Leave-In Treatments
Explore our wide range of leave-in treatments, specially formulated for every hair type—whether it’s damaged, blonde, curly, coloured, or dry & frizzy. No matter your hair’s needs, we’ve got the perfect match to nourish, protect, and revive your locks.
Leave-In Treatments
Showing 151–300 of 332 resultsSorted by popularity
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Milk Shake Flower Fragrance Incredible Milk 150ml
$42.95 -
Juuce Protect Solar Enz Leave In Treatment 150ml
$33.00 -
Davines Authentic Nourishing Oil 140ml
$64.90 -
Kevin Murphy Staying Alive 150ml
$61.00 -
Paul Mitchell Awapuhi Styling Treatment Oil 100 mL
$48.00 -
Color Wow Money Mist 150ml
$47.99 -
Redken Acidic Bonding 4-Step Bundle
Original price was: $230.50.$195.92Current price is: $195.92.Save 15% -
Angel Lavender Violet Tone Correcting Spray 150ml
$37.90 -
Davines Love Smooth Perfector 150ml
$52.50 -
Evo Day Of Grace Pre-Style Primer 200ml
$45.00 -
Fudge All Blonde Condition & Shield Mist 150ml
$31.00 -
Joico Defy Damage Sleepover Nourishing Treatment 100ml
$46.50 -
ORI Lab Ends Remedy 150ml
$43.95 -
Milk Shake Integrity Muru Muru Butter 200ml
$51.95 -
Nioxin System 3 Trial Kit
$64.99 -
Curl Wow Flo-etry Vital Natural Serum 295ml
$59.99 -
Kerasilk Multi-Benefit Oil 50ml
$57.00 -
New!
Eleven Blonde Trio
$78.00 -
Joico Defy Damage Invincible Frizz-Fighter 180ml
$46.50 -
Wella Ultimate Smooth (Oil) Bundle
Original price was: $168.00.$142.80Current price is: $142.80.Save 15% -
Nioxin System 1 Trial Kit
$64.99 -
Fanola No Yellow 2-Phase Leave In Potion 150ml
$42.00 -
Wella Eimi Nutri Curls Fresh Up 150ml
$37.50 -
Redken Acidic Bonding Concentrate 24/7 Night & Day Serum 100ml
$63.99 -
Wellaplex No 3 Hair Stabilizer 100 mL
$55.90 -
Nak Hydrate Detangle Mist 250ml NEW
$35.99 -
Milk Shake Toning Spray Silver Shine 100ml
$41.95 -
Loreal Absolut Repair Molecular Leave-in Mask 100ml
$64.99 -
Loreal Vitamino Color Bundle
Original price was: $139.50.$118.57Current price is: $118.57.Save 15% -
Juuce Knot Knotty Detangler 200ml
$33.00 -
Angel Camellia Versatile Cream Leave In 150ml
$54.00 -
De Lorenzo Allevi8/The Ends Trio
$59.90 -
Matrix Instacure Anti-Breakage Porosity Spray 200ml
$32.51 -
K18 Detox & Repair Bundle (Detox, Mask, Oil)
Original price was: $353.00.$300.05Current price is: $300.05.Save 15% -
Wella Oil Reflections Bundle
Original price was: $142.20.$120.87Current price is: $120.87.Save 15% -
Muk Deep Ultra Soft Moisturising Cream 200ml
$37.95 -
Milk Shake Flower Fragrance Leave In Conditioner Travel 75ml
$15.95 -
Muk Intense Repair Treatment 200ml
$37.95 -
Fanola Wonder Curl Leave In Conditioner 300ml
$34.00 -
Moroccanoil Purple Treatment 25ml
$37.45 -
Paul Mitchell Platinum Blonde Toning Spray 150 mL
$36.00 -
Paul Mitchell Awapuhi Moisture Mist 250 mL
$31.00 -
Kevin Murphy Ready, Set, Repair Trio
$146.00 -
K18 Shield & Shine Bundle (Damage Shampoo, Conditioner, Oil)
Original price was: $283.00.$240.55Current price is: $240.55.Save 15% -
Redken Acidic Bonding (Pre-Shampoo) Bundle
Original price was: $167.50.$142.37Current price is: $142.37.Save 15% -
New!
