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Labor Day Sale - 30% Off Sitewide

Celebrate Labor Day with 30% off sitewide — because you deserve it.

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Receive a Free Travel Size (60 ml - 2 fl. oz) product on all orders over $75!

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Featured products

Front of bottle of Blacklight Blonde Science Blue Shampoo for Blonde Hair 300ml #size_300 ml / 10.1 fl. oz
Blue ShampooNeutralize orange tones
Sale price$36.00 CAD
(4.8)
3 bottles of Blacklight Blonde Science Hydrating Products for Blonde Hair including a shampoo, conditioner and mask that are included in a bundle
Hydrating BundleFor silky, healthy and luminous hair
Sale price$100.00 CAD Regular price$118.00 CAD
(5.0)
Front of jar of Blacklight Blonde Science Repair Mask for Blondes 200ml #size_200 ml / 6.8 fl. oz
Repair MaskRepair damaged blonde hair
Sale price$46.00 CAD
(5.0)
Front of bottle of Blacklight Blonde Science Blue Neutralizing Spray 225 ml
Blue Neutralizing SprayFor a blonde refresh
Sale price$38.00 CAD
(4.8)

Treatments & Hair Masks

Think of these products as a weekly boost for your hair — deep treatments and masks that intensely repair, nourish, and strengthen, while helping correct yellow or orange tones and lock in lasting moisture. A little extra care, for noticeably healthier hair.

8 products
hyd[hydrate] Save 30%Front of bottle of Blacklight Blonde Science Moisture 18-in-1 Beautifier 225ml #size_225 ml / 7.6 fl. oz
18-in-1 BeautifierFor hydration and protection
Sale price$38.00 CAD
(4.8)
neu[neutralize] Save 30%Front of bottle of the Blacklight Blonde Science Neutralizing Violet Spray 225 ml
Violet Neutralizing SprayNeutralize yellow tones
Sale price$38.00 CAD
(4.8)
hyd[hydrate] Save 30%Front of jar of the Blacklight Blonde Science Hydrating Mask 225ml #size_200 g / 7.05 fl. oz
Hydrating MaskRestore hydration and shine
Sale price$46.00 CAD
(4.9)
rep[repair] Save 30%Front of jar of Blacklight Blonde Science Repair Mask for Blondes 200ml #size_200 ml / 6.8 fl. oz
Repair MaskRepair damaged blonde hair
Sale price$46.00 CAD
(5.0)
neu[neutralize] Save 30%Front of bottle of Blacklight Blonde Science Blue Neutralizing Spray 225 ml
Blue Neutralizing SprayFor a blonde refresh
Sale price$38.00 CAD
(4.8)
hyd[hydrate] Save 30%Front of bottle of the Blacklight Blonde Science Lightweight Hydrating Shine Oil 100ml
Hydrating Shine OilEnhance shine for dry hair
Sale price$48.00 CAD
(5.0)
hyd[hydrate] Save 30%Front of jar of the Blacklight Blonde Science Deep Hydrating Mask 200ml #size_200 ml / 6.8 fl. oz
Deep Hydrating MaskDeeply hydrate dry hair
Sale price$46.00 CAD
(4.9)
rep[repair] Save 30%Front of bottle of Blacklight Blonde Science Hair and Scalp Oil 45ml
Hair and Scalp OilFor dry scalps
Sale price$48.00 CAD
(4.8)

Blacklight Blonde Science's treatments and hair masks deliver deep, targeted care — from intense hydration to damage repair — helping restore softness, strength, and shine between regular washes.

Olivia N. - Cleveland, OH

“The 18-in-1 Beautifier is my go-to styling product. It detangles, controls frizz, adds shine, and leaves my blonde hair soft, smooth, and easy to manage.”

hyd[hydrate] Save 30%Front of bottle of Blacklight Blonde Science Moisture 18-in-1 Beautifier 225ml #size_225 ml / 7.6 fl. oz
18-in-1 BeautifierFor hydration and protection
Sale price$38.00 CAD
(4.8)
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Discover Your Ideal Haircare Routine

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Blonde Hair Questions, Answered

Everything you need to know about the Treatments & Hair Masks collection before you shop.

How often should you use a hair mask on blonde hair?

Most hair masks should be used 1 to 2 times per week for blonde, bleached, or highlighted hair. Since chemically treated hair is more porous and prone to dryness, a weekly deep treatment helps rebuild moisture and strength that daily conditioner alone can't fully restore.

What's the difference between a hair mask and regular conditioner?

A hair mask is a more concentrated, longer-lasting treatment designed to penetrate deeper into the hair shaft, while regular conditioner provides lighter, everyday moisture and detangling. Hair masks are meant to be left on longer and used less frequently for more intensive repair.

Can a hair mask fix damaged or over-processed blonde hair?

A hair mask can significantly improve the look and feel of damaged or over-processed blonde hair by restoring moisture and strengthening the hair's internal structure, but it can't reverse chemical damage already done. Regular use helps prevent further breakage and keeps hair looking healthier between salon visits.

How long should you leave a hair mask on?

Most hair masks should be left on for 10 to 15 minutes to allow the treatment to fully penetrate the hair shaft. For extra dry or damaged blonde hair, some treatments can be left on longer or applied with heat (like a warm towel) for deeper conditioning.

Do I still need a hair mask if I use a hydrating conditioner?

Yes, a hair mask and hydrating conditioner serve different purposes and work best together. Conditioner provides daily maintenance moisture, while a hair mask delivers a more intensive, deeper treatment that targets damage and dryness a regular conditioner can't fully address on its own.

Deep Treatment for Blonde, Bleached, