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Deal.ai › K18 › Top-Rated Hair Care
K18
K18 HeatBounce Conditioning Heat Protectant

K18 HeatBounce Conditioning Heat Protectant

4.5(8 ratings)

Best price now

$37.19at FragranceNet.comChecked 1 h ago

23% under what the other stores charge

Compared across 14 stores. Prices are checked against each store and labelled with when.

Visit FragranceNet.com
K18 discount codes →

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Price facts

  • Best price today: $37.19 at FragranceNet.com (checked Nov 12, 2026).
  • Checked at 14 stores.

Our take on the K18 HeatBounce Conditioning Heat Protectant

K18 HeatBounce is a leave-in spray that shields hair from heat up to 450°F while detangling and conditioning. Its resilicore heat-shielding technology is claimed to work inside the cortex, cutting breakage by up to 85% after blow drying. It suits anyone who blow dries or flat irons regularly, including people with extensions. Against typical silicone-based heat sprays, it is positioned as a treatment rather than a coating, and it is lightweight enough for fine hair.

Best forRegular blow-dry and flat-iron usersFine or easily weighed-down hairPeople with extensions or color-treated hairAnyone wanting conditioning and heat protection in one step
Pros
  • Protects up to 450°F
  • Lightweight, no heavy residue
  • Detangles and conditions as it protects
  • Works on all hair types and extensions
  • Can be used on towel-dried or dry hair
Cons
  • Spray format can be easy to over-apply
  • Results depend on using it before every hot-tool session
  • Not a replacement for a dedicated deep conditioner

K18 HeatBounce Conditioning Heat Protectant prices at every store

  • Bealls FloridaNew

    In stock

    $36.99+ $10.99 shippingChecked 1 h ago
    Visit Bealls Florida
  • TargetNew

    In stock

    $48.00Free shippingChecked 1 h ago
    Visit Target
  • WalmartNew

    In stockSold by Beauty ProReturns: Sold by a Walmart Marketplace seller; returns go to the seller under the seller's returns policy.

    $42.99+ $7.00 shippingChecked 1 h ago
    Visit Walmart
  • SephoraNew

    In stock

    $48.00+ $6.95 shippingChecked 1 h ago
    Visit Sephora
  • K18 HairNew

    In stock

    $48.00+ $7.00 shippingChecked 1 h ago
    Visit K18 Hair
  • Kohl'sNew

    In stock

    $48.00+ $8.95 shippingChecked 1 h ago
    Visit Kohl's
  • FragranceNet.comNew

    Availability unknown

    $37.19Checked 1 h ago
    Visit FragranceNet.com
  • WalmartNew

    Availability unknownSold by FRESH DROPLETS

    $47.90Checked 1 h ago
    Visit Walmart
  • Salon ValeriaNew

    Availability unknown

    $48.00Checked 1 h ago
    Visit Salon Valeria
  • Planet BeautyNew

    Availability unknown

    $48.00Checked 1 h ago
    Visit Planet Beauty
  • The StudioNew

    Availability unknown

    $48.00Checked 1 h ago
    Visit The Studio
  • Cloud 10 BeautyNew

    Availability unknownShips from abroad · duties may apply

    $50.88Checked 1 h ago
    Visit Cloud 10 Beauty
  • SelfridgesNew

    Availability unknownShips from abroad · duties may apply

    $58.00Checked 1 h ago
    Visit Selfridges
  • HarrodsNew

    Availability unknownShips from abroad · duties may apply

    $60.00Checked 1 h ago
    Visit Harrods

K18 HeatBounce Conditioning Heat Protectant price history

Lowest price we've seen: $36.99 on Nov 13 at Bealls Florida. Tracked across 13 stores since Nov 13.

About the K18 HeatBounce Conditioning Heat Protectant

K18 HeatBounce Conditioning Heat Protectant is a leave-in formula that shields hair from heat up to 450°F. It also detangles, softens and conditions. It is made with resilicore™ heat-shielding technology, which penetrates into the hair's cortex to fortify it from within.

The formula is lightweight and leaves no heavy residue. It reduces breakage by up to 85% after blow drying and leaves hair tangle-free, smooth and resilient. It works on all hair types and textures, including extensions.

Use it on towel-dried hair before blow drying, or on dry hair before styling with hot tools.

Size
4 oz / 118 ml
Type
Leave-in conditioning heat protectant
Heat protection
Up to 450°F
Technology
resilicore™ heat-shielding technology
Hair types
All hair types and textures, including extensions
How to use
On towel-dried hair before blow drying, or on dry hair before hot-tool styling

Specifications

size
4 oz / 118 mlSource

Questions and answers

How do I use K18 HeatBounce?
Spray it on towel-dried hair before blow drying, or on dry hair before using hot tools. Comb through, then style as usual.
Does it work on fine hair?
Yes. The formula is lightweight and leaves no heavy residue, so it suits fine hair as well as thick or textured hair.
Can I use it on hair extensions?
Yes. K18 says it works on all hair types and textures, including extensions.
Is it a heat protectant only, or does it condition too?
It does both. It detangles and softens while shielding hair from heat up to 450°F.
How is it different from a silicone heat spray?
K18 positions it as a treatment that works inside the hair cortex rather than a surface coating, with a claimed reduction in breakage of up to 85% after blow drying.
How much should I apply?
A light, even mist is enough. Over-applying can leave hair feeling coated, so start sparingly and add more if needed.
Where is the K18 HeatBounce Conditioning Heat Protectant cheapest?
At FragranceNet.com, for $37.19, 23% under what the other stores charge, as of our latest check.
What do buyers say about the K18 HeatBounce Conditioning Heat Protectant?
Rated 4.5 out of 5 from 8 ratings.
Where can I buy the K18 HeatBounce Conditioning Heat Protectant?
13 stores we checked sell it, including Walmart, Bealls Florida, FragranceNet.com, Sephora, Target.

Stores we've priced the K18 HeatBounce Conditioning Heat Protectant at

  • FragranceNet.com deals and prices
  • Kohl's deals and prices
  • Sephora deals and prices
  • Target deals and prices
  • Walmart deals and prices

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