blockade
heat defense hair serum, heat protectant serum

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4.9
Rated 4.9 out of 5 stars
921 Reviews
combat against damage caused by heat styling and blow drying up to 450 degrees
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4.9
Rated 4.9 out of 5 stars
Based on 921 reviews
Reviews Summary
customers say: this serum makes hair smooth and silky without feeling greasy. The lightweight formula leaves hair shiny and soft when styling. Many reviews mention its pleasant scent and how a small amount goes a long way. While most find it effective for styling, some note it works best on damp hair before blow-drying rather than on dry hair. Reviews frequently highlight its non-sticky texture and ability to smooth frizz while maintaining body and bounce.
921 reviews
  • JB
    JoAnna B.
    Verified Buyer
    Rated 5 out of 5 stars
    9/6/25
    Amazing serum

    This serum is one of the best I have used. I use it daily to dry my hair. It makes my hair feel soft and smooth. No greasy residue!

  • SY
    Shannon Y.
    Verified Buyer
    Rated 5 out of 5 stars
    8/18/25
    LOVE

    The BEST heat protectant that I’ve used & unless someone comes out with something to top this, I’ll never use anything else!

  • RM
    Robin M.
    Verified Buyer
    Rated 5 out of 5 stars
    8/18/25
    Blockade heat defense serum

    I have tried quite a few different heat protection products but this is by far my favorite. It actually protects my hair without leaving behind a greasy residue and smells very nice but not over powering. As I am sensitive to strong fragrances. I will be purchasing this again. 🩷

  • AO
    Andrea O.
    Verified Buyer
    Rated 5 out of 5 stars
    8/7/25
    Heat protection

    Love using this on my hair before I flat iron it

  • LT
    Lorraine T.
    Verified Buyer
    Rated 4 out of 5 stars
    7/28/25
    Great!!

    I've been using this product for around 3 years now and I've consistently repurchased it every time! It doesn't make your hair greasy ( if you don't use use too much at one time) and leaves hair smelling so good and looking so shiny! One thing I'll say though is to NOT put it on DRY hair BEFORE using a flat iron...I was mislead by its directions - and have been doing that for years and I think it actually caused a lot of my heat damage ( lots of big split ends) . ONLY Use this on damp hair BEFORE BLOWDRYING !!!