Protein is always hyped, especially in a Nutritionist’s book. Ever wondered why consuming protein is stressed so much? Because they are the powerhouse of nutrition and are embedded with the goodness of so many things.

An Amino acid chain is responsible for the regeneration of cells, aging, and crafting of the skin layers. Also known as the building block of the skin, Protein is an elixir widely known for overall human health. 

Image Credits: American Heart Association

Along with Protein being used for calorie deficit and ketos, it has a vital role in skin care and skin-related treatments. Did you know that the Peptides used in Skincare and Cosmetic products are all proteins?

These peptides are derivatives extracted from proteinaceous substances or made artificially.

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Most of the marketed Skincare products are made on one core principle: to boost collagen. Collagen is a protein that the body produces abundantly. (exceptions- If anyone has Eczema, severe skin disorders, or Collagen deficiency, collagen supplements are prescribed).

However, Collagen deficiency is rare. Because the peptides keep the skin reviving, maintain elasticity and reduce signs of aging, it is widely marketed as anti-aging creams and serums. 

What Are Peptides Derived From?

Peptides are derived naturally and synthetically. Natural peptides are derived from oats, yeast, and kernels. Research shows that naturally synthesized peptides are highly unstable in water.

Most of the time, proteinaceous products are water-based, and if a naturally derived substance is added, it can lead to adverse reactions on the skin.

Synthetic peptides are stable and affordable; hence, they are used in skincare products most of the time.

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What Role Do Peptides Play in Skin Rejuvenation?

Peptides are the foundation of the skincare routine and are regarded as the building blocks of regeneration.

They are proteins that smoothen and firm the skin by giving it a resilient texture and improving elasticity. Peptides are also known to lessen breakouts and acne to a greater extent.

Are Peptides and Retinol the Same?

The answer is no. Peptides and Retinol aren’t the same. Peptides are small chains of Amino acid, whereas Retinol is a heterogeneous compound that is a Vitamin.

Image Credits: Dr. Axe

It is a formulation of Vitamin A, which gives rise to Vitamin A1. Peptide and Retinol both offer an impactful combination of anti-aging and anti-inflammatory properties, which prevents almost every skin problem.

These two ingredients are found in serums, the most concentrated form of all. It is advised to first apply Retinol and then the peptide serum for effective results.

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What are Peptide Serums?

Peptides are also called “activated beauty” because they are an active ingredient in serums. Peptide serums contain Amino acid like collagen and elastin.

Can Peptide-protein Serums Be Used Daily?

Peptide serum usage depends on the frequency and skin type. Generally, serums are safe to use twice a day.

One can mix Peptides with Vitamin C and Retinol for extra benefits. Vitamin C locks moisture and prevents skin dehydration, whereas Retinol smoothens the skin.

Peptide for Hair

Just like collagen, keratin is the elixir of hair growth. Keratins are polypeptides that promote hair growth and regulate the density of hair. Experiencing hair fall can have several reasons like heredity, hormonal imbalance, and lack of protein in the diet. 

Keratin is responsible for hair growth; however, the lack of Keratin supply to the roots results in hair fall. On average, 50 to 100 hair strands are lost naturally during hair wash.

When this number exceeds or one can see a patchy head, it signifies hair fall.

How Do Peptides Help in Hair fall?

Recent studies show that copper peptide (GHK-Cu) helps improve hair growth and reduces inflammation. Excess hair loss occurs when blood flow increases towards the hair follicle.

Which Protein is Best for Hair Growth?

The egg is a first-class protein source with Biotin, B Vitamin, and proteins promoting hair, nails, and skin health.

Eggs have more antioxidants than pulses and other protein sources, which maintains hair health to the optimum level. 

Peptides are highly effective and absorb deep inside the hair because of their small size. They have two major powers- Moisturising hair and increasing hair thickness. 

Several peptides are used for the treatment of hair and to improve its texture and health. Some of the most effective peptides can be found below.

Types of Peptides Used for Haircare 

Biotinoyl tripeptide-1 

This is one of the best biomimetic peptides, also known as GHK. It is a form of Biotin that helps maintain lash, scalp, and hair health. There is proven clinical research on how wonderfully Biotinoyl works. GHK is a substantive peptide that shows localization at a target.

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It is a peptide that promotes hair growth by the function of cell signaling, affects the hair follicles and thus stimulates hair growth.

Oligopeptides work wonders for hormonal hair growth, especially post-pregnancy. After delivery, women often experience a large amount of hair fall because of hormones hopping up and down.

Due to their formulation, they penetrate deeper into the hair and lock moisture. This promotes increased hair density.

Acetyl tetrapeptide-3

This peptide is the building block of proteins and boosts collagen. It is secreted by the body and used to regenerate cells.

When Acetyl tetrapeptide is used, the hair follicles are surrounded by a strong cellular matrix and can heal inflammation or trauma due to follicle inflammation.

Copper Peptides

Copper peptides have the ability to penetrate deeper into the scalp to build collagen and elastin. However, more research is required in this field.

Do Peptides Cause Side Effects?

Peptides are highly unlikely to cause any side effects. Moreover, they will mostly not enter the bloodstream to cause any kind of harm.

Peptide Therapy

Peptides are densely nutritious and their therapy takes time to load and consumes 3-6 months. The benefits start increasing within a week, and visible differences in skin and hair health can be felt.

Since the early 1980s, peptide therapy has been approved by the FDA, and a total of 239 proteins are used for this treatment. In the market, more than 380 peptide products are available for pharmaceutical use.


Peptides are skinfood that we do not get in huge quantities through our diet. Moreover, they are proteins that keep the body nourished and skin healthy. Peptides should be consumed, used, and applied regularly.

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