When it comes to supporting your hair, skin, and nails from the inside out, collagen and biotin show up a lot—and for good reason. But what do they actually do, and do you really need both? (Spoiler: yes, and here’s why.)
So, What’s Collagen?
Collagen is a protein your body makes naturally—and it’s kind of a big deal. It holds everything together: your skin, bones, muscles, tendons, even your hair follicles. But as you get older (yep, even in your 20s), your body starts making less of it.
Here’s What Collagen Does:
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Keeps your skin firm, smooth, and hydrated
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Supports stronger, healthier hair and nails
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Helps your skin stay elastic and bounce back
Basically, it’s like your body’s built-in support system—helping your skin stay lifted and your hair and nails stay strong.
What Is Biotin?
Biotin (vitamin B7) is a water-soluble B-vitamin that plays a key role in converting nutrients into energy. But it’s best known for its impact on hair, skin, and nail health—and it’s often the go-to recommendation for those dealing with thinning hair or brittle nails.
How Biotin Works:
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Boosts keratin production: Biotin enhances the infrastructure of keratin, the protein that forms the foundation of hair, skin, and nails.
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Supports cell growth: It helps create new cells that are essential for strong, healthy strands and smooth skin.
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Improves hair strength: A biotin deficiency can lead to hair thinning, so restoring optimal levels may help reduce shedding.
Biotin plays a key role in supporting healthy hair, skin, and nails—helping them grow stronger and look their best.
How They Work Together
Collagen and biotin each have their own role—but when you take them together, they can actually enhance each other’s benefits. Collagen builds the structure that supports healthy skin, hair, and nails from the inside, while biotin helps your body grow and maintain those outer layers.
When combined, they work synergistically to:
- Promote healthy hair growth and minimize breakage
- Strengthen nails by supporting growth from the root
- Enhance skin texture, firmness, and hydration
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Give your beauty routine a boost from the inside out
It provides your body with the essential nutrients needed to support the growth and long-term health of your hair, skin, and nails.
The Bottom Line
To support healthy hair, skin, and nails from within, both collagen and biotin play essential roles. Collagen helps maintain your skin’s structure and elasticity, while biotin supports the growth and strength of your hair and nails.
Whether through individual supplements or your daily meals, consistently getting both collagen and biotin can make a real difference.
