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Dr. Norton's Video: https://youtu.be/P9estnh8-Vs?si=ygc8upskcCoOPcA4
Dr. Stanfield's Video: https://youtu.be/U8uPzDdG77c?si=V-drWDFWlvaUJyfw
My Collagen for Joints Video: https://youtu.be/b31ZarEqpMc?si=OTxhgqbU-GpVFnw_
My Collagen on Skin Video: https://youtu.be/qABmjdy-Y84?si=QZvrfpzK3VzqIuXR

0:00 - Introduction
0:30 - Is Collagen a scam?
13:52 - Foreshadowing Critiques
15:29 - Main Points & Key Takeaways

References
[A] Myung SK, Park Y. Effects of Collagen Supplements on Skin Aging: A Systematic Review and Meta-Analysis of Randomized Controlled Trials. Am J Med. 2025;138(9):1264-1277. doi:10.1016/j.amjmed.2025.04.034

[B] Rohm F, Skurk T, Daniel H, Spanier B. Appearance of Di- and Tripeptides in Human Plasma after a Protein Meal Does Not Correlate with PEPT1 Substrate Selectivity. Mol Nutr Food Res. 2019;63(5):e1801094. doi:10.1002/mnfr.201801094

[C] Dierckx S, Patrizi M, Merino M, González S, Mullor JL, Nergiz-Unal R. Collagen peptides affect collagen synthesis and the expression of collagen, elastin, and versican genes in cultured human dermal fibroblasts. Front Med (Lausanne). 2024;11:1397517. Published 2024 May 1. doi:10.3389/fmed.2024.1397517

CRITIQUES, RULES, AND NOTES

Be aware of the following rules before posting comments:
- Please do not post summaries of the video in the comments - it damages retention on the video and YouTube is less likely to promote it (these videos cost me a lot of money to produce).

Critiques of my work are welcome! Please be aware of the following notes & rules before submitting critique:

Be mindful that this content is not all encompassing on the subject at hand and is self-limited for brevity to reach a wider audience. Also, be aware that I receive hundreds of YouTube comments per day, so the only way your critique can be considered is if you follow the steps outlined below. Finally, YouTube auto-deletes links, so I do not see most comments with links attached.

RULES:
If your comment is rude, you will be banned.
If your comment is not about the studies/topics at hand (i.e. extending to other outcomes not discussed) or offers critique with no scientific basis, it is unlikely to receive a response.

If you can follow these rules, I will try to address your critique and if there is merit, I will add an AMENDMENT to the content in question and pin it so everyone can see it (thank you!).

Please use the following link to submit your critique: https://bit.ly/PhysionicCritique

Disclaimer: None of the information provided by this brand is a replacement for your physician's advice. This brand is information for the sake of knowledge and the options of choice it provides, not in any way a personalized prescription. Please consult your physician before making any health related changes.