Game over. >> Unbelievable.
00:01:40
>> That alone is $2 trillion.

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Episode Highlights

  • Reversing Aging with Enzymes
    Scientists develop an enzyme that can degrade CML, potentially reversing skin aging.
    “They were able to eliminate 55% of the CML on the skin.”
    @ 00m 58s
    July 18, 2026

Episode Quotes

  • Game over.
    David Friedberg: Scientists just REVERSED skin age from 70 years to 31
  • Unbelievable.
    David Friedberg: Scientists just REVERSED skin age from 70 years to 31

Key Moments

  • Skin Age Reversal01:04
  • Groundbreaking Discovery01:12
  • Trillion-Dollar Market01:30