Garnier Fructis Diamond Sleek Shine-Coat Smoothing Spray

Average rating includes incentivized reviews
Frizzy, dull hair? Diamond Sleek gives you up to 100 Hours of Frizz-Free Sleek. Diamond-Like Shine.

Heat Activated. Activate Diamond Sleek formula with a blow dryer, don't worry Diamond Sleek has 450°F heat protection.

Lightweight. A non-greasy & non-sticky formula Infused with up to 8% Vegan Keratin Smoothing Complex and Argan Oil.

Heat Protection. Shields hair against temperatures up to 450°F.

Smoother and Shinier. Gives you up to 3X Smoother hair* and up to +38% light reflection**.

At a Glance

What it is: Heat-activated anti-frizz heat protectant spray
Who it’s for: Frizzy, dry, dull hair; all textures (straight–coily)
What it does: Up to 100 hours frizz control; up to 3X Smoother hair*; up to +38% light reflection**
Heat protection: Shields up to 450°F
Key ingredients: Vegan Keratin Smoothing Complex (hydrolyzed proteins) + Argan Oil
Texture: Lightweight mist; non-greasy, non-sticky
Size: 4.6 fl oz (136 mL)
Ethics: Vegan formula; Cruelty Free; bottle (no cap) 100% recycled plastic

*vs a non-conditioning shampoo
**vs unwashed hair

size

$8.99 MSRP

Frizzy, dull hair? Diamond Sleek gives you up to 100 hours of frizz-free sleek and diamond-like shine. This heat-activated formula shields up to 450°F and leaves hair up to 3X Smoother* and with up to +38% light reflection**, non-greasy mist infused with up to 8% Vegan Keratin Smoothing Complex and Argan Oil. Learn more on this page for Garnier Fructis Diamond Sleek Shine Spray.

*vs a non-conditioning shampoo
**vs unwashed hair

• Up to 100 Hours of Frizz-Free Sleek.
• Diamond-Like Shine.
• Shields hair against temperatures up to 450°F.
• Shield and smooth hair to reduce frizz even in high humidity.
• Lightweight texture, non-greasy, non-sticky.
• Infused with up to 8% Vegan Keratin Smoothing Complex and Argan Oil.

• Heat-activated frizz control: Up to 100 hours sleek, frizz-free hair
• Heat protection: Shields hair up to 450°F
• Smoother and shinier: Up to 3X Smoother hair*, up to +38% light reflection**
• Lightweight feel: Non-greasy, non-sticky mist
• Key ingredients: Up to 8% Vegan Keratin Smoothing Complex + Argan Oil
• Hair types: For frizzy, dry, dull hair; suitable for all hair textures
• Texture: Fine mist spray
• Size: 4.6 fl oz (136 mL)
• Ethics: Approved Cruelty Free; vegan formula; bottle without cap made of 100% recycled plastic

*vs a non-conditioning shampoo
**vs unwashed hair

1. Wash and hydrate hair with Sleek & Shine shampoo and conditioner.

2. Towel-dry until hair is damp.

3. Spray Diamond Sleek Anti-Frizz Heat Protectant evenly throughout damp hair.

4. Blow-dry in sections using a brush to create tension; heat activates the formula. For flat-ironing, ensure hair is fully dry before using hot tools (max 450°F).

Key Ingredient

Garnier Color Match logo

Argan Oil

Used for centuries in skincare and haircare, argan oil is an extremely rich golden liquid with anti-inflammatory and anti-aging effects. Quickly absorbed, this transformative ingredient unleashes nutrients, fatty acids, and vitamin E, soothing and deeply hydrating the skin, and restoring shine to dull hair.

Read More

• Argania Spinosa Kernel Oil → Common name/function: Argan Oil — adds shine, smooths frizz
• Hydrolyzed Corn Protein; Hydrolyzed Soy Protein; Hydrolyzed Wheat Protein → Common name/function: Vegan Keratin Smoothing Complex — helps smooth, strengthen feel
• Polysilicone-29 → Common name/function: Heat/anti-frizz polymer — helps protect up to 450°F, smooths
• Glycerin → Common name/function: Humectant — draws moisture, adds softness
• Lactic Acid → Common name/function: pH adjuster — helps maintain formula performance
• Phenoxyethanol → Common name/function: Preservative — protects formula integrity

Full ingredient list: AQUA / WATER / EAU • GLYCERIN • DIPROPYLENE GLYCOL • PEG-60 HYDROGENATED CASTOR OIL • LAURETH-4 • ARGANIA SPINOSA KERNEL OIL • STEARAMIDOPROPYL DIMETHYLAMINE • SODIUM HYDROXIDE • ISONONYL ISONONANOATE • HYDROLYZED CORN PROTEIN • HYDROLYZED SOY PROTEIN • HYDROLYZED WHEAT PROTEIN • CAPRYLYL GLYCOL • LACTIC ACID • POLYSILICONE-29 • HEXYL LAURATE • PHENOXYETHANOL • PARFUM / FRAGRANCE (F.I.L. T70073267/1).

