Free Standard Shipping on $125+ Orders
free returns. buy with confidence

shield + smooth routine

Limited-time daily trio for your healthiest hair.
Rated 5.0 out of 5
Based on 2 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

Every purchase supports K18 x Plastic Bank efforts to radically simplify waste.
In 2022 we stopped147 Metric tons of plastic
=
7.3M+ single-use plastic bottles from reaching the ocean

more to know

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

key benefits

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

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.

ingredients

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 1484 reviews
Second step of K18REPAIR™ reverses damage post-service View Professional Molecular Repair Mask 150 mL (WHOLESALE) product Log In / REGISTER

PEPTIDE PREP™ detox shampoo

Rated 4.8 out of 5
Based on 175 reviews
Back bar size of our color-safe, non-stripping clarifying shampoo formulated with the K18PEPTIDE™ View PEPTIDE PREP™ detox shampoo 32oz (WHOLESALE) product 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

What is DAMAGE SHIELD?

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).

Is the formula of the DAMAGE SHIELD pH protective shampoo different from the PEPTIDE PREP™ 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.

Can the K18 conditioner repair damage like the mask does?

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

Can I mix the K18 conditioner with the oil?

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.

Does the molecular repair hair oil still repair if used after 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.

shopping with us has its perks

exclusive tools

Get access to monthly live training, professional education, and business guides.

free shipping on $125+ orders

Shop K18 at professional wholesale pricing (no order minimums here).

real support

We have K18 experts on standby to answer allll your product and order questions.

pros using K18

reviews

average rating 5.0 out of 5
Based on 2 reviews
  • 5 Stars
    2 Reviews
  • 4 Stars
    0 Reviews
  • 3 Stars
    0 Reviews
  • 2 Stars
    0 Reviews
  • 1 Star
    0 Reviews
100% of reviewers would recommend this product to a friend
2 Reviews
Reviewed by Kristine F.
Verified Buyer
I recommend this product
Age
45 - 54
Client Hair Concerns
  • Chemical Damage
  • Heat Damage
  • Frizz
  • Dryness
  • Color Care
Client Hair Types
  • Thick/Coarse
  • Straight/Wavy
  • Grey Hair
  • Medium Density
  • Curly/Coily
Client Results
  • Less Frizz
  • Visible Difference
  • Less Breakage
  • Stronger hair
  • Smoother Hair
Rated 5 out of 5
Review posted

Miracle workers!

The shampoo and conditioner have changed my decision to cut my hair! My hair is thick, wavy, some gray and colored. To say it looks and feels dry is an understatement. A lot of shampoos and conditioners made my hair feel greasy or weighed down. I was considering just cutting my long hair short…. Not any longer! From the first use of the Damage Shield shampoo and conditioner, my hair felt and looked healthy and hydrated. I am amazed at what this product does for hair and what can be achieved with one use. I am a believer!!

Loading...
Was this helpful?

K18Hair PRO

We appreciate you Kristine! Thank you for your review!

Reviewed by Nicole G.
Verified Buyer
I recommend this product
Age
18 - 24
Client Hair Concerns
  • Heat Damage
  • Color Care
  • Chemical Damage
  • Dryness
Client Hair Types
  • Fine/Thin
  • Medium Density
Client Results
  • Visible Difference
  • Less Breakage
  • Smoother Hair
  • Bouncy Hair
Rated 5 out of 5
Review posted

Love the smell, love the product!

I love this new k18 product. Coming in with mixed reviews I had to try it out and I absolutely love it. It makes all hair feel amazing and the kit is perfect for a trial and the bonus oil is just that, a bonus because it’s simply amazing as well! I will be recommending this product!

Loading...
Was this helpful?

K18Hair PRO

Thank you Nicole for your review!

recommended products

PEPTIDE PREP™ detox shampoo
Rated 4.8 out of 5
Based on 175 reviews
Back bar size of our color-safe, non-stripping clarifying shampoo formulated with the K18PEPTIDE™
View Professional Molecular Repair Mask 150 mL (WHOLESALE) product
Log In / REGISTER Find a Distributor
Pro Distribution Partners

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
thank you for visiting!

You are now being redirected to an official partner website for this region where you can shop K18 Hair.

Changed your mind? Go back.

00:00
Blackfire Tracking
subscribe + save 15%
healthy hair on your schedule
Pick your K18 + how often you want to replen.
We’ll send you a heads up before every delivery.
You’re in charge. Change the way you pay, skip a shipment, or cancel anytime.