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shield + smooth routine
K18 healthy hair routines: when you need to repair damage, clarify build up + metals for max K18 mask results with the detox shampoo and reverse damage in 4 minutes with the hair mask. When you need to protect against daily damage, pH-optimized to reduce frizz + tangles use the DAMAGE SHIELD pH protective shampoo, soften, detangle + protect from daily damage for up to 3 days* with the DAMAGE SHIELD protective conditioner. Smooth anytime with the hair oil.
DAMAGE SHIELD pH protective shampoo: optimized pH is gentle on damaged hair, formulated with K18PEPTIDE to maintain hair health, made for all hair types + protects color, certified microbiome-friendly formula is gentle on scalp, helps reduce frizz, and tangles + promotes shine, vegan, cruelty-free + plastic net-zero
Protect against dullness, frizz + tangling. Image of hair cuticle without pH shampoo vs image of hair cuticle with pH shampoo.
DAMAGE SHIELD protective conditioner: protects hair from damage for up to 3 days*, weightlessly detangles hair, maintains hair health for all types, fortifies, softens + smooths, enhances hair's natural shine, vegan, cruelty-free + plastic net-zero.
protect hair from 3 types of damage (environmental aggressors, UV rays, mechanical styling) for up to 3 days*
one use of molecular repair hair oil delivers* clinically proven damage repair, 24-HR frizz control, 104% more shine, 78% reduction in split ends, 450F (232C) heat protection
Curly hair image before and after using K18 routine + oil.

shield + smooth routine

Limited-time daily trio for your healthiest hair.
Rated 5.0 out of 5
Based on 13 reviews

Shield hair from daily damage and smooth frizz + flyaways with this limited-time routine. K18 DAMAGE SHIELD pH protective shampoo (formerly pH maintenance shampoo) gently removes dirt + oils, NEW DAMAGE SHIELD protective conditioner helps fend off damage between treatment mask days, and a FREE award-winning mini molecular repair hair oil delivers immediate + long-term frizz control.  

Professional Only

Log In / REGISTER

This protective trio delivers clean, fortified, frizz-free hair between your client's K18 mask days.

Start with our color-safe DAMAGE SHIELD pH protective shampoo to effectively cleanse while maintaining hair health and protecting hair from damage.

Follow with the DAMAGE SHIELD protective conditioner that helps shield hair from UV rays, mechanical styling, and environmental aggressors for up to 3 days* to help maintain hair health. Nourishing, protective formula fortifies, softens, detangles, and improves smoothness + shine.

Finish with the trial-size oil, a strengthening defrizz solution that softens, adds shine, reduces split ends, and provides 450°F (232°C) heat protection*.

*Disclaimers

DAMAGE SHIELD pH protective shampoo: Certified microbiome-friendly by MyMicrobiome Standard

  • 91% said hair looks healthier, smoother + does not feel weighed down*

DAMAGE SHIELD protective conditioner: Clinically proven to provide conditioning protection against damage from UV rays, mechanical styling, and environmental aggressors for up to 3 days*

molecular repair hair oil Clinically proven to repair damaged hair*

  • 24-HR frizz control*
  • 104% more shine*
  • 78% reduction in split ends*
  • 450°F (232°C) heat protection*

*Disclaimers

how to use in the salon

Begin with pH protective shampoo: engineered for higher frequency washing like multi-wash services or clients with less buildup.

  1. Massage into hair, focusing on scalp.
  2. Thoroughly rinse.
  3. Repeat as needed.

Apply protective conditioner: added smoothness, softness + detangling after the K18 PRO molecular repair hair mask.

  1. After shampooing, do not condition yet. Towel-dry thoroughly.
  2. Apply 1-3 pumps of the PRO molecular repair hair mask.
  3. Wait 4 minutes. Do not rinse out.
  4. Apply a small amount of DAMAGE SHIELD protective conditioner from mid-lengths to ends. Build as needed.
  5. Rinse thoroughly.
  6. You do not need to re-apply the PRO molecular repair hair mask.

Finish with the molecular repair hair oil: reduce frizz, enhance shine, and provide heat protection. For reparative benefits from the K18PEPTIDE™, use without conditioner.

  1. Apply 1-3 drops to damp, towel-dried hair before styling or on dry hair as a finisher.
  2. Highly concentrated formula. Start with 1-3 drops and build as needed.

for client use

  1. Massage DAMAGE SHIELD pH protective shampoo into hair, focusing on scalp.
  2. Thoroughly rinse.
  3. Repeat as needed.
  4. Apply a small amount of DAMAGE SHIELD protective conditioner from mid-lengths to ends and build as needed.
  5. Rinse thoroughly.
  6. Apply 1-3 drops of molecular repair hair oil to damp, towel-dried hair before styling or on dry hair as a finisher.
  7. Highly concentrated formula. Start with 1-3 drops and build as needed.

