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The JUSTK Nourishing Keratin & Collagen Shampoo 300ml is a restorative, strengthening shampoo designed to revive dry, damaged, frizzy, or chemically treated hair. Infused with Keratin to rebuild hair structure and Collagen to boost elasticity and shine, this shampoo delivers salon‑quality nourishment with every wash. Its rich, creamy formula gently cleanses while reinforcing the hair fibre, leaving your hair smoother, stronger, and visibly healthier.
Perfect for hair that has been weakened by colouring, heat styling, or environmental stress, this shampoo restores softness and manageability while reducing breakage. With consistent use, your hair becomes more resilient, hydrated, and beautifully revitalised.
Strengthening formula enriched with Keratin and Collagen
Gently cleanses while repairing damaged hair
Restores elasticity, shine, and smoothness
Reduces frizz and breakage
Ideal for chemically treated, coloured, or heat‑damaged hair
Helps rebuild hair structure from within
Leaves hair soft, silky, and manageable
Suitable for daily or regular use
Comes in a 300ml bottle
Hair Types: Dry, Damaged, Frizzy, Chemically Treated, Coloured, Heat‑Styled, Weak or Brittle Hair
Ideal For:
Hair damaged by colouring, bleaching, or chemical treatments
Hair weakened by heat styling (straighteners, curlers, blow dryers)
Frizzy or coarse hair needing smoothing
Thin or fragile hair needing strength and elasticity
Anyone wanting healthier, shinier, more manageable hair
Rebuilds and strengthens hair fibres
Deeply nourishes and hydrates dry, stressed hair
Improves elasticity and reduces breakage
Smooths frizz and enhances shine
Helps restore softness and manageability
Supports long‑term hair health and resilience
Enhances the results of keratin or smoothing treatments
This shampoo is formulated for those who want salon‑level repair and nourishment at home. Keratin helps rebuild the hair’s natural protein structure, while Collagen boosts elasticity and moisture retention. Together, they create a powerful restorative blend that transforms dull, damaged hair into smooth, strong, and vibrant strands. It’s the perfect choice for anyone wanting to revive their hair’s natural beauty.
Wet hair thoroughly.
Apply a generous amount of shampoo to the scalp and hair.
Massage gently to create a rich lather.
Rinse well and repeat if necessary.
Follow with a keratin or collagen conditioner for best results.
Pro Tip: For extremely damaged hair, leave the shampoo on for 1–2 minutes before rinsing to allow deeper penetration.
Keratin, Collagen, Mild Cleansing Agents, Conditioning Agents, Moisturisers, Fragrance, Preservatives.
Formulated to strengthen, hydrate, and repair hair from root to tip.
The JUSTK Nourishing – Keratin & Collagen Shampoo 300ml is available now at Kess Hair & Beauty Online Store, New Zealand’s trusted destination for premium haircare and beauty essentials. Enjoy fast shipping, secure checkout, and authentic JUSTK products. Stock is limited—revitalise your hair with this nourishing keratin‑collagen formula today.
Yes — it is ideal for coloured and chemically treated hair.
Yes — keratin smooths the hair cuticle, reducing frizz and flyaways.
Yes — the formula is gentle enough for regular use.
Yes — it enhances moisture and reduces breakage in curls.
The formula is designed to be gentle; check the bottle for specific ingredient details.
No — it cleanses effectively while maintaining balanced hydration.
Yes — it is suitable for all genders and hair types.
Yes — keratin and collagen strengthen the hair fibre to reduce breakage.
Yes — it supports and prolongs the effects of keratin treatments.
It has a pleasant, salon‑quality fragrance that is not overpowering.
Great service and super quick delivery
I just loved this product. My hair used to be so dry and damaged but after applying this oil it is looks good. It’s everyday wear. Either it’s party or what ever function it’s a must I should wear it. Best part is that it doesn’t make ur hair look oily but gives more natural looks. It smells good as well.
Great products
Will definitely purchase this again. Smells so nice too.
Always great service with this company. Orders always arrive promptly and prices are very good. The Joico Finishing Spray is excellent and I use it all the time on my very fine flyaway hair!
Best products ever. Fresh, moist and dazzling.
A lovely free gift and good to use
Excellent product it does what it says it will do. I have tried similiar products and none compare. This is the third time I have brought this product and will most definitely buy again.
I have been using this for a few years now and have no intention to change. Gives my fine hair a bit more body without the stickiness. Makes crunch drying easy. Love it.
Excellent website, great communication and efficient delivery.
Very swift delivery, & quality products, these make excellent Xmas gifts.
I love this hair oil, it is my third one, leave my hair soft and improved my ends
Excellent condition and excellent product
Beautiful free gift. Thank you
Excellent condition. Free gift is amazing too
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