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Amino Acid Hair Products Are The Secret To Healthy, Gorgeous Strands

Amino acids are an essential building block to healthy hair. Read on to find out what amino acids do for your hair and how to incorporate them into your routine.

Small but mighty, amino acids are molecules that link together to form proteins. They play a key role in our overall health from the inside out. When used topically via amino acid hair treatments, they can even help our strands become notably stronger by reinforcing weak hair and helping to rebuild the fiber from the inside out. 

Keep reading to learn more about why amino acids for hair are so important and whether you can use amino acids for hair growth. We’re also giving you a sneak peak of the  Kérastase range that utilizes amino acids in hair products that will soon be available on 

What Do Amino Acids Do For Your Hair?

So what kind of benefits are we talking about when using amino acids for hair? As mentioned, these tiny protein building blocks make for stronger strands. This translates to hair that’s visibly shinier, smoother to the touch, less frizzy-looking, and more resistant to breakage caused by things like the elements, styling, brushing, and chemical processing. 

Basically, by incorporating amino acids hair treatments into your hair care routine, you’ll reap the rewards of Insta-worthy hair that looks and feels healthy. Lucky for you, Kérastase just debuted their Chroma collection. The following products from the line utilize amino acids to help your hair live its best life:


Bain Chroma Respect Sulfate-Free Shampoo

Sulfate-free shampoo with centella asiatica for shiny hair. Ideal for fine to medium, damaged, color-treated hair.

One size only for Bain Chroma Respect Sulfate-Free Shampoo
8.5 fl oz

Bain Chroma Respect Shampoo

This sulfate-free shampoo is ideal for fine to medium hair types that have been color-treated. It helps hydrate, protect color, and delivers a high-shine finish. In addition to the amino acids, the formula also contains Centella Asiatica (aka, cica), which is known for its soothing and recovery properties. 


Fondant Cica Chroma Conditioner

A strengthening conditioner with lactic acid for color-treated hair.

One size only for Fondant Cica Chroma Conditioner
6.8 fl oz

Fondant Cica Chroma Conditioner

Amino acids and Centella Asiata also team up in this nourishing, hydrating conditioner. Intended for medium to fine hair, the formula helps strengthen the hair fiber and smooth your strands while preventing color fade. 


Masque Chroma Filler Mask

Deep conditioning strengthening hair mask that gives color-treated hair a high-shine finish.

One size only for Masque Chroma Filler Mask
6.8 fl oz

Chroma Filler Hair Mask

Treat yourself to this luxurious amino acids hair treatment. The indulgent formula of this hair mask is ideal for medium to thick hair types and promotes stronger, softer, smoother, shinier strands.

Do Amino Acids Make Your Hair Grow?

One of the most common questions about amino acids is whether they can help your hair grow longer and faster. Unfortunately, there’s no scientific evidence that says you can use amino acids for hair growth. 

However, because amino acids in hair products can help strengthen your strands and reduce breakage, they can help retain your current length. Hair that’s damaged, brittle, and full of split ends is going to break off more often compared to hair that’s strong and healthy. 

Good hair day by @jodielapetitefrenchie.

What Amino Acids Does Hair Need?

Amino acids can be grouped into three different categories: nonessential, essential, and conditional. Nonessential amino acids are produced by our body, while essential amino acids are obtained elsewhere. Conditional amino acids are produced by our bodies, but typically only when we’re ill or experience stress. 

The Kérastase Chroma line utilizes an amino acid called arginine, which is a nonessential amino acid that can help fortify the hair's surface. Other common types of amino acids in hair treatments and products include alanine (nonessential) and phenylalanine (essential). 

Finding and using high-quality amino acid hair treatments might just be the step that truly elevates your hair game. If your strands could use improved strength and a boost in softness and shine, definitely give this family of products a try.

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