BONUS: Use this protective routine between K18 mask days.

DAMAGE SHIELD pH protective shampoo
Water (Aqua) (Eau), Sodium C14-16 Olefin Sulfonate, Cocamidopropyl Betaine, Sodium Methyl 2-Sulfolaurate, Sodium Lauryl Sulfoacetate, sh-Oligopeptide-78, Panthenol, Glycerin, Sodium Phytate, Guar Hydroxypropyltrimonium Chloride, Disodium 2-Sulfolaurate, Caprylyl Glycol, Caprylhydroxamic Acid, Benzoic Acid, Citric Acid, Sodium Hydroxide, Sodium Chloride, Fragrance (Parfum), Limonene.

DAMAGE SHIELD protective conditioner
Water (Aqua) (Eau), Isopropyl Palmitate, Stearyl Alcohol, Propanediol, Isopentyldiol, Behentrimonium Chloride, Tocopherol, Tocopheryl Acetate, sh-Oligopeptide-78, Alteromonas Ferment Extract, Prunus Amygdalus Dulcis (Sweet Almond) Oil, Simmondsia Chinensis (Jojoba) Seed Oil, Phospholipids, Jojoba Esters, Calcium Gluconate, Hydroxypropyl Guar Hydroxypropyltrimonium Chloride, Ceramide NP, Phytosteryl/Isostearyl/Cetyl/Stearyl/Behenyl Dimer Dilinoleate, Polyquaternium-16, Stearalkonium Chloride, Isopropyl Alcohol, Butylene Glycol, Gluconolactone, Phenoxyethanol, Sodium Benzoate, Citric Acid, Sodium Hydroxide, Fragrance (Parfum), Hydroxycitronellal.

molecular repair hair oil
Caprylyl Caprylate/Caprate, Squalane, Persea Gratissima (Avocado) Oil, Helianthus Annuus (Sunflower) Oil, C13-15 Alkane, Undecane, Benzyl Alcohol, Tridecane, Castor Isostearate Succinate, Propanediol, sh-Oligopeptide-78, Fragrance (Parfum), Tocopherol, Cinnamal, Hexyl Cinnamal, Limonene, Linalool.

pairs well with

professional molecular repair mask

Rated 4.8 out of 5
Based on 1640 reviews
Second step of K18REPAIR™ service reverses damage post-service Log In / REGISTER

PEPTIDE PREP™ detox shampoo

Rated 4.8 out of 5
Based on 199 reviews
Back bar size of our color-safe, non-stripping clarifying shampoo formulated with the K18PEPTIDE™ Log In / REGISTER

Description

Shield hair from daily damage and smooth frizz + flyaways with this limited-time routine. K18 DAMAGE SHIELD pH protective shampoo (formerly pH maintenance shampoo) gently removes dirt + oils, NEW DAMAGE SHIELD protective conditioner helps fend off damage between treatment mask days, and a FREE award-winning mini molecular repair hair oil delivers immediate + long-term frizz control.  

got questions?

Get started here

DAMAGE SHIELD is our newest innovative category that takes the guesswork out of your K18 routine. Developed to offer protection from damage between treatment mask days, plus extra softening and protection after salon services. This category includes the DAMAGE SHIELD protective conditioner + the renamed pH protective shampoo (previously pH maintenance shampoo).

No, the formula of the DAMAGE SHIELD pH protective shampoo is not different from the PEPTIDE PREP™ pH maintenance shampoo. Just the name has changed, the formulation you know and love is the same.

No, the conditioner does not repair damage like the mask does. This nourishing, protective conditioner shields against 3 types of damage (daily mechanical, UV, and environmental) for up to 3 days*— to help maintain hair health and improve smoothness and shine. Both formulas include the K18PEPTIDE™ with different benefits.

The mask has a higher concentration of the peptide to reverse damage. In the conditioner, the K18PEPTIDE™ replenishes protein lost during washing, while the cuticle is still swollen, to fortify hair health and strength. To get damage repair benefits from the K18PEPTIDE™, use the K18 mask first, wait 4 minutes, then apply the K18 conditioner.

*k18hairpro.com/disclaimers

For best results, we do not recommend mixing the K18 conditioner with the oil. Use the K18 molecular repair hair oil after the K18 conditioner.

For maximum damage repair benefits from the molecular repair hair oil, we recommend using it without conditioner.

how K18 works

Traveling into the innermost layers of hair, our K18PEPTIDE™ renews strength along the width AND length of hair for lasting strength where it matters.

