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Beauty Bytes with Dr. Kay: Secrets of a Plastic Surgeon™

801: The Benefits of Incorporating Peptides into Your Skincare Routine

Beauty Bytes with Dr. Kay: Secrets of a Plastic Surgeon™

Kay Durairaj, MD, FACS @beautybydrkay

Business, Arts, Fashion & Beauty, Health & Fitness, Management & Marketing, Medicine

4.9608 Ratings

🗓️ 31 January 2026

⏱️ 7 minutes

🧾️ Download transcript

Summary

This Five Minute Friday episode is all about peptides. A peptide is a compound composed of amino acids, and in skincare it helps reinforce proteins that naturally occur in the skin, rejuvenating and maintaining it. You need to incorporate this amazing ingredient into your skincare routines. Peptides improve your skin’s firmness, elasticity, and dissipates redness. Peptides can also be used to smooth wrinkles and repair barrier function. You can consume peptides both topically and orally. Some foods that are rich in peptides include milk products, eggs, soybeans, fish and meat. 

Transcript

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0:00.0

Well, hello, hello, guys. You're listening to Beauty Bites with Dr. K, Secrets of a Plastic Surgeon.

0:18.8

And today on the podcast, it's time for a five-minute

0:21.9

Friday, and I'm going to teach you all about peptides and what they can do for your skin.

0:28.1

So if you've never used peptides on your skin, you need to incorporate this amazing ingredient

0:34.3

into your skincare routine. You can use peptides both orally by mouth or topically.

0:40.8

And I'm going to talk first about what we can do to help use peptides to reduce skin problems.

0:47.0

So we've studied peptides for many years. They're very thin. They're very small molecules that

0:52.3

penetrate the surface of the skin easily. They improve

0:55.6

redness at the skin because they often have antioxidant effect. They improve skin firmness, skin

1:01.8

elasticity, and they also have anti-inflammatory effect. There are different classes of peptides.

1:08.6

And a peptide is just a very small, small molecule, sometimes composed of

1:12.3

just several amino acids bound together by a peptide chain. And because of its small size, it's able

1:18.4

to permeate the skin tissues very nicely. And it's often in a thin, water-based type solution. So it

1:25.2

absorbs highly effectively. So there are four different type of

1:30.0

peptide molecules. There are carrier peptides, neurotransmitter inhibitor type of peptides,

1:36.6

enzyme inhibitors that stop breakdown of products and signaling peptides. So it sounds very

1:43.1

technical and very high concept, but the basic concept is

1:47.6

carrier peptides help to stabilize trace elements that are really important in your skin,

1:53.2

like magnesium and copper. And these are things that we need in our skin to grow good elasticity,

1:58.7

good collagen development, good wound healing. Copper peptides and copper

2:03.1

tripeptides are very important in anti-aging skin care, and you will find them there often because

2:08.5

of their wound healing abilities. Neur retransmitter inhibitor peptides are the type of peptide products,

...

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