Dull-looking hair with frizz? No problem! Our Diamond Sleek Shine-Coat Smoothing Spray, with its 8% Keratin Smoothing Complex and Argan Oil, shields and smooths hair to reduce frizz even in high humidity. It works by coating the hair fibre to boost light reflection from all angles, delivering a stunning diamond-like shine that lasts for up to 100 hours*. The lightweight, non-greasy, and non-sticky texture ensures a natural feel without any weigh-down. This heat-activated formula also provides essential protection from heat styling tools, including from blow drying and straightening, up to 230°C*. For best results, use as a final step after the 3-step Keratin Sleek System. After the Shampoo, Conditioner, or Mask, apply Diamond Sleek Spray to achieve a long-lasting sleek look with incredible, polished shine. Vegan Formula**. Approved by Cruelty-Free International.
*Instrumental tests using standard shampoo + Diamond Sleek Spray
**No animal-derived ingredients or by-products
Dull-looking hair with frizz? No problem! Our Diamond Sleek Shine-Coat Smoothing Spray, with its 8% Keratin Smoothing Complex and Argan Oil, shields and smooths hair to reduce frizz even in high humidity. It works by coating the hair fibre to boost light reflection from all angles, delivering a stunning diamond-like shine that lasts for up to 100 hours*. The lightweight, non-greasy, and non-sticky texture ensures a natural feel without any weigh-down. This heat-activated formula also provides essential protection from heat styling tools, including from blow drying and straightening, up to 230°C*. For best results, use as the final step in the Garnier 3-Step Keratin Sleek System. After the Shampoo, Conditioner, or Mask, apply Diamond Sleek Spray to achieve a long-lasting sleek look with incredible, polished shine. Vegan Formula**. Approved by Cruelty-Free International.
*Instrumental tests using standard shampoo + Diamond Sleek Spray
**No animal-derived ingredients or by-products
Consumer benefits:
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Up to 100H Diamond-Like Shine: Coats the hair fibre to boost light reflection from all angles, providing your hair with a spectacular, polished shine that lasts for up to 100 hours*.
Up to 72H Frizz-Free Sleek: Our formula shields and smooths hair to reduce frizz even in high humidity, delivering a sleek, polished look that lasts for up to 72 hours*.
Heat Activated Formuila: This formula requires blow-dryer heat to activate its smoothing power and provides thermal protection from styling tools up to 230°C*, keeping your hair healthy.
Keratin & Argan Oil: Powered by an 8% Keratin Smoothing Complex and Argan Oil, this spray actively smooths the hair fibre for a sleek, and shiny result.
Lightweight & Non-Greasy: Enjoy a super sleek finish without the heavy feel. The texture is lightweight, non-greasy, and non-sticky, ensuring your hair has a natural, bouncy feel.
Instructions
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After using the Keratin Sleek routine, towel dry and spray the product liberally on damp hair. Blow-dry hair by sections with a brush, putting tension on the hair. Heat is required to activate the formula.
Ingredients
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Key Ingredient
Argan
Used for centuries in skincare and haircare, argan oil is an extremely rich golden liquid which is quickly absorbed. This transformative ingredient unleashes nourishment, fatty acids, and vitamin E, soothing and deeply hydrating the skin, and restoring shine to dull hair.
*Please be aware that ingredient lists for products in our brand are updated regularly. Please refer to the ingredient list on the product package for the most up-to-date list of ingredients to ensure it is suitable for your personal use.
341 out of 345 (99%) reviewers recommend this product
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Non-incentivised reviews
1 to 8 of 364 Reviews
1 – 8 of 364 Reviews
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Kayleigh
INCENTIVIZED
Received Free Product
Review1
Votes0
5 out of 5 stars.
Shiny hair!
INCENTIVIZED
Received Free Product
6 days ago
I received this about a month ago and wanted to use it a few times before reviewing it. The shine it gives is amazing, and makes my hair look less frizzy.
Yes, I recommend this product.
Originally posted on boots.com
gl0uise
INCENTIVIZED
Received Free Product
Review1
Votes0
5 out of 5 stars.
Would recommend x1000
INCENTIVIZED
Received Free Product
13 days ago
I had received this product just a few weeks ago and WOW this change the game for me. Having extensions my natural hair can frizz up sometimes and you can really see the difference between my hair and extensions but this eliminated that completely and made my hair soooo soft and the shine was amazing. A little does go a long way with this and my mums stolen it from me now! 🤣🤞🏻
Yes, I recommend this product.
Originally posted on boots.com
Brogan
INCENTIVIZED
Received Free Product
Review1
Votes0
5 out of 5 stars.
Glass hair in a bottle!
INCENTIVIZED
Received Free Product
21 days ago
Already purchased a second bottle of this! I just can’t get enough!! Smells delicious and also leaves my hair feeling super soft yet still light and bouncy! Now a firm favourite in my fair care routine!
Yes, I recommend this product.
Originally posted on boots.com
Kika
INCENTIVIZED
Received Free Product
Review1
Votes0
4 out of 5 stars.
Love it
INCENTIVIZED
Received Free Product
27 days ago
I was given the opportunity to try this product in exchange from my honest opinion
I noticed it leaves my hair super shiny and smooth
Super simple to use and you don’t have to use a lot
My hair feels light and it doesn’t become oily
Yes, I recommend this product.
Originally posted on boots.com
Khizra Mushtaq
INCENTIVIZED
Received Free Product
Review1
Votes0
5 out of 5 stars.
Shine
INCENTIVIZED
Received Free Product
a month ago
✨ Shine bright like a diamond with every strand. #DiamondSleek
Yes, I recommend this product.
Originally posted on boots.com
Char
Review1
Votes0
5 out of 5 stars.
Great product
a month ago
I have really enjoyed using this product! It leaves my hair shiny and smooth, with long lasting results.
Yes, I recommend this product.
Originally posted on boots.com
Pakenzas10
INCENTIVIZED
Received Free Product
Review1
Votes0
5 out of 5 stars.
Affordable
INCENTIVIZED
Received Free Product
a month ago
Garnier Diamond Sleek Shine-Coat Smoothing Spray is great as budget friendly hair protection and frizz free spray! Not only it helps with Frizz control but also makes hair shinny!
Yes, I recommend this product.
Originally posted on boots.com
Gembos
INCENTIVIZED
Received Free Product
Review1
Votes0
5 out of 5 stars.
Fantastic product
INCENTIVIZED
Received Free Product
a month ago
This product is incredible, hair is so healthy and shiny