Garnier Diamond Sleek Hair Shine Spray & Heat Protection Spray, Up to 100H Polished Shine & 72H Frizz-Free Sleek, with 8% Keratin Smoothing Complex & Argan Oil, 150ml

Price: £9.99 - £4.17
(as of Jul 24, 2026 09:11:15 UTC – Details)

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. Garnier Diamond Sleek Shine-Coat Smoothing Spray, Up to 72H Frizz-Free Sleek with up to 100H Polished Shine, with 8% Keratin Smoothing Complex and Argan Oil, Heat Protection Spray, *Instrumental tests using standard shampoo + Diamond Sleek Spray **No animal-derived ingredients or by-products
Package Dimensions ‏ : ‎ 17.4 x 3.9 x 3.8 cm; 180 g
Manufacturer ‏ : ‎ Garnier
ASIN ‏ : ‎ B0FQPJ1MW7
Country of origin ‏ : ‎ Belgium
Customer reviews: 4.3 4.3 out of 5 stars (104) var dpAcrHasRegisteredArcLinkClickAction; P.when(‘A’, ‘ready’).execute(function(A) { if (dpAcrHasRegisteredArcLinkClickAction !== true) { dpAcrHasRegisteredArcLinkClickAction = true; A.declarative( ‘acrLink-click-metrics’, ‘click’, { “allowLinkDefault”: true }, function (event) { if (window.ue) { ue.count(“acrLinkClickCount”, (ue.count(“acrLinkClickCount”) || 0) + 1); } } ); } }); P.when(‘A’, ‘cf’).execute(function(A) { A.declarative(‘acrStarsLink-click-metrics’, ‘click’, { “allowLinkDefault” : true }, function(event){ if(window.ue) { ue.count(“acrStarsLinkWithPopoverClickCount”, (ue.count(“acrStarsLinkWithPopoverClickCount”) || 0) + 1); } }); });

Heat Protection Spray: Up to 72H frizz-free sleek results for dull hair, delivering a polished glossy look that lasts even in high UK humidity
Keratin & Argan Oil: Powered by an 8% Keratin Smoothing Complex to actively smooth the hair fibre for a spectacular 100H diamond-like shine
230C Thermal Shield: This heat-activated formula provides essential protection from blow-drying and styling tools up to 230C to keep hair healthy
Lightweight Non-Greasy: Enjoy a super sleek finish with a natural bouncy feel, using a non-sticky texture that leaves lengths soft and lustrous
Sleek Shine System: Final step in the Keratin Sleek routine for best results, providing incredible polished shine and manageable smooth hair

Product summary

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