Best Keratin Deep Conditioners of 2026

Lisa Bechard Avatar
Lisa Bechard
Last Updated: Jan 12, 2026

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Keratin deep conditioners are a popular choice for those looking to improve the health and appearance of their hair. These products contain keratin, a protein that is naturally found in hair, and work to strengthen and repair damaged strands. They are particularly beneficial for those with dry, brittle, or chemically treated hair. Keratin deep conditioners are easy to use, typically applied after shampooing and left on for several minutes before rinsing. With regular use, they can leave hair looking and feeling smoother, shinier, and more manageable.

At a Glance: Our Top Picks

It's A 10 Haircare Miracle Deep Conditioner Plus Keratin Cover #TOP 1
It's A 10 Haircare Miracle Deep Conditioner Plus Keratin
ftb score rating icon 9.8
Keratin Complex Vanilla Bean Deep Conditioner, 7oz Cover #TOP 2
Keratin Complex Vanilla Bean Deep Conditioner, 7oz
ftb score rating icon 9.7
HASK Keratin Smoothing Deep Conditioner Cover #TOP 3
HASK Keratin Smoothing Deep Conditioner
ftb score rating icon 9.5

Top 10 Keratin Deep Conditioners

It's A 10 Haircare Miracle Deep Conditioner Plus Keratin

708302335553
BLUE
5 Fl Oz (Pack of 1)
It's A 10 Haircare Miracle Deep Conditioner Plus Keratin Cover
It's a 10 Haircare Miracle Deep Conditioner Plus Keratin 5 Oz

It's A 10 Haircare Miracle Deep Conditioner Plus Keratin is a cream-based deep conditioner that restores elasticity and strength, protects color and deeply moisturizes hair. It contains Keratin Amino Acids and Hydrolyzed Keratin, Sweet Almond Oil, and Chinese Tea Leaf, which penetrate deep within the hair shaft to restore structure, seal the cuticle, and reveal shine. This versatile compound shields against damage-causing environmental stressors and heat, locks in moisture, and guards against humidity. Its superior penetration smooths and detangles dry or brittle hair, making it perfect for chemically treated or damaged hair.

What We Like
Softens and detangles hair
Works for curly and damaged hair
Nice fragrance
Does not weigh down hair
Improves hair strength and shine
#TOP 2

Keratin Complex Vanilla Bean Deep Conditioner, 7oz

frag187432
White
7 Ounce (Pack of 1)
Keratin Complex Vanilla Bean Deep Conditioner, 7oz Cover
Keratin Complex - Vanilla Bean Deep Conditoner - 7 oz

Say goodbye to dry, damaged hair with Keratin Complex Vanilla Bean Deep Conditioner. Infused with vanilla fruit extracts, this deep conditioner moisturizes, softens, and smooths your hair. The blend of botanical extracts nourishes your hair and scalp, promoting healthy hair growth. This color-safe, keratin-enhanced conditioner is perfect for all hair types.

What We Like
Infused with vanilla fruit extracts for an indulgent aromatherapy experience
Restores moisture and shine to dry, damaged hair with keratin, wheat, and soy proteins
Blend of botanical extracts nourishes hair and scalp, promoting healthy hair growth
Color-safe and suitable for all hair types
Leaves hair feeling soft, smooth, and revitalized

HASK Keratin Smoothing Deep Conditioner

White
8 Fl Oz (Pack of 1)
HASK Keratin Smoothing Deep Conditioner Cover
HASK Keratin Smoothing Deep Conditioner Treatment for all hair types, color safe, gluten free, sulfate free, paraben free - 8 Fl Oz

The HASK Keratin Conditioner is a deep treatment designed to leave your hair feeling soft, shiny, and free from frizz. It uses smoothing keratin to restore moisture and smoothness, which is great if you want healthier-looking hair. This conditioner also helps repair damaged strands and reduce breakage, making it perfect for those with color-treated or over-processed hair. You’ll enjoy a fresh, fruity floral scent that adds a pleasant experience to your hair care routine. To use, simply apply it to clean, wet hair, focus on damaged areas, leave it on for 10 minutes, then rinse and style as usual.

What We Like
Soft, smooth, shiny hair
Great for curly and thick hair
Affordable price
Pleasant fragrance
Effective detangling
#TOP 4

It's A 10 Deep Conditioner Plus Keratin

U-HC-7370
5 Fl Oz (Pack of 1)
It's A 10 Deep Conditioner Plus Keratin Cover
It's A 10 Deep Conditioner Plus Keratin for Unisex, 5 Ounce

If you're looking for a daily deep conditioner that can help you maintain the health of your hair, then It's A 10 Deep Conditioner Plus Keratin is a great choice for you. This product comes in a 5-ounce package that is easy to store in a cool dry place. It contains natural ingredients that are safe for all hair types, including dull, color treated, chemically treated, and damaged hair. The conditioner is enriched with keratin, which helps to detangle your hair, leaving it shiny and healthy-looking. The product is made in the United States and is recommended for daily use.

What We Like
Contains natural ingredients
Enriched with keratin for detangling
Recommended for daily use
Easy to store package
Suitable for all hair types

Keratin Perfect Keratin Hydrate Deep Conditioner - 7 oz

I0099345
Clear
1 Fl Oz (Pack of 1)
Keratin Perfect Keratin Hydrate Deep Conditioner - 7 oz Cover
Keratin Perfect KP Hydrate - 7oz

Transform your hair with Keratin Perfect Keratin Hydrate Deep Conditioner. Ideal for all hair types, this sulfate-free conditioner boosts manageability and softness. Its salon-quality keratin blend helps strengthen your hair, leaving it healthier and more beautiful over time. Revive dull hair and enjoy a natural shine with this hydrating formula that also prevents further hair loss. Say goodbye to dry, wild hair and welcome smooth, soft, and silky tresses with this moisturizing product that also helps repair damaged hair. No additional spa treatments necessary.

What We Like
Works for all hair types
Salon-quality keratin blend for stronger and healthier hair over time
Revives dull hair and prevents further hair loss
Leaves hair smooth, soft, and silky
No additional spa treatments necessary
#TOP 6

GK HAIR Global Keratin Deep Conditioner Masque

GK HAIR
White
GK HAIR Global Keratin Deep Conditioner Masque Cover
GK HAIR Global Keratin Deep Conditioner Masque Pack of 2 (7.05 Fl Oz/200 g) Intense Hydrating Repair Treatment Mask for Dry Damaged Color Treated Frizzy Hair Restoration Formula with JOJOBA Seed Oils

The GK HAIR Deep Conditioner is designed to deeply repair and restore dry, damaged, or color-treated hair by penetrating the hair cuticles. This treatment helps strengthen your hair, making it look healthier while supporting natural hair growth. Suitable for all hair types, it rejuvenates your scalp and brings back your hair’s elasticity and manageability. Enriched with keratin protein and jojoba seed oils, this mask adds moisture and volume without weighing your hair down. It smooths and nourishes each strand, making your hair easier to style and more resistant to breakage, giving you a softer and more manageable finish.

What We Like
Deep hair repair
Suitable for all hair types
Moisturizes with keratin and jojoba
Smooths and strengthens hair
#TOP 7

KERATHERAPY Keratin Infused Deep Conditioning Masque

6480
Clear
KERATHERAPY Keratin Infused Deep Conditioning Masque Cover
KERATHERAPY Keratin Infused Deep Conditioning Masque, 16.9 fl. oz., 500 ml - Moisturizing Hair Deep Conditioning Treatment with Kerabond, Jojoba Oil, Nettle Root Extract, Wheat Oil, & Persian Walnut

KERATHERAPY Deep Conditioner is a part of the Moisture Collection by Keratherapy, which includes four sulfate-free and sodium chloride-free hair care products. The Moisture Shampoo is perfect for oily scalp and dry ends, while the Moisture Hydrating Conditioner is a great hair moisturizer for dry and damaged hair. The Moisturizing Hair Repair Mask replenishes lost texture, making it a great moisturizing hair mask for weak and dry hair. The Moisture Hair Leave in Conditioner is a spray that tames flyaways and adds bounce to your hair, resulting in shinier and healthier-looking hair. With KERATHERAPY Deep Conditioner, you can achieve beautiful hair with just one use.

What We Like
Sulfate-free
Sodium chloride-free
Replenishes lost texture
#TOP 8

TRIDESIGN Keratin Amino Intense Repair Conditioner

tri04-6-oz
6 Fl Oz (Pack of 1)
TRIDESIGN Keratin Amino Intense Repair Conditioner Cover
TRIDESIGN Keratin Amino Intense Repair, Keratin Hair Treatment Intensive Conditioner w/Coconut Oil,Fatty & Amino Acids, Hydrolyzed Keratin Protein - Moisturizing Hair Mask & Hair Treatment Mask 6 oz

The TRIDESIGN Keratin Repair Mask is a nourishing treatment that combines keratin, coconut oil, and amino acids to deeply condition and strengthen your hair. If your hair feels dry or damaged from heat styling, coloring, or environmental factors, this mask helps restore its health and vitality. You can enjoy professional salon-quality results right at home, as the treatment penetrates deeply to improve your hair’s elasticity, shine, and manageability. Infused with coconut oil, it also delivers lasting moisture and a healthy shine, making your hair feel soft and revitalized from root to tip.

