5 Keratin Leave-In Conditioners That Will Make Your Hair Strong and Smooth

Last Updated on December 28, 2022 by Gaga

Keratin is a major component of human hair and protecting it is crucial to have strong and flexible strands. Keratin content decreases with age, resulting in weak, lifeless, and brittle hair. Other factors that may cause keratin damage are frequent heat styling, regular coloring, and harsh chemical treatments. When the keratin in your hair gets depleted, your hair becomes dry, frizzy, and prone to tangles.

If you want to strengthen, straighten, and revive your dry, lackluster hair, you should consider using hair products infused with keratin. Keratin-enriched hair products will improve the structure of hair fibers, keeping your locks in top condition.

Keratin particles in the form of hydrolyzed proteins and amino acids fill the gaps in the hair shaft, making your hair stronger, shinier, and easier to style.

What Keratin Leave-in Sprays Can Do for Your Hair?

a woman applying a leave-in conditioner to her damp hair

A Leave-in conditioner enriched with keratin is a hair product that you leave in the hair between shampoos to restore depleted keratin levels and lock in moisture. It offers multiple benefits to weak, porous, and frizzy hair:

Shields from damage: A keratin leave-in conditioner can greatly reduce the risk of hair damage when you use it before blow-drying and straightening. It also rebuilds hair’s cuticle and makes your locks stronger, thicker, and less prone to breakage.

Tames frizz: Curly/coarse hair types are naturally prone to frizz which can be a nightmare to deal with. Keratin leave-in products make dry curly hair smooth, frizz-free, and manageable. They make your curls beautifully smooth and shiny.

Prevents tangles: To keep your hair tangle-free and easy to comb, apply a fine mist of leave-in keratin spray over your damp hair. This will also help reduce porosity and split ends.

Keratin Leave-In Treatments Worth Your Attention

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1. Worth the Price: VIRTUE Smooth Conditioner

This conditioner is formulated with Alpha Keratin 60ku(R) – a protein that is almost identical to the hair’s natural keratin.

Keratin particles bind to areas of damage and fill the gaps in the hair shaft, leaving your hair stronger, shinier, and dramatically smoother.

VIRTUE Smooth Conditioner works as a daily smoothing treatment. It repairs and smoothes the cuticle to lock in moisture and reduce friction between hair strands. This results in tangle-free and frizz-free hair.

The company claim that its Smooth Conditioner reduces frizz by up to 95% after four applications. It takes five applications to repair the split ends up to 95%. A single strand becomes 22% thicker after just one application, creating added volume. Finally, color vibrance increases by up to 138% after five applications.

According to these claims, frizz-prone, dry, or curly hair will get the most benefits. It also may be worth considering if you frequently color and bleach your hair.

2. Nano Dryfix Micro Therapy Leave-In Conditioning Treatment by Research in Beauty

This innovative treatment uses patented keratin microcapsule technology that has been scientifically proven to replenish hair with vital moisture and repair damaged hair fibers. Using this product means delivering deep, continuous nourishment to your hair.

Hair types: Research In Beauty conditioner is formulated to provide the most benefits to dry, brittle, and frizz-prone hair.

Key ingredients: The micro therapy emulsion contains nano-sized keratin microcapsules, natural oils, and essential fatty acids that work to replenish hair with vital moisture and keratin. Keratin microcapsules help strengthen hair fibers and form a protective layer around the hair shaft that prevents future damage and dramatically improves the overall appearance of your hair.

Benefits: In addition to smoothing benefits, this conditioner also repairs damage and keeps your hair soft, frizz-free, and beautiful.

3. CHI Keratin Leave-In Conditioner

This reconstructing leave-in treatment is designed to infuse dry and damaged strands with keratin proteins and nourishing oils to seal the cuticle and create silky soft and shiny hair.

Hair types: CHI Keratin Leave-In Conditioner is made for dry, damaged, chemically treated, and frizz-prone hair.

Key ingredients: The formula uses keratin amino acids, hydrolyzed silk, argan oil, and jojoba oil to infuse hair with moisture and restore hair elasticity, softness, and shine.

Benefits: CHI Keratin Leave-In Conditioner claims to repair damaged cuticles, improve elasticity, and reduce breakage. This results in healthier, smoother, and frizz-free hair.

Suggested use: After shampooing, spray an even mist throughout the hair and leave it in. Don’t use too much product as it may leave residue in your hair. Avoid the scalp and root area to prevent your hair from looking greasy.

Woman's hair nourished with a keratin leave-in conditioner

4. Amika Vault Color-Lock Leave-in Conditioner

This lightweight leave-in spray is formulated with a blend of amino acids and enriched with UV filters to protect your hair color. It is ideal for color-treated hair and hair that is prone to tangling.

Key ingredients: This product uses an amino acid complex to improve strength and sea buckthorn oil to promote collagen production. UV absorbers also add additional protection against the sun. The formula is free of paraben, sulfate, gluten, sodium chloride, artificial color, mineral oil, and phthalates. The product is cruelty-free.

Benefits: Amika Vault Color-Lock Leave-in Conditioner works to smooth the cuticle and restore shine and softness. It protects hair from UV damage and enhances color vibrancy.

Suggested use: Spray throughout clean, towel-dried hair. Use a comb to distribute the product throughout your hair. This leave-in spray can also be used on dry hair.

5. Keratin Leave-In Conditioner by Damila

This liquid leave-in spray uses keratin proteins to fix the damage and strengthen hair that has been damaged by harsh chemical treatments and hot styling tools.

Hair types: Damila’s leave-in conditioner works best on damaged or chemically-treated hair.

Key ingredients: Hydrolyzed keratin, wheat amino acids, hydrolyzed wheat protein, and a blend of amino acids fill in damaged areas in the hair shaft, strengthen hair fibers, and restore elasticity and shine. 

Benefits: This leave-in conditioner protects the hair from styling damage, reduces breakage, and keeps hair smooth, silky, and shiny.

Suggested use: After shampooing, spray on your damp hair. Comb through to spread it throughout your hair. Use a blow dryer or let your hair air dry.

Hydrolyzed Keratin vs. Keratin

Keratin molecules have a high molecular weight and can’t penetrate the hair shaft. These keratin molecules just attach to the hair surface, and despite the benefits they provide, they can make your hair look heavy and greasy. Hydrolyzed keratin, however, has a very low molecular weight, which allows the protein particles to penetrate the hair shaft and rebuild the hair from the inside instead of just coating hair strands.

A beautiful woman with wavy blonde hair

About the author

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Gaga is a blogger and founder of the Softer Hair website. She often says that insomnia is to blame for her first blogging attempts. Being the night owl, she hated the morning alarm. She left her office job and returned to what she loved most - writing.


1 thought on “5 Keratin Leave-In Conditioners That Will Make Your Hair Strong and Smooth”

  1. Being a blonde, could I use a Keratin treatment once a week? Do you have any extra information that would help out?

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