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pros using K18

reviews

average rating 5.0 out of 5
Based on 13 reviews
  • 5 Stars
    13 Reviews
  • 4 Stars
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    0 Reviews
  • 2 Stars
    0 Reviews
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100% of reviewers would recommend this product to a friend
Customer photos and videos
13 Reviews
Reviewed by Susan B.
Verified Buyer
I recommend this product
Age
55 - 64
Client Hair Concerns
  • Chemical Damage
  • Heat Damage
  • Frizz
  • Color Care
  • Dryness
Client Hair Types
  • Medium Density
  • Thick/Coarse
  • Straight/Wavy
  • Curly/Coily
  • Grey Hair
Client Results
  • Less Frizz
  • Bouncy Hair
  • Visible Difference
  • Stronger hair
  • Less Breakage
Rated 5 out of 5
Review posted

Shampoo and conditioner

The shampoo and conditioner is very great to use as well as the system it's a great add-on for people to take home to keep their hair healthy this is a great innovative product never imagined it could be like this but it is K-18 broke all records with hair care five stars highly recommended it

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K18Hair PRO

Thank you for your review Susan!

Reviewed by Kristy F.
Verified Buyer
I recommend this product
Age
35 - 44
Client Hair Concerns
  • Heat Damage
  • Frizz
  • Color Care
Client Hair Types
  • Fine/Thin
  • Medium Density
Client Results
  • Less Frizz
  • Stronger hair
  • Soft Touchable Hair
Rated 5 out of 5
Review posted

Whoa!! This is the best!!

This is the best routine for the healthiest of hair!! You can’t go wrong with K18!!

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K18Hair PRO

We appreciate your review Kristy!

Reviewed by Valerie B.
Verified Buyer
I recommend this product
Age
55 - 64
Client Hair Concerns
  • Chemical Damage
  • Dryness
Client Hair Types
  • Fine/Thin
Client Results
  • Smoother Hair
  • Soft Touchable Hair
  • Less Frizz
Rated 5 out of 5
Review posted

Magiccal!

I've tried other pH balancing products and this one by far has given immediate results to appearance and feel. This is now a staple! Out with the old, in with the new!

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K18Hair PRO

We appreciate your review and trust with your clients hair Valerie!

Reviewed by Janna U.
Verified Buyer
I recommend this product
Age
35 - 44
Rated 5 out of 5
Review posted

Great

Love this product

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K18Hair PRO

Thank you for your review!

Reviewed by Randy D.
Verified Buyer
I recommend this product
Age
55 - 64
Client Hair Concerns
  • Chemical Damage
  • Heat Damage
  • Color Care
  • Frizz
  • Fragile/Brittle Hair
Client Hair Types
  • Thick/Coarse
  • Medium Density
  • Straight/Wavy
  • Curly/Coily
  • Grey Hair
Client Results
  • Less Frizz
  • Bouncy Hair
  • Stronger hair
  • Defined Curl/Wave Pattern
  • Soft Touchable Hair
Rated 5 out of 5
Review posted

Excellent!

My clients and I like the way their hair feels, soft and bouncy. I love it for myself as well.

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K18Hair PRO

Thank you Randy for your trust with your clients hair!

recommended products

professional molecular repair mask
Rated 4.8 out of 5
Based on 1640 reviews
Second step of K18REPAIR™ service reverses damage post-service
Log In / REGISTER Find a Distributor
PEPTIDE PREP™ detox shampoo
Rated 4.8 out of 5
Based on 199 reviews
Back bar size of our color-safe, non-stripping clarifying shampoo formulated with the K18PEPTIDE™
Log In / REGISTER Find a Distributor
Pro Distribution Partners

Hair professionals can shop wholesale at the following distributors. Professionals within the US will also be able to shop directly from K18hair.com starting early 2021! Check back again soon for updates as we continue to expand globally.



Questions? Email us at hello@k18hair.com

Paramount Beauty Supply
USA
Salon Services Pro
USA
Salon Service Group
USA
Salonwax Pro
USA
Premier Beauty Supply
USA
Launching Soon
Ozdare - Australia
AU
 
Launching Soon
American Crew Ltd. - New Zealand
NZ
 
Launching Soon
PlayGround - Hong Kong
HK
 
Launching Soon
Session Map - Sweden
SE
 
Launching Soon
Cyprus
CY
 
Launching Soon
Belgium
BE
 
Coming Early 2021
Canada
CA
 
Coming Early 2021
Czech Republic
CZ
 
Coming Early 2021
Finland
FI
 
Coming Early 2021
France
FR
 
Coming Early 2021
Germany
DE
 
Coming Early 2021
Ireland
IR
 
Coming Early 2021
Italy
IT
 
Coming Early 2021
Netherlands
NL
 
Coming Early 2021
Norway
NO
 
Coming Early 2021
Singapore
SG
 
Coming Early 2021
Taiwan
TW
 
Coming Early 2021
UK
UK
 
Coming Early 2021
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