





Highlights
- Good for: Heat & sun protection
- Good for: Thinning & hair loss
- Texturizing
Details & care
A silicone free, color safe leave-in conditioner and styling primer that instantly hydrates, detangles, locks in 24 hr frizz control, enhances shine, reduces breakage and protects hair from heat up to 450° F/ 232° C for silkier, stronger, healthier hair.
- Clinically Proven heat protection and 24 hour frizz control after just one use
- Shields hair from thermal damage up to 450°F / 232°C.
- Requires 93% less combing force on wet hair and 76% less on dry hair, helping prevent stress and breakage.
- Delivers 75% reduction in frizz instantly, maintaining 73% frizz control after 24 hours in 80% humidity.
- Provides 68% less breakage with heat styling and 67% overall breakage reduction.
- * Based on the results of independent tress tests conducted after single application of NuProtect™ Leave-In Primer
- Item #11208006
Shipping & returns
Free shipping—all the time. Learn more about our shipping & returns policies.
This item has a different return policy. Items sold and shipped by NULASTIN can be returned by mail or to a Nordstrom store within 90 days of when the item shipped and must be in new condition, with tags attached. We can’t accept returns for this item at Nordstrom Rack.
Gift options
Choose your gift options at checkout. Some items may not be eligible for all gift options.
Delivery
- Email gift message (free)
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Most helpful positive review
Feb 18, 2026
The best!!
[This review was collected as part of a promotion.] I love my Leave in primer!! It leaves my hair feeling smooth and soft ready for styling! It is light weight on my fine hair yet does exactly what it says!!! 5 stars!!!
Iammindy1
Reposted from NULASTIN
NULASTIN response
Hi Mindy, thank you for the positive review about our new Leave-In Primer! We're so glad to hear that it's exceeding your expectations.
Most helpful critical review
Jan 26, 2026
Not great
This doesn't seem to do anything for my hair. It did not improve frizz or softness. I would not recommend this for fine hair.
Anonymous
Verified purchase
Reposted from NULASTIN
NULASTIN response
Hi Kara, we're sorry that the product wasn't a fit for you. If you'd like to take advantage of our Performance Guarantee, please reach out to our team.
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Current reviews don’t mention any.Sort by Most Helpful
Color
Iammindy1
Reposted from NULASTIN
Feb 18, 2026
The best!!
[This review was collected as part of a promotion.] I love my Leave in primer!! It leaves my hair feeling smooth and soft ready for styling! It is light weight on my fine hair yet does exactly what it says!!! 5 stars!!!
NULASTIN response
Hi Mindy, thank you for the positive review about our new Leave-In Primer! We're so glad to hear that it's exceeding your expectations.
Anonymous
Reposted from NULASTIN
Verified purchase
Feb 11, 2026
Fabulous!
I love how smooth my hair feels after using this spray. I have noticed less hair fall after washing my hair and after blow drying.
NULASTIN response
Hi Melissa,
That is great news! We are so glad to hear that you are loving it and how it is working with your hair!
Georgie
Reposted from NULASTIN
Verified purchase
Jan 31, 2026
Nice Primer
I like this product so far. It is a little difficult to say why or why not you like a certain hair primer. If I know it’s protecting my hair from certain environmental stresses as this one is supposed to do, then I know I like it.
NULASTIN response
Hi Georgie! Thank you so much for leaving us a review. We're thrilled you love our Leave in Primer and know your hair will continue to thank you for using as well!
Sam
Reposted from NULASTIN
Verified purchase
Jan 27, 2026
Fabulous
This product does what it claims! My 58 year old hair feels and looks amazing. I will be purchasing other products in this line for sure!
NULASTIN response
Hi Sam, thank you for the 5-star review! We are thrilled to hear that our new Primer has exceeded your expectations, and thank you for giving it a try.
Anonymous
Reposted from NULASTIN
Verified purchase
Jan 26, 2026
Not great
This doesn't seem to do anything for my hair. It did not improve frizz or softness. I would not recommend this for fine hair.
NULASTIN response
Hi Kara, we're sorry that the product wasn't a fit for you. If you'd like to take advantage of our Performance Guarantee, please reach out to our team.
MissyMe
Reposted from NULASTIN
Verified purchase
Jan 25, 2026
Disappointed.
This stuff did not live up to all its social media hype for me. I have fine, color treated, wavy/frizzy hair & so I really wanted something that would tame the frizz & smooth out the waves for blow dry style with a round brush. All this did was add bulk & way down my hair making it feel kinda gooey. I thought maybe I just used too much - but even using less did not change much. It's a thick creamy spray & it doesn't disperse all that well. More like a direct squirt. So that does not help matters. I tried just spraying into my hand & mixing with a smoothing oil & the next day my hair just looked like it needed to be washed. Greasy in areas. I wish I had never bought this stuff. It's just sitting on my vanity taking up valuable space. I would say maybe if you have THICK hair or an abundance of hair this might be more for you. But keep your expectations realistic. It's definitely NOT a miracle worker. I like DreamCoat by WOW & Frizz Shield by Moroccan Oil WAYYY better & if you want to really be impressed... Get "epres" Bond repair + their shampoo & conditioner to use after treatment. And THEN you'll be like Hallelujah! Amen! This is coming from product fiend who buys/tries it all! + have worked in the Industry.
NULASTIN response
Hi MissyMe! We are so sorry to hear that our Leave in Primer was not a good fit! Feel free to email us at customercare@nulastin.com so that we can further assist you.
