Amino acids are the building blocks of proteins, and hair is made out of protein. But does this mean amino acids are good for hair growth?
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Amino acids are naturally found in the form of keratin, which is the type of protein your hair is made from.
Without amino acids, the body simply wouldn’t be able to produce new hair.
According to a 2007 study published in the Journal of Cosmetic Science, unlike skin, the role and presence of amino acids in hair shafts aren’t well understood yet.
Thankfully, we do have some research available to look at.
Cysteine is an amino acid that occurs in keratin, the protein in your hair.
These amino acids also help to protect hair from oxidative stress.
Some minor studies have shown cysteine can have positive results for hair growth.
In one study, participants were given 4 pills with cysteine for 50 weeks and experienced a 50% increase in hair growth.
In another study, 40 women were given a supplement with cysteine over 6 months and experienced statistically significant changes in hair growth compared to placebo.
However, in the latter study, the supplements given to participants had other ingredients.
This means it’s difficult to conclude whether it was cysteine itself that helped.
Lysine is another important amino acid that helps produce collagen in hair roots.
Some research has shown that in combination with iron supplementation, women with pattern hair loss may experience less shedding with lysine supplementation.
However, hair loss is known to be associated with an iron deficiency.
Once again, this means that it’s hard to conclude whether it was lysine alone responsible for hair growth
Non-invasive treatments like laser therapy can typically be used in conjunction with natural supplementation like amino acids or also as an effective stand alone treatment.
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There are also topical applications containing amino acids.
Topical applications are used because proteins in hair can become depleted with sunlight exposure and with repeated hair coloring.
A 2005 study published in the American Academy of Dermatology concluded that 6 different amino acids can be lost with hair ‘weathering’.
Researchers found that amino acids could potentially strengthen hair via a topical application.
The bottom line is that amino acids are important for hair health.
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*Disclaimer: This video is not intended to diagnose, advise, treat and / or replace any medical care. The information we provide is for general informational use and entertainment purposes only. Be sure to talk to a healthcare professional before making any medical, health or lifestyle changes and obtain a medical exam, diagnosis & recommendation. 10589578 Canada Inc, RedRestore and RedRestore.com are not responsible or liable for any diagnosis, treatment, advice or general information, services or product that you obtain through this video or website. Individual results may vary. All rights reserved.
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