RUSK Thermal Serum – Heat Protectant Treatment for Frizz Control – Smoothing with Added Shine, Moisture & Cuticle Sealing – Lightweight Anti-Humidity Hair Serum (4 oz)
$20.80
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From the manufacturer
Your Heat Styling Essentials 
Smooth, protect, and shine — a thermal trio for every hot tool.
Instant softness and lasting shine.
Silky. Smooth. Protected.
RUSK Thermal Serum is a concentrated, alcohol-free formula that seals the cuticle, eliminates frizz, and defends against heat. Enriched with argan oil and marine botanicals, it leaves hair silky, shiny, and protected — perfect for color-treated and chemically-treated hair.
Instantly smooths + softens + conditionsEliminates frizz & drynessHeat + UV protectionSafe for color-treated hair
How to Use Thermal Serum
On Wet Hair:
Apply 2–6 drops evenly through towel-dried hairBlow dry for silky softness and shine
On Dry Hair:
Smooth a small amount from mid-lengths to ends and use as a finishing touch to tame frizz + add polish 
Powered by Argan Oil + Botanicals
Argan Oil: Nourishes + adds shineSilk Proteins: Smooth + strengthenMarine Botanicals: Support softness + hydrationUV Filter: Helps shield against heat & sun damage
Pro-Level Volume. Polished, Touchable Finish. 
Silky, Soft Finish
Instantly transforms frizz into smooth, touchable shine.
Argan Oil Infused
Enriched with argan oil + proteins for strength, softness, and polish.
Wet or Dry Styling
Apply before heat for protection or after styling for shine.
The RUSK Standard
Pro-grade formulas crafted for stylists, delivering salon results at home.
Thermal Serum
Find Your Thermal Match
Pure Argan Oil
Smooth & Condition
Key Benefit
Protect & Straighten
Light
Hold
Light
Soft & Silky
Finish
Sleek & Glossy
Thick, Frizzy
Best For
All Hair Types
Apply pre-blow dry
Pro Tips
Spray pre-heat style
Pure Argan Oil
Smooth & Condition
Key Benefit
Shine/Frizz Control
Light
Hold
Firm
Soft & Silky
Finish
Smooth & Polished
Thick, Frizzy
Best For
Syles with Irons
Apply pre-blow dry
Pro Tips
Use with iron
Pure Argan Oil
Smooth & Condition
Key Benefit
Smooth & de-frizz
Light
Hold
Light
Soft & Silky
Finish
Sleek & Smooth
Thick, Frizzy
Best For
Thick, frizzy hair
Apply pre-blow dry
Pro Tips
Flexible + Soft
Pure Argan Oil
Smooth & Condition
Key Benefit
Texture & Control
Light
Hold
Medium
Soft & Silky
Finish
Flexible & Soft
Thick, Frizzy
Best For
All hair types
Apply pre-blow dry
Pro Tips
Wet or dry styling
Thermal Spray 
Thermal Shine Spray 
Str8 Lotion 
Wired Styling Creme 
Is Discontinued By Manufacturer : No
Product Dimensions : 2 x 2 x 4.5 inches; 4.94 ounces
Item model number : IRATHERMS4A
UPC : 611186040669
Manufacturer : RUSK
ASIN : B0017RD0KW
Best Sellers Rank: #26,844 in Beauty & Personal Care (See Top 100 in Beauty & Personal Care) #91 in Hair Styling Serums
Customer Reviews: 4.5 4.5 out of 5 stars (2,199) 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); } }); });
Sleek Finish Essential – This concentrated thermal serum smooths hair texture, seals the cuticle, and eliminates frizz while enhancing shine for a polished, salon-quality finish across all hair types.
Cuticle-Sealing Technology – Designed to lock in moisture and smooth the hair surface, this formula helps reduce roughness and improve light reflection for visibly shinier, healthier-looking hair.
Lightweight Shine Boost – Delivers incredible shine without buildup or heaviness, making it ideal for daily styling routines where smoothness, movement, and softness are key.
Effortless Styling Control – Apply a small amount to damp or dry hair before heat styling to protect strands, reduce frizz, and create a sleek, controlled finish with lasting smoothness.
Trusted Professional Brand – Known for performance-driven styling solutions, RUSK delivers salon-quality results with innovative formulas designed to elevate everyday hair routines.
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$20.80
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