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Hask Biotin Boost Thickening 5-in-1 Leave-in Spray, 6 fl oz

Key item features

  • Best for Fine, thin hair
  • Thickens and adds body 
  • Heat protection up to 450°F/232°C
  • Controls frizz and adds shine 
  • Prevents breakage 
  • Detangles and moisturizes
  • Biotin, also known as vitamin B-7, works to strengthen strands and improve overall hair quality, including thickness and shine
  • Coffee Extract helps stimulate the root to promote thicker-looking hair
  • Collagen is known to repair and reverse split ends as well as deliver long-lasting volume
  • Tri-Level Thickening Complex to volumize, strengthen and fortify
  • Unisex
  • Fragrance: Notes of eucalyptus and white florals
  • Free of sulfates, parabens, phthalates, silicone, gluten, drying alcohol and artificial colors
  • Cruelty free and color-safe
Current price is Now $6.97
You save $1.02
was $7.99
$1.16/fl oz
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Customer ratings & reviews

4.4 out of 5 stars
stars1,041 ratings412 reviews
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Reviews summary

Pros

  • : Helps with detangling and adds hair thickness.
  • : Prevents heat damage when styling with heat tools.
  • : Provides noticeable thickness to hair.
  • : Reduces or eliminates frizz for smoother hair.
  • : Offers good value at this cost.

Neutral

  • : Can be pleasant, but also strong and overpowering.
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Showing 1-3 of 412 reviews

Jul 7, 2025
Walmart customer
Item details
Multipack quantity: 1
5 out of 5 stars review

Verified Purchase

feels good and definitely thickens your hair

I have used this spray several times in the past and I'm always very pleased. I also use the shampoo and conditioner by the same maker. I'm pushing 60 and my hair is getting very thin, but with this regimen I am definitely seeing a difference! Thanks a bunch! 🙂

Helpful?1P168OU342BR282043173
Apr 2, 2026
samantha
Top Reviewer
Item details
Multipack quantity: 1
5 out of 5 stars review

Verified Purchase

lightweight, smoothing, and actually works!

I’ve tried a lot of leave-in conditioners, but the HASK 5-in-1 Leave-In Conditioner Spray really surprised me—in a good way. First off, it’s super lightweight. My hair is naturally straight and fine, so a lot of products weigh it down or make it greasy, but this one doesn’t at all. It instantly makes my hair easier to comb through, especially right after washing, and I’ve noticed way less breakage over time. What I love most is how soft and smooth my hair feels after using it. It adds just enough moisture without making my hair feel heavy or coated. It also helps tame frizz and gives my hair a healthier, more polished look. The smell is another bonus—it’s light, clean, and not overpowering. It pairs really well with other products without clashing. Overall, this has become a staple in my routine. If you’re dealing with tangles, dryness, or just want something simple that actually improves your hair’s look and feel, I’d definitely recommend giving it a try.

Helpful?1P168OU342BR282043173
Apr 13, 2026
Carmen
Item details
Multipack quantity: 1
5 out of 5 stars review

Verified Purchase

Wonderful

This product is amazing. My 79 year old mom has been using it every day and it has helped a lot with her hair. Her hair has been growing and it’s thick. She suffered of hair loss but not anymore thanks to this amazing product. I highly recommend using this product.

Helpful?1P168OU342BR282043173