Peptides: What are They and How do They Work?


When it comes to skincare, we would all love to find the magic bullet; that one product that can do it all. But does such a product exist? Realistically, no. But – if there is one ingredient that should be a part of your daily skincare routine no matter what, it’s peptides. 

What are peptides?

Polypeptides, or peptides for short, are strings of amino acids that contain proteins needed by the skin. Each string contains between 2 and 50 different amino acids. These are the building blocks of collagen, and adding them into your skincare routine can have a multitude of benefits, including stimulating your skin to produce more collagen on its own.

Why collagen matters

Collagen is the protein that provides the structure for bones, skin, tendons, and ligaments. When it comes to the skin, collagen gives us that firmer, younger-looking appearance. As we age, our bodies produce less, lower quality collagen. Adding peptides into your routine can help replace some of what we lose naturally. 

How peptides work

When applied topically to the skin in a moisturizer or serum, peptides act as messengers. They trigger skin cells to perform specific functions such as building collagen and elastin. Peptides also send signals when your body needs to heal, telling the body not only to produce more collagen but directing it to where you need it the most.

Research shows that peptides can support your skin on multiple levels including firming, smoothing, and brightening. 

The benefits of peptides

  1. Improved skin barrier – Your skin is your first line of defense against harmful UV rays, pollution, and toxins. Peptides help build up this barrier.
  1. Reduced wrinkles – Collagen helps to plump up the skin, and when your skin is thicker wrinkles are less visible.
  1. Less inflammation – Peptides ease inflammation, repair damage to the skin, and help to even out tone.
  1. Fewer breakouts – Some peptides have antimicrobial properties and can better control the bacteria that causes acne. However, sometimes in severe acne cases peptides are not recommended
  1. Added hydration – When peptides help boost collagen production, it also boosts hydration.

Choosing a product

Because peptides don’t work alone, you’ll want to use a product that contains some of the other necessary skincare ingredients for your particular skin type. Look for one that has prolonged contact with your skin, like a moisturizer or serum versus a cleanser. We like U.SK Under Skin Precious Elixir which is included in The Box by Dr Ava: Skincare Heroes Limited Edition. 

The U.SK Under Skin Precious Elixir stands out for several reasons, but to start, any product that contains infusions of gold, diamond, pearl, and caviar must be extraordinary, right? 

These ingredients each bring different benefits. The gold infusion revitalizes and uniforms the texture of the skin tissue, leaving your skin looking bright and fresh. 

The diamond infusion promotes cell renovation and restores necessary skin hydration, which gives you extra protection against the elements. 

The high volume of protein and vitamins provided by the pearl and caviar promotes cell renovation, which will reduce the gradual appearance of wrinkles and give your skin a more uniform texture. 

Precious Elixir infusions are proven to promote cell rejuvenation and calm inflammation while leaving your skin vibrant and gleaming

How to use

Peptides are generally safe for all skin types and can be used during both your daytime and nighttime skincare routines. 

Pro-Tip: A facial peel will help the peptides penetrate deeper into your skin. 

Don’t use peptides at the same time as AHA (Alpha Hydroxy Acid). These two beauty powerhouse ingredients don’t get along and can cancel each other out


Peptides are not a magic bullet for your skin, because magic bullets don’t exist. But used in conjunction with your other beauty products like the U.SK Under Skin Precious Elixir, peptides can pack a big punch in fighting the signs of aging and treating stressed skin. 


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