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
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.
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.
Scent: Crisp apple, sun-ripened strawberry, and juicy melon; a vibrant, fruity scent.
*vs a non-conditioning shampoo
**vs unwashed hair
Benefits
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• 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.
Key Features
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• 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
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).
Ingredients
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• 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
Get Diamond-Like Shine, that Shields and smooth hair to reduce frizz even in high humidity.
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
Diamond Sleek for Dazzling Shine
Transform frizzy, dull hair into a masterpiece of sleekness and diamond-like shine with Garnier Fructis Diamond Sleek Shine Spray, designed to provide up to 100 hours of frizz-free sleek and brilliant light reflection.
DIAMOND-LIKE SHINE & HEAT PROTECTION
Activate ultimate sleekness and up to 38% light reflection* with blow dryer heat, all while shielding your hair from damage with 450°F heat protection for a dazzling, Diamond-like finish.
*vs unwashed hair
UP TO 100-HOUR FRIZZ-FREE SLEEK
Conquer frizz, even in high humidity, and achieve up to 3X smoother* hair with our advanced formula featuring Vegan Keratin Smoothing Complex, locking in sleekness for up to 100 hours.
*vs a non-conditioning shampoo
LIGHTWEIGHT & CARING FORMULA
Infused with Argan Oil and our Vegan Keratin Smoothing Complex, this lightweight, non-greasy spray is a vegan formula, approved Cruelty Free, and comes in a bottle made of 100% recycled plastic.
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
How to Create Your Perfect Frizz-Free Shine Routine
Your sleek shine starts in the shower. Build your smooth foundation with our Sleek & Shine Shampoo & Conditioner- created from gentle, frizz-fighting formulas enriched with Argan Oil to deeply nourish and prep hair for styling.
When:Use this shampoo and conditioner on every wash day to tame frizzy, dry hair. Formulated to cleanse gently while locking in moisture, it provides the perfect base for humidity resistance.
Tips for you:
Focus shampoo on the scalp to remove buildup, then apply conditioner from mid-lengths to ends. Leave on for 2-3 minutes before rinsing with cool water to seal the cuticle and boost shine.
Lock in up to 100 hours of sleekness and intense shine. These lightweight leave-in treatments protect against heat and block out humidity.
When:Mist the Diamond Sleek spray evenly on damp or dry hair before using hot tools to protect up to 450°F and activate Diamond-like shine. Then, apply the serum to damp or dry hair whenever you need to tame frizz.
Tips for you:
A little goes a long way with the Anti-Frizz Serum—start with one pump, and apply to either damp hair before styling, or to dry hair as a finishing step to seal ends, tame frizz, and protect against humidity. For Diamond Sleek, spray sections evenly before blow-drying or flat-ironing to maximize light reflection and get a Diamond-like hair finish.
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.
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1 to 8 of 1412 Reviews .
1 – 8 of 1412 Reviews
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ClarissaC
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Review 1
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4 out of 5 stars.
Effective
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a month ago
Garner Frutis Diamond Sleek Shine Spray for Frizzy, Dry Hair is effective at reducing frizz. Since I have shoulder length, thick hair, I always want the best products to protect it. The spray is lightweight. It doesn’t leave a sticky feeling or residue behind.
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EmilyM
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Review 1
Vote 1
5 out of 5 stars.
Wow
Received an incentive
a month ago
Garnier Fructis Diamond Sleek Shine Spray had my hair looking great! Smooth, shiny and frizz free!! I have course hair, and this made it feel silky soft.
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TaylorK
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Reviews 2
Votes 0
5 out of 5 stars.
Love
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a month ago
I love this product! It makes my hair so shiny and smooth. Very lightweight, you use it in damp hair and it works with heat so you blow dry and style your hair as usual and boom beautiful looking and smelling hair!
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ilyssaD
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Review 1
Vote 1
5 out of 5 stars.
Fructis Frizz Spray
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a month ago
This product was easy to apply and use. I don’t think it was able to really control the frizz for long unfortunately, but it did work well in the beginning!
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HanneD
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Review 1
Votes 0
4 out of 5 stars.
Helps with frizz and smells great but leave hair tacky feeling for a while
Received an incentive
2 months ago
I LOVE the smell of this product - it smells like the brand’s classic fruity scent. I lightly spray it all over my hair (wet or dry) to help manage frizz. It does leave your hair with a slight tacky feeling (similar to a heat protectant spray) for a while but that goes away with time.
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CarolinaM
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Review 1
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3 out of 5 stars.
I don’t love it
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2 months ago
This product has not been one of my favorites! I didn’t see any significant change and when I don’t like a product at first it gives me a hard time to continue using it! But it’s missing! It smells good and I like this particular brand because it’s easy to get in convenience stores but it’s not for me!
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Response from Garnier:
2 months ago
Garnier
Hello, Thank you so much for taking the time to share your experience with Diamond Sleek Shine-Coat Smoothing Spray. We will share your comments directly with our product team. Your insights help us improve and serve you better. Thanks for letting us know!
JessicaT
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Review 1
Vote 1
5 out of 5 stars.
Perfect for humid days especially ! You can thank me later!
Received an incentive
2 months ago
Perfect hair on a hot humid day, said no one ever! Until I found it to be true, that is if you’re using what I use.which is Garnier Fructis diamondsllek shine spray that specifically made for those like me and you that has frizzy hair. No more frizzy hair days for me, and you too! The bottle is of good size to get many uses out of. It’s not sticky and dries easily, I use it as my last step in my haircare routine. it doesn’t weigh down my curls like other products I’ve tried before. Nope this one does great.
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JenayeC
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Review 1
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5 out of 5 stars.
Sleeker hair!
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3 months 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!
Q: Hello, I just purchased this product, I realized that it is heat activated, but I don’t use blow dryer. My question is- will it work without using any heat device, just applied alone and dry naturally?
Karo14 days ago
0 AnswersAnswer this Question
Q: Puedo aplicarme el Diamond sleek y el heat activated serum con el pelo seco para luego pasarme la plancha?
PennyLane2 months ago
1 AnswerAnswer this Question
A: Hello, Yes, for flat-ironing, ensure hair is fully dry before using hot tools. Heat activates the formula. Thanks for your interest in Diamond Sleek Shine-Coat Smoothing Spray.
GarnierConsumerCare2 months ago
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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)?
AJayMc4 months ago
1 AnswerAnswer this Question
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!