Free Shipping Over $85*


Free standard shipping on orders over $85
The JUSTK Nourishing Keratin & Collagen Conditioner 300ml is a deeply restorative, smoothing conditioner designed to repair, strengthen, and hydrate dry, damaged, or chemically treated hair. Infused with Keratin to rebuild weakened hair fibres and Collagen to boost elasticity and softness, this conditioner transforms brittle, frizzy, and stressed hair into silky, manageable, and healthier‑looking strands.
Its rich, creamy formula detangles effortlessly while sealing moisture into the hair cuticle, reducing frizz and breakage. Whether your hair has been damaged by colouring, bleaching, heat styling, or environmental stress, this conditioner delivers salon‑quality nourishment with every use.
Enriched with Keratin to strengthen and repair hair
Infused with Collagen for elasticity, softness, and shine
Deeply hydrates and nourishes dry, damaged hair
Smooths frizz and reduces breakage
Detangles hair for easier styling
Ideal for chemically treated, coloured, or heat‑damaged hair
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, Brittle, Coarse Hair
Ideal For:
Hair damaged by colouring or bleaching
Hair weakened by straighteners, curlers, or blow dryers
Frizzy or coarse hair needing smoothing
Thin or fragile hair needing strength and elasticity
Anyone wanting softer, shinier, more manageable hair
Strengthens hair from root to tip
Deeply moisturises and restores softness
Improves elasticity and reduces breakage
Smooths frizz and enhances shine
Helps maintain keratin or smoothing treatments
Leaves hair silky, manageable, and revitalised
Supports long‑term hair health and resilience
This conditioner is perfect for anyone wanting salon‑quality repair and hydration at home. Keratin rebuilds the hair’s natural protein structure, while Collagen boosts moisture retention and elasticity. Together, they create a powerful restorative blend that transforms dull, damaged hair into smooth, strong, and vibrant strands. It’s the ideal follow‑up to the JUSTK Keratin & Collagen Shampoo for maximum results.
After shampooing, apply conditioner to mid‑lengths and ends.
Distribute evenly using fingers or a wide‑tooth comb.
Leave on for 2–3 minutes for deep nourishment.
Rinse thoroughly with cool or lukewarm water.
Style as usual.
Pro Tip: For extremely damaged hair, leave the conditioner on for 5 minutes before rinsing.
Keratin, Collagen, Conditioning Agents, Moisturisers, Emollients, Fragrance, Preservatives.
Formulated to strengthen, hydrate, and smooth hair while enhancing shine and manageability.
The JUSTK Nourishing – Keratin & Collagen Conditioner 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—revive your hair with this nourishing keratin‑collagen formula today.
Yes — it is ideal for coloured and chemically treated hair.
Yes — keratin smooths the cuticle, reducing frizz and flyaways.
Yes — the formula is gentle enough for regular use.
Yes — it hydrates and strengthens curls while reducing breakage.
No — it nourishes without leaving heavy residue.
Conditioners typically do not contain sulphates; check the bottle for full ingredient details.
Yes — it is suitable for all genders and hair types.
Yes — keratin and collagen reinforce weak hair fibres to reduce breakage.
Yes — it supports and prolongs the effects of keratin treatments.
It has a pleasant, salon‑quality fragrance that is not overpowering.
All over my experience was very good 👍🏻👍🏻
Worth every penny. This shampoo and conditioner brought back the softness and shine to my frequently coloured hair. I wish I bought the larger conditioner size. I will next time.
This light weight curl cream leaves my hair curly and shiny with a bit of bounce.
The NAK hydrating conditioner is FANTASTIC!! It has returned the much needed moisture to my hair turning my frizz back into curls. It feels great and smell great too!!
Amazing product for styling my curly hair. Eliminates frizz and leaves hair soft not tacky. I have been using this product for a couple of years, recommended to me by my Brazilian friend and I can’t say enough about how good it is, it smells nice too.
These are really lovely products and thank-you for the freebie soap. I have only used the shampoo and conditioner once but I could feel the immediate difference that it made to my hair. I will definitely become a repeat customer
Brought the Mini Straightener as a replacement for my original. I will be using it for my upcoming travels. Most valuable and most used.
Love this product.
I’m thrilled with my Body Shop products plus the bonus treat that came with my parcel. Thank you so much Kess Hair and Beauty.
I had experienced a lot of hair loss and very sensitive scalp due to illness, Angel rosemary shampoo is very gentle, and my hair is starting to look much better, and my scalp is feeling much better. I definitely recommend the Angel products.
This is my favourite conditioner, once again great service from Kess
It really smoothens hair in every use and hair feels lighter and soft. It also needs just a little squeeze amount of the product for each use. This is my 3rd order already and will keep using. Another great thing is it doesn't cause any substantial falling hair when shampooing
Receive our latest updates about our products & promotions.
Thanks for subscribing!
This email has been registered!