Diamond-Like Shine for Your Hair

Get Diamond-Like Shine, that Shields and smooth hair to reduce frizz even in high humidity.

Fructis diamond sleek shine-coat smoothing spray - Garnier

Is Diamond Sleek right for my hair type and routine?

• Best for: Frizzy, dry, dull hair; fights humidity
• Hair textures: Works on straight, wavy, curly, and coily hair
• Styling routines: Ideal before blow‑drying and hot tools up to 450°F
• Feel: Lightweight, non‑greasy, non‑sticky with a fine mist

Smoothing spray for sleek hair for up to 100 hours - Garnier

Up to 100 Hours of Frizz-Free Sleek. Diamond Like Shine

  • Shields hair against temperatures up to 450°F.
  • Shield and smooth hair to reduce frizz even in high humidity.
  • Lightweight texture, non-greasy, non-sticky.
  • Infused with up to 8% Vegan Keratin Smoothing Complex and Argan Oil.

Vegan Keratin Smoothing Complex and Argan Oil

Infused with up to 8 percent Vegan Keratin Smoothing Complex and Argan Oil, to shield and smooth hair to reduce frizz. Lightweight texture, non-greasy, non-sticky.

Argan oil hair spray for shine - Garnier
Keratin hair spray for smooth hair - Garnier

Heat Activated Formula

Activate Diamond Sleek formula with a blow dryer, don't worry Diamond Sleek has up to 450°F heat protection.

Dimond Sleek Shine-Coat Smoothing Spray

  • 100 hours of polished shine
  • 100 hours of sleek frizz control
  • Up to +38% light reflection*
  • Up to 3X Smoother hair**


*vs unwashed hair
**vs a non-conditioning shampoo

Anti frizz hair spray for shiny hair - Garnier

Discover the Fructis Sleek & Shine Collection

Maximize frizz control with the Fructis Sleek & Shine system of hair care products for long-lasting sleek hair. From daily shampoo and conditioners and smoothing hair treatments, layer and combine Sleek & Shine products at all steps of your routine to experience sleek & smooth hair.

Garnier Sleek & Shine Styling: Find Your Perfect Match

Garnier Sleek & Shine Styling: Find Your Perfect Match
When to Use When to Use
Before blow-drying and heat styling on damp hair
Before styling or in between washes on your scalp on damp or dry hair
Before using heated tools as a first step after washing on damp, towel-dried hair
Before styling on slightly damp or dry hair, work from ends upward
After styling as a final step on dry hair
Heat Protection Heat Protection
Best for Hair Types Best for Hair Types
All textures needing heat protection and smoother, shinier hair
All hair types needing frizz repair, added shine, and nourishment
All hair types needing to seal in smoothness and shine for a long-lasting sleek look
All hair types needing up to 24 hours of frizz resistance without weigh-down
All hair types needing soft, glossy, and manageable hair styling
Key Ingredient Key Ingredient
Argan Oil
Argan Oil
Argan Oil
Argan Oil
Argan Oil
Argan Oil
Argan Oil
Argan Oil
Argan Oil
Argan Oil
Hair Care Routine Quiz

Hair Care Routine Quiz

Discover your personalized Garnier hair care regimen.

Fructis Diamond Sleek Anti-Frizz Heat Protectant FAQs

What does Sleek & Shine Anti-Frizz Heat Protectant do?

Sleek & Shine Anti-Frizz Heat Protectant is formulated to smooth for long-lasting frizz control while boosting shine and protecting against heat. It harnesses the powers of argan oil and vegan keratin to give your hair up to 100 hours of sleek styling polish.

Should I use Sleek & Shine Heat Protectant on damp or dry hair?

For best results, you should use Sleek & Shine Anti-Frizz Heat Protectant on damp hair before blow-drying. It is formulated to activate with heat to provide maximum frizz control.

Does Sleek & Shine Heat Protectant work for all hair types?

Sleek & Shine Heat Protectant hair shine spray works for all hair types and textures, and is especially effective on frizzy and unruly hair. It’s one of the most versatile anti-frizz hair sprays because it suits all styles, from straight and wavy to curly and coily.

How long does Sleek & Shine Anti-Frizz Heat Protectant last?

Sleek & Shine Anti-Frizz Heat Protectant lasts up to 100 hours for sleek frizz-free hair. Even better, it stands up to even the most humid conditions.

Does Sleek & Shine Heat Protectant shield against the heat of flat irons and blow dryers?

The extreme heat from styling tools like flat irons, curling wands, and blow dryers is no match for Sleek & Shine Heat Protectant because it shields your hair against temperatures up to 450°F. To prevent breakage and damage, we recommend applying this smoothing hair treatment right before using any hot tool.

Garnier Commits to Greener Beauty

Reviews

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3 reviews with 1 star.

Overall Rating

4.5

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Average Customer Ratings

Filter Reviews

1 to 8 of 1405 Reviews .
1 – 8 of 1405 Reviews
Review 1
Votes 0

Sleeker hair!

3 days ago
This helped me sleek my hair so well last time I straightened it! I have 3cish curls which are difficult to straighten sometimes and I feel like this product made my hair so much smoother than my regular routine. I definitely will be working this into the rotation for my next straighten!

Originally posted on influenster.com

Reviews 2
Votes 0

Adds life back into dull hair

4 days ago
I have dry hair and this product helped bring it back some life! The most was nice and fine, not overpowering scent, left my hair smooth and silky, not too sticky of residue, and easy to use!

Originally posted on influenster.com

Review 1
Votes 0

Didn't disappoint!

12 days ago
I'm fascinated by Garnier's quality, especially given its affordability. When I applied this spray to my wet hair, I instantly noticed how lightweight it is (and its subtle, fresh fragrance). The formula looks and feels almost like water, which I found strange because I'm used to heat protectant products being oily and opaque. After coating my hair with some spritz, my wavy hair instantly fell flat; it was impressive how quickly it smoothed out my hair without any heat. Thanks to the lightweight formula, I didn't feel any change in my hair's texture. That was nice because my hair strands are thin, and it's easy to apply excess product. Since I was in a rush, I used a hair dryer on a low setting, which allowed my hair to dry completely before I used the straightener. It had very nice results on my hair anyway; the after picture was taken the day after I styled my hair!! I live in a scorching hot, humid climate, so I'm amazed it still looks this good.
  • Review photo 1.
  • Review photo 2.
  • Review photo 3.

Originally posted on influenster.com

Review 1
Votes 0

Love how it keeps frizz at bay!

13 days ago
Love how easy it is to use this product, it really helps my hair with frizzy ends. I like to use it only on my ends since it hydrates my hair at the same time and the texture is non greasy as well. It absorbs into my hair pretty well and lasts all day.
  • Review photo 1.

Originally posted on influenster.com

Review 1
Votes 0

New favorite blowout serum!

20 days ago
My fair is fine and wavy/curly, so reducing frizz while preventing product buildup is pretty difficult. This serum worked great for me as a blowout serum - my hair was very shiny and smooth, and the style held all night. Lovely packaging as well, and only needed a small amount.
  • Review photo 1.
  • Review photo 2.

Originally posted on influenster.com

Review 1
Votes 0

Love

24 days ago
Love this stuff! I struggle with very frizzy hair , especially on the humid days that are frequent in Arkansas , this spray helps tame it a lot and I use it daily
  • Review photo 1.

Originally posted on influenster.com

Review 1
Votes 0
Age:25-34
Gender:Female
Hair Type:Frizzy or Thick
Hair Color:Brown

Better than Color Wow dreamcoat

28 days ago
I really enjoyed using this product. It has a refreshing scent. I bought the color wow dreamcoat a couple years ago and it did nothing for my hair and was pretty disappointed and honestly expected this to be the same. I liberally sprayed all over my hair and then did a rough downward direction dry and then with tension using the round brush attachment with my conair digitalaire. While it did not give the pure reflective shine, my hair was noticeably smoother than when I normally blow dry it and did not have that "frizzy straight" poof afterwards that usually happens. I received this product for free from Topbox Marketing for testing and review purposes.

Yes, I recommend this product.

Helpful?
Reviews 4
Votes 0

Wow! Great product!

a month ago
I have straight hair but I do struggle with frizzy hair a lot. Its always a pain when I go out when its windy out because I know for a fact my hair will be going everywhere. Even though I dont use this spray as heat protectant, I enjoy this product for its frizz prevention. It has a slight floral scent, not overbearing at all. Definitely recommended!
  • Review photo 1.

Originally posted on influenster.com

1 – 8 of 1405 Reviews

Questions

1 - 1 of 1 Question

Q: Do you apply the Garnier Fructis Diamond Sleek Hair Shine Spray before or after styling gel (such as the Garnier Curl Scrunch Controlling Gel)?

a month ago
1 Answer
  • A: Hi AJayMc, We suggest you Spray Diamond Sleek Anti-Frizz Heat Protectant evenly throughout damp hair before another styling gel. Thanks for your interest in Garnier!
    a month ago
    Helpful?
Alt
4.6 fl.oz