Olaplex No. 3 Plus Ultimate Repair Treatment 100ml
$68.00 -
Angel Green Tea (Anti-Dandruff) Bundle
Original price was: $133.70.$113.64Current price is: $113.64.Save 15% -
Nioxin System 4 Full Size Kit
$119.00 -
De Lorenzo Instant Illumin8 Mousse 250ml
$34.90 -
De Lorenzo Curl Primer 150ml
$27.00 -
re:BOND Miracle Bond Building Mask 89mL
$85.00 -
ORI Lab Overnight Dew Serum 100ml
$43.95 -
Davines NaturalTech Nourishing Keratin Sealer 100ml
$72.90 -
System Professional Forma Hydrate Quenching Mist 125 mL
$76.50 -
Sebastian Potion 9 Lite 150ml
$70.00 -
Nak K.Revive Peptide Leave-In Power Mask 80ml
$74.95 -
K18 Bestsellers Bundle (Detox, Mask, Dry Shampoo)
Original price was: $343.00.$291.55Current price is: $291.55.Save 15% -
Nioxin System 4 Leave In Treatment 100ml
$51.99 -
Kerasilk Strengthening Bond Builder 90ml
$57.00 -
De Lorenzo Illumin8/The Ends Trio
$59.90 -
KMS MoistRepair Hydrating Oil 100ml
$39.00 -
Davines Minu Hair Serum 150ml
$52.50 -
Muk Deep 1 Minute Treatment 200ml
$37.95 -
Redken Acidic Bonding Curls Leave-In Treatment 250ml
$63.00 -
Eleven Keep My Colour Blonde Toning Spray 200ml
$42.00 -
Joico Colorful Glow Beyond Anti-Fade Serum 63ml
$42.50 -
Wella Nutri Curls Milky Waves Nourishing Spray 150ml
$51.00 -
De Lorenzo Oil Balance 150g
$38.00 -
Wella Invigo Color Brilliance Miracle BB Spray 150ml
$41.00 -
Kevin Murphy Night Shift 100ml
$85.00 -
New!
Muk Hair Original Style, Soften & Protect Bundle
Original price was: $390.90.$252.00Current price is: $252.00.Save 36% -
New!
Wella Ultimate Smooth Trio
$124.95 -
Matrix Brass Off Mask 200ml
$44.00 -
Evo Fabuloso Platinum Blonde Toning Mist 140ml
$48.00 -
Pure Organic Fusion Complex Leave In Treatment 200ml
$42.60 -
Muk Kinky Leave In Moisturiser 200ml
$37.95 -
Muk Deep Ultra Soft Leave In Conditioner 250ml
$37.95 -
Biolage Strength Recovery Spray 232ml
$44.99 -
Davines NaturalTech Replumping Hair Filler Superactive 100ml
$88.50 -
New!
Amika Frizz-Me-Not Hydrating Anti-Frizz Treatment 200ml
Original price was: $40.95.$32.76Current price is: $32.76.Save 20% -
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Muk Hair Ultra Soft Bundle
Original price was: $113.85.$96.77Current price is: $96.77.Save 15% -
Biolage All-in-one Multi Benefit Spray 250ml
$49.00 -
Milk Shake Flower Fragrance Whipped Cream 200ml
$39.95 -
Lust Ends Repair Balm 175ml
$39.00 -
Nioxin System 1 Full Size Kit
$119.00 -
ORI Lab Ends Remedy 50ml
$18.95 -
Loreal Metal Detox Leave-In Cream 100ml
$65.99 -
Fanola Wonder Color Locker Sealing Cream 200ml
$34.00 -
De Lorenzo Accentu8/The Ends Trio
$59.90 -
Paul Mitchell Clean Beauty Anti-Frizz Leave In Treatment 150 mL
$39.00 -
New!
