"What 👏 exactly 👏 are 👏 they?"
To fully answer that, a chemistry paper would need to be written here, however in the most basic terms, peptides are the building blocks that make up protein (they are basically small proteins). When peptides (or these “mini” proteins) link together, they become the basis for protein, which is needed by every cell in the human body.
Peptides are found in all living organisms and you need them to help your body grow and repair. There are many, many, many different types of peptides, some have the role of slowing down the ageing process, while some build muscle, some reduce inflammation, others destroy disease causing bacteria and there are even some that improve the body’s ability to heal! Different peptides have different jobs to do. For example, collagen peptides are for anti-aging and skin health, creatine peptides build muscle and enhance athletic performance, and antimicrobial peptides kill bacteria.
There are certain proteins needed by the skin, like collagen and elastin. Collagen gives skin its firmness while elastin keeps skin tight. Young skin has an abundance of collagen and elastin, while saggy wrinkly skin does not.
Here’s the plot twist:
Fully developed collagen PROTEINS are not easily absorbed into the skin, whilst collagen and elastin PEPTIDES (those “baby” proteins or the building blocks) are.
When applied to the skin, peptides act as little messengers, activating the skin cells to build collagen and elastin - and this results in the skin looking firmer.
For this reason, peptides are always in the running for first place in the field of anti-ageing skincare. Plus, it is never too late to begin an anti-aging routine. You CAN always reduce the signs of ageing.
However, there is no fountain of youth with just one single ingredient to fill out lips and eliminate under eye bags. A combined skincare approach with the addition of antioxidants and skin-repairing ingredients is far more effective with peptides.
Add that to your healthy anti-aging habits and you can fantastically improve your chances.
Like skincare, lash care is the same deal. The eyelashes are mostly made up of a protein called keratin. This is a fibrous protein which forms the main structural part of hair. The use of peptides on lashes and even hair can effectively lengthen, strengthen and nourish lashes. Our Simply Naked Beauty, 'Yes, They’re Mine' Long Lash Serum contains a combination of peptides for lash growth and lash repair. For more information on Simply Naked Beauty's serum ingredients, check out this ingredients article on the Simply Naked Beauty Blog, you can read it HERE! 
It’s truly amazing what peptides do. Once you get started looking into this area, you may even find yourself changing your lifestyle to increase your access to even more peptides from the foods you eat. That, however is a subject for another day.
Get the longest lashes of your life with Simply Naked Beauty's 'Yes, They're Mine' Long Lash Serum, HERE!