Bryan JohnsonFounder of Blueprint and Don't Die

Skincare Devices pt. 5: Measure skin on your body, not just your face

14 Mar 2024 · 1 min

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In this segment, Bryan Johnson introduces a skin‑measurement device that quantifies advanced glycation end products (AGEs), described as "junk" buildup in the skin. He explains how the device works—placing an arm on the sensor—and how the results are plotted with age on the x‑axis and the measured value on the y‑axis, with normal ranges defined by standard deviations. Johnson notes his initial readings were high (in the red) and emphasizes that these AGE measurements serve as indicators of overall skin health and cardiovascular health, reflecting factors such as UV damage, pigmentation, and pore size across the entire body, not just the face.

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This device, it measures advanced glycated end products. So basically, junk build up in the skin. You put your arm on this thing and it measures it. So adjacent to the face on skin, you look at the whole body. And so this particular reader, you can find age on the bottom on the x axis here, and the result is your Y axis. So, for example, if you're 20 years old, you'll be right here on the result for normal. One line below standard deviation is better than normal. The one is above. My first measurements were in the red, like I was really bad. And so this again, is looking at cardiovascular health for the skin. So whether you're looking at UV damage or brown or reds or pore size, we're looking at the skin health across the entire body.