What We Like
Deep conditioning
Hair damage repair
Salon-quality results
Coconut oil hydration
Suitable for all hair types

UNOVE Deep Damage Hair Treatment Mask

8809485532707
Multicolor
7 Fl Oz (Pack of 1)
UNOVE Deep Damage Hair Treatment Mask Cover
UNOVE Deep Damage Treatment Ex - Protein Hair Treatment & Hair Mask for Damaged Hair | Deep Conditioning & Keratin Hair Mask for Dry, Frizzy Hair | Korean Hair Care | Tender Bloom, 7 fl oz

The UNOVE Hair Treatment Mask is designed to rejuvenate dry and damaged hair with its rich blend of proteins and nutrients. You’ll benefit from its high protein concentration, which penetrates deeply to strengthen your hair, making it ideal for those with weak strands. This mask is particularly effective for severely damaged hair, offering intense care that enhances softness and shine. Plus, it’s quick to use—just apply for 10 seconds to achieve salon-quality results at home. You'll also love the delightful citrus and floral scent that lingers, adding a refreshing touch to your hair care routine.

What We Like
High protein concentration
Quick application time
Improves softness and shine
Pleasant fragrance
#TOP 10

WONDER FAMILY Keratin Hair Mask

Keratin Restore
WONDER FAMILY Keratin Hair Mask Cover
Keratin Hair Mask for Damaged Hair – Deep Conditioning, Hair Gloss, Growth & Repair Treatment with Biotin – Korean Hydrating Hair Moisturizer Mask for Curly, Frizzy, Bleached Hair

The WONDER FAMILY Keratin Mask offers a powerful solution for damaged and processed hair. It uses a blend of keratin, biotin, and panthenol to restore shine, smooth out split ends, and strengthen weak strands, making it perfect for those recovering from color treatments. Inspired by Korean hair care, this mask also supports hair growth and adds a healthy gloss while improving scalp health. If you have curly, dry, or frizzy hair, this hydrating mask delivers moisture and softness without weighing your hair down. Plus, its lightweight leave-in formula helps control frizz and detangle hair, making daily styling easier and more manageable.

What We Like
Damage repair
Hair growth support
Moisturizing for curls
Frizz control
Lightweight leave-in
Buying Guide Image

Frequently Asked Questions (FAQs)

1. What does keratin deep conditioner do?

Keratin-enriched deep conditioner is an intensely moisturizing and repairing treatment for dry, chemically processed, and heat-damaged hair. The keratin in a hair mask helps increase hair elasticity, restores strength, and makes hair thicker and more alive.

2. Is keratin deep conditioner good?

With keratin as the deep conditioning treatment's main ingredient, the product actually smooths out the hair cuticle and layers it with a strong protective coating that "resists heat, humidity, styling, split ends, and sun damage." Afterward, hair is left feeling smoother, detangled, shinier, and stronger.

3. How often should I use a keratin deep conditioner?

Only use deep conditioner once a week. To use deep conditioner: Read the label to determine whether your hair needs to be wet or dry when you apply it.

4. Is keratin in conditioner good for hair?

Keratin treatments and keratin-infused products offer many benefits to your hair. Smooths hair and reduces frizz : Keratin infused products—which often come in oil or serum form–can result in a smoother, shinier, healthier-looking mane.

Editor's Notes

During our keratin deep conditioner research, we found 32 keratin deep conditioner products and shortlisted 10 quality products. We collected and analyzed 41,451 customer reviews through our big data system to write the keratin deep conditioners list. We found that most customers choose keratin deep conditioners with an average price of $17.59.

The keratin deep conditioners are available for purchase. We have researched hundreds of brands and picked the top brands of keratin deep conditioners, including It's a 10 Haircare, Keratin Complex, HASK, Keratin Perfect, GK HAIR. The seller of top 1 product has received honest feedback from 26,580 consumers with an average rating of 4.9.

Written by
Lisa Bechard Avatar

Lisa Bechard is a skin therapist with 12 years of working experience in the beauty industry and also an experienced beauty writer who has expertise in skincare, medical aesthetics and cosmetic surgery, and wellness. Her writing skills are excellent and all her content is very persuasive and insightful.