This Leave-In Hair Mask Fixed My Damaged Strands In Just 2 Minutes
Francesca is the Beauty Editor at Adore Beauty. With a background in glossy mags and bylines in publications like Marie Claire, ELLE and BODY+SOUL, Francesca has turned her love of beauty into a career. Whether she's decoding buzzy ingredients or road testing lip glosses (so. many. glosses.), her approach to beauty is equal parts glamour and highly-considered.
Being a Beauty Editor, I'm well versed in beauty lingo - and have heard buzzwords like 'fast-acting' often thrown around like confetti. But a leave-in treatment that's clinically proven to repair and strengthen hair by up to 97% in just two minutes? Yep, that's fast-acting. And got my attention, immediately.
Nak's new K.Revive Peptide Leave-In Mask is designed to target damage from heat, bleach, colour and chemical treatments - fast. It's equal parts science and sensorial payoff.
Here's everything you need to know about the new formula and why I'm already a fan.
Nak Hair K.REVIVE Peptide Leave-In Power Mask Review
Fast Facts:
- Leave-in treatment for damaged hair
- Works in just 2 minutes
- Restores strength, shine and smoothness
- Formulated with peptides, vegetable proteins and amino acids
- Vegan and cruelty-free
- Australian-made
The formula is built around Trichopeptide Science, Nak’s patented blend of 24 amino peptides and plant extracts that work at a molecular level to restore the strength and integrity of damaged hair. If your strands are feeling thin, over-processed or dulled by heat styling, this is designed to get underneath the surface (literally) and rebuild the fibre from within.
Key ingredients include:
- Biomimetic Peptides - which help reinforce the protein structure of the hair and boost keratin production over time. Think of it as strengthening your strands from the inside out; not just masking the damage.
- Hydrolyzed Vegetable Proteins - which smooth the outer cuticle layer and add that soft, glossy finish. This is what helps your hair feel polished, not fluffy or frayed.
- Amino Acids like Arginine and Lysine - deliver hydration, flexibility and help the hair regenerate. These are key for bounce and softness; especially if your hair tends to feel brittle post-wash.
The result is hair that feels stronger, smoother and more resilient. After just one use.
Why I love it:
As someone with very dry (and frizzy) strands, a conditioning leave-in has been a mainstay in my routine for years, but this particular formula seemed to go a notch above.
A silky medium weight, the cream formula sheered out into my damp strands with ease. Application was quick, seamless and I was able to coat strands evenly. Once blow-dried in, the formula was completely undetectable - no crunch or stiffness.
First wafts were fresh and perfumed, but I did find as I worked the product into strands, the scent did throw a little more chemical (not uncommon with protein-heavy formulas). This did dissipate once dried in.
What stood out the most? The strength. I expected softness (which I got), but I didn’t expect my ends to feel as thick or resilient afterwards. There was a notable difference in my hair's texture - more dense and smoothed.
My ends in particular (which are the first to show signs of damage) are usually frayed and unruly, but this coaxed over strands beautifully and gave a more uniformed, smooth finish. There wasn't an overt shininess with this formula but it did leave my hair silky, healthy and a little more lustrous.
The Verdict:
If your hair is dull, chemically treated, or just feeling flat-out fried, this is worth the shelf space. It’s the rare kind of formula that feels weightless but delivers visible results - instantly.
And while it's a leave-in, it doesn’t demand a big routine change. Just apply to towel-dried hair, style as usual and you’re done. It’s simple, fast and actually effective.
How to use:
Shampoo hair as usual, but skip your usual conditioner. Towel dry hair, then apply mask to mid-lengths and ends. Leave in for 2 minutes, then comb through and style hair as usual - no rinsing needed.
Chasing glossy strands? Read up on our favourite products and tools with the below Beauty IQ articles:
