If you’re investing in retinoids, lasers, microneedling, and all the latest collagen-boosting skincare, there’s one crucial piece of the puzzle you might be overlooking. According to board-certified plastic surgeon Dr. Amir Karam, glowing, firm skin doesn’t start with what you put on your face—it starts with what you put in your body.
In a recent Instagram Reel, Dr. Karam broke down why protein is the unsung hero of youthful skin and why collagen production simply can’t happen without it.
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Why Protein Matters for Skin Aging
“Skin and tissue require amino acids, which are the building blocks of protein,” Dr. Karam explains. Those amino acids are essential for creating collagen and elastin—the foundational proteins that keep skin firm, elastic, and resilient.
Your body needs a specific balance of amino acids to fuel collagen synthesis. When protein intake is too low, the body prioritizes vital organs and systems first, meaning aging skin often gets pushed to the back of the line.
Translation: even the best skincare routine can fall flat if your body doesn’t have the raw materials it needs.
Why Collagen Treatments Won’t Work Without It
Dr. Karam points out that many people are aggressively stimulating collagen through treatments like retinoids, lasers, and microneedling—but forget to support the process internally.
If you’re telling your skin to produce more collagen but aren’t supplying enough protein, you’re essentially asking your body to build something without the proper tools.
“You want to have plenty of amino acids and protein to go around so that you can build the collagen molecules that you’re trying to stimulate,” he says.
The Bottom Line
Collagen isn’t just a skincare issue—it’s a nutrition issue. Without adequate protein, your body can’t effectively rebuild or maintain youthful skin, no matter how advanced your treatments are. If firm, glowing skin is the goal, think of protein as the foundation.
Skincare may spark collagen production, but protein is what allows your body to actually build it.
