D
Deleted member 25438
Iron
- Joined
- Jan 9, 2023
- Posts
- 92
- Reputation
- 73
As you may know, the collagen maxxing guide here is pretty popular. I thought it was interesting due to the fact that it proposed novel treatments + seemed to be empirically backed. The first thing that caught my eye was what was supposed to be the "main goal" of collagen maxxing, which is to increase the relative frequency of collagen 1.
"The main goal should be to find exogenous ways to stimulate type I collagen synthesis since it’s the most abundant collagen found in the skin, and it is the most significant one we lose as we age."
Many people seem to take this relation to be causal, that because your body produces less collagen 1 as you get older, it must be the reason for shittier skin. Some people take this even further, thinking that even controlling for age, people with shittier skin have less collagen 1. I will show that this is not true. The way you get to answer the question of whether lack of collagen 1 is genuinely the cause of shitty skin and not just incidental is by looking at collagen density cross-sectionally, ie: taking areas of the body that are sun-exposed (and thus have shittier skin) and comparing collagen 1 levels of those areas to areas that are not sun exposed. The study below does this, and the findings may surprise you.
https://www.sciencedirect.com/science/article/pii/S0022202X15414447
"Facial (sun-exposed) skin showed a tendency to maintain the expression of type I procollagen mRNA and intracellular protein (detected by PIC antibody) even after the 60s to over 80s Figure 3c. We also demonstrated that the number of fibroblasts expressing type I procollagen mRNA in facial 40- and 50-y-old skins was significantly higher than that of 20- and 30-y-old skins"
This means that the frequency of collagen 1 was the same for face 7 as it was for face 1, and it was higher for faces 3-4 as compared to faces 1-2. How is this possible if the lack of collagen 1 is causal for shitty skin? The decline of collagen 1 production as we age seems to be driven by areas that are not photoaged rather than areas that are.
In summary, it's unlikely that collagen 1 is the cause of your skin getting worse as you age, and its basically impossible that collagen 1 is the reason that any given person's skin is worse than the other if they are the same age. When @Cope told people to collagen 1 max, they might have actually been making their skin worse! I might go through the rest of the post to look at other proposed causes and solutions to shitty skin, but if its anything like this I assume other parts are also severely flawed and could mislead users.
"The main goal should be to find exogenous ways to stimulate type I collagen synthesis since it’s the most abundant collagen found in the skin, and it is the most significant one we lose as we age."
Many people seem to take this relation to be causal, that because your body produces less collagen 1 as you get older, it must be the reason for shittier skin. Some people take this even further, thinking that even controlling for age, people with shittier skin have less collagen 1. I will show that this is not true. The way you get to answer the question of whether lack of collagen 1 is genuinely the cause of shitty skin and not just incidental is by looking at collagen density cross-sectionally, ie: taking areas of the body that are sun-exposed (and thus have shittier skin) and comparing collagen 1 levels of those areas to areas that are not sun exposed. The study below does this, and the findings may surprise you.
https://www.sciencedirect.com/science/article/pii/S0022202X15414447
"Facial (sun-exposed) skin showed a tendency to maintain the expression of type I procollagen mRNA and intracellular protein (detected by PIC antibody) even after the 60s to over 80s Figure 3c. We also demonstrated that the number of fibroblasts expressing type I procollagen mRNA in facial 40- and 50-y-old skins was significantly higher than that of 20- and 30-y-old skins"

This means that the frequency of collagen 1 was the same for face 7 as it was for face 1, and it was higher for faces 3-4 as compared to faces 1-2. How is this possible if the lack of collagen 1 is causal for shitty skin? The decline of collagen 1 production as we age seems to be driven by areas that are not photoaged rather than areas that are.
In summary, it's unlikely that collagen 1 is the cause of your skin getting worse as you age, and its basically impossible that collagen 1 is the reason that any given person's skin is worse than the other if they are the same age. When @Cope told people to collagen 1 max, they might have actually been making their skin worse! I might go through the rest of the post to look at other proposed causes and solutions to shitty skin, but if its anything like this I assume other parts are also severely flawed and could mislead users.