Name: Prep & Repair At Home Duo
Brand: K18 Australia
SKU: K1800083
Price: 109.95 AUD
Availability: InStock

Prep & Repair At Home Duo

Unlock strong, healthy hair at home

$109.95

clarify

repair damage

vegan & cruelty free

peptide powered

free shipping over $50

pairs well with

what makes it different

Want to elevate your hair care routine?

Try the K18 PEPTIDE PREP™ Detox Mini Shampoo & Leave-In Molecular Repair Mask Routine - Full Size.

Detoxing your hair before applying the K18 Leave-In Molecular Repair Mask is essential because it removes product buildup, excess oils, and impurities from your hair and scalp. This allows the mask to penetrate deeply into the hair shaft, delivering the K18 PEPTIDE™ formula right where it’s needed most. By cleansing first, you ensure the mask can perform at its best—providing maximum repair and rejuvenation for damaged hair.

Our Prep & Repair Routine is a complete solution suitable for all hair types.

In this routine you’ll get:

K18 PEPTIDE PREP™ Detox Mini Shampoo 53ml
This clarifying shampoo, powered by K18 PEPTIDE PREP™, offers a gentle yet highly effective cleanse that removes up to 99% of product buildup, 95% of sebum, and 76% of copper from your hair. It’s ideal for detoxifying and refreshing without stripping colour or moisture. Try the K18 Peptide Prep Detox Shampoo and feel the difference.

K18 Leave-In Molecular Repair Hair Mask 50ml
Say goodbye to damaged hair with the K18 Leave-In Molecular Repair Hair Mask. This powerful leave-in treatment works at a molecular level to reverse damage from bleach, colour, and chemical services in just 4 minutes. The secret lies in the K18 PEPTIDE™, a clinically proven formula that restores strength, softness, smoothness, and bounce. With more than 11 billion TikTok views, it’s become a cult favourite for a reason. Try the K18 Leave-In Molecular Repair Mask and see visible results for yourself.

Order your routine today and enjoy the transformation of healthier, stronger, and rejuvenated hair.

Shampoo with K18 PREP PREP™ detox shampoo, do not condition.
Towel-dry thoroughly.
Begin with 1 pump of K18 mask and add more as needed depending on length, thickness, and condition. Work evenly into hair from ends to roots, one pump at a time, maximum dosage of 3 pumps.
Wait for 4 minutes. Do not rinse out.
Then comb + style as usual (fine to add heat protectant or styling product now).
Use for the first 4-6 washes, then as needed.

Powered by the K18 PEPTIDE PREP™, engineered over 10 years in a biotech lab to work on the molecular level to rebuild hair from the inside out in just 4 minutes.
Because the K18 PEPTIDE PREP™ works at the molecular level, it works on every single hair type.
Clinically proven to reverse hair damage from: Bleach + Colour, Chemical Services, Heat.
Restores strength, softness, smoothness, and bounce.
Immediate + progressive results.
Vegan, colour-safe, cruelty-free.

K18 PEPTIDE PREP™ detox shampoo

Water (Aqua) (Eau), Sodium C14-16 Olefin Sulfonate, Cocamidopropyl Hydroxysultaine, Salicylic Acid, Charcoal Powder, sh-Oligopeptide-78, Panthenol, Glycerin, Sodium Phytate, Guar Hydroxypropyltrimonium Chloride, Caprylyl Glycol, Caprylhydroxamic Acid, Citric Acid, Potassium Hydroxide, Sodium Hydroxide, Fragrance (Parfum), Benzyl Salicylate, Limonene.

K18 leave-in molecular repair hair mask

Water (Aqua) (Eau), Alcohol Denat., Propylene Glycol, Cetearyl Alcohol, Dicaprylyl Ether, Cetyl Esters, Behentrimonium Chloride, Polysorbate 20, sh-Oligopeptide-78 (K18Peptide™), Hydrolyzed Wheat Protein, Hydrolyzed Wheat Starch, Isopropyl Alcohol, Tocopherol, Phenoxyethanol, Potassium Sorbate, Citric Acid, Fragrance (Parfum), Geraniol, Linalool, Hexyl Cinnamal, Benzyl Alcohol.

K18PEPTIDE™ is a biotech-developed peptide that mimics hair's structure to reverse damage by reconnecting polypeptide chains and disulfide bonds broken during bleaching, colour and chemical services + heat*.
pH-optimised (5.0-6.0) to help minimise cuticle swelling + put hair proteins in their most resilient state.
Cream format enables easy, lightweight application across all hair types, with detangling and softening benefits.
Vegan, colour-safe, cruelty-free.

dos & don'ts

DO clarify before K18 if you’re a heavy product user (demineralise for mineral + metal build-up).
DO apply on clean, damp hair.
DO wait the full 4 minutes before combing or styling.
DO add whatever styling products you love after the 4 minutes.
DO use for 4-6 shampoos consecutively for progressive results.
DON'T use conditioner before applying K18 Mask (you can apply leave-in conditioner after the 4 min but most find they don’t need it).
DON'T overdo it—less is more.
DON'T rinse it out.

Get started here

got a question?

Less is more, so don’t overdo your K18 mask application. This highly concentrated formula was made to use way less than your traditional hair mask or conditioner. Massage the product between your palms until the product thickens. Add more as needed.

Think of K18 mask as a highly concentrated treatment. It restores hair’s strength + elasticity in the innermost layers of hair, instead of traditional conditioners that coat the outside of hair. Skip conditioner before applying the K18 mask so it has a clean canvas to penetrate into the innermost layers of hair. After the 4-minute wait time post-K18, feel free to add a leave-in for a boost of conditioning if needed.

Swap your regular shampoo for this power wash once a week or as needed. No matter your hair type or product routine, a regular detox shampoo is essential to remove buildup, reset texture, and maximise the performance of treatments and stylers — like K18 molecular repair.

The detox shampoo combines activated charcoal to absorb toxins, excess oil, and dirt from hair and scalp with salicylic acid to clear sebum buildup in follicles—without stripping essential moisture and lipids. Our patented K18PEPTIDE™ helps reduce protein loss, keeping hair feeling healthy and strong with every wash.