Amika Hydro Rush Intense Moisture Mask 250ml
Original price was: $76.95.$61.56Current price is: $61.56.Save 20% -
Matrix A Curl Can Dream Lightweight Oil 131ml
$39.60 -
Nioxin System 3 Leave In Treatment 100ml
$51.99 -
Moroccanoil Purple Treatment 50ml
$70.95 -
Loreal Metal Detox Oil 50ml
$65.99 -
Kevin Murphy Everlasting Colour Leave In 150ml
$85.00 -
Paul Mitchell Clean Beauty Everyday Leave In Treatment 150 mL
$39.00 -
Paul Mitchell Forever Blonde Dramatic Repair 150 mL
$37.00 -
BlondMe Bond Repair Purple Spray Conditioner 150mL
$48.00 -
K18 Repair & Style Bundle (Mask, Dry Shampoo, Volume Spray)
Original price was: $379.00.$322.15Current price is: $322.15.Save 15% -
K18 Repair, Refresh & Shine Bundle (Mask, Oil, Dry Shampoo)
Original price was: $389.00.$330.65Current price is: $330.65.Save 15% -
Matrix Insta Cure Build-A-Bond Super Sealing Leave In Balm 75ml
$29.99 -
Nioxin System 3 Full Size Kit
$119.00 -
Nioxin System 1 Leave In Treatment 100ml
$51.99 -
Milk Shake Toning Spray Cold Brunette 100ml
$41.95 -
Redken Refresh Curl Mist 250ml
$44.99 -
BC Clean Performance pH 4.5 Color Freeze Shine Savior 150ml
$40.00 -
System Professional Forma Liquid Hair 100 mL
$131.00 -
New!
Lust Curl/Ends Repair Balm Trio
$69.90 -
New!
Amika Plus Size Perfect Body Mousse 252ml
Original price was: $54.95.$43.96Current price is: $43.96.Save 20% -
Sebastian No Breaker Bonding & Styling Leave-in Cream 145ml
$69.00 -
System Professional Luxeblond UV Heat Protect 180ml
$80.00 -
System Professional Luxeblond Moisturizer Conditioner 200ml
$67.50 -
Fanola Wonder Nourishing Glossing Spray 150ml
$42.00 -
Curl WOW Snag-Free Pre-Shampoo Detangler 295ml
$59.99 -
Kerasilk Repairing Spray 125ml
$57.00 -
BC Clean Performance Moisture Kick Hydration Balm 150ml
$40.00 -
ORI Lab Moisture Foam 150g
$43.95 -
System Professional Fibra Repair Perfect Hair Mousse 150 mL
$76.50 -
New!
Amika Hydro Rush Intense Moisture Leave-In Conditioner 200ml
Original price was: $52.95.$42.36Current price is: $42.36.Save 20% -
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Amika Dream Routine Overnight Hydration Treatment 100ml
Original price was: $59.95.$47.96Current price is: $47.96.Save 20% -
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Amika Curl Corps Enhancing Gel 200ml
Original price was: $54.95.$43.96Current price is: $43.96.Save 20% -
New!
Muk Hair Best-Sellers Bundle
Original price was: $113.85.$96.77Current price is: $96.77.Save 15% -
Loreal Absolut Repair Molecular Oil 30ml
$62.50 -
Biolage All-in-one Multi Benefit Oil 100ml
$44.99 -
Muk Blonde 1 Minute Maintenance Treatment 300ml
$37.95 -
Juuce Hydrating Reviva Cream Moisture Foam 125g
$33.00 -
New!
Wella Ultimate Repair Day & Night Duo
$80.95 -
Fanola Wonder Curl Pre-Treatment 500ml
$35.00 -
Fanola Wonder Nourishing Leave-In Milk 195ml
$42.00 -
Fanola Wonder Nourishing Elixir 100ml
$42.00 -
Kerasilk Restorative Balm 75ml
$57.00 -
Color Wow Color Control Blue Mousse 200ml
$55.95 -
Goldwell Color Repair & Radiance Balm 75ml
$34.00 -
New!
K18 x Future Society Leave-in Molecular Repair Hair Mask 50ml
Original price was: $149.00.$119.00Current price is: $119.00.Save 20% -
New!
Wella Ultimate Color Miracle Leave-in mask 95ml
$88.00 -
New!
Pure Organic Lamellar Eternity Leave-in Treatment 50ml
$79.95 -
New!
Amika Water Sign Hydrating Hair Oil 50ml
Original price was: $59.95.$47.96Current price is: $47.96.Save 20% -
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Amika The Wizard Silicone-Free Primer 150ml
Original price was: $57.95.$46.36Current price is: $46.36.Save 20% -
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Amika The Kure Multi-Task Strength Repair Treat 200ml
Original price was: $58.95.$47.16Current price is: $47.16.Save 20% -
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Amika Superfruit Star Styling Oil 50ml
Original price was: $58.95.$47.16Current price is: $47.16.Save 20% -
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Amika Soulfood Nourishing Mask 250ml
Original price was: $65.95.$52.76Current price is: $52.76.Save 20% -
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Muk Hair Intense Repair Bundle
Original price was: $113.85.$96.77Current price is: $96.77.Save 15% -
New!
Muk Hair Blonde & Soft Bundle
Original price was: $113.85.$96.77Current price is: $96.77.Save 15% -
Moroccanoil Treatment Mist 25ml
$36.95 -
BlondMe Purple Toning Drops – Ice 30ml
$44.00 -
Loreal Scalp Advanced Anti Oily Spray 90ml
$69.99 -
New!
Nak Replends Creme Leave in Moisturiser Travel 50ml
Original price was: $17.95.$15.26Current price is: $15.26.Save 15% -
Pure Organic Flourish Leave in Treatment 200ml
$41.50 -
Sebastian No Breaker Hair Bonding Leave In Treatment 100ml
$69.00
Frequently Asked Questions
Q. What is a leave-in hair treatment?
A leave-in hair treatment is a no-rinse product that stays in your hair after washing. Unlike rinse-out masks or conditioners, it’s applied to damp or dry hair and left in to deeply nourish, repair, protect, and strengthen strands throughout the day. These treatments address concerns like breakage, frizz, heat damage, and dullness – making them a key step in any effective haircare routine.
Q. How often should I use a leave-in hair treatment?
You can use most leave-in hair treatments every time you wash your hair. For best results, apply them to towel-dried hair before heat styling or air drying. If your hair is dry, damaged, or colour-treated, using a leave-in treatment two to three times a week – or even daily – can help maintain strength, softness, and manageability.
Q. Should I wash out my leave-in hair treatment?
No – leave-in treatments are meant to stay in your hair to provide ongoing benefits. There’s no need to rinse them out. Just apply as directed (typically to damp hair), then style as usual. Washing the treatment out too soon will limit its effectiveness.
Q. What is the best leave-in hair treatment?
The best leave-in treatment depends on your hair type and goals. Some of our most popular options at Synergy Hair include:
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Milk_Shake Incredible Milk – A cult-favourite 12-in-1 treatment that repairs, detangles, protects, and adds shine.
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Angel Helichrysum Wakening Hydration Cream – Perfect for dry or damaged hair, this cream delivers moisture and smooths frizz.
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Moroccanoil Original Treatment – A multitasking, argan oil-infused formula that smooths, detangles, conditions, and enhances shine by up to 118%.
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K18 Leave-In Molecular Repair Mask (50ml) – The viral peptide-powered treatment that clinically reverses hair damage in just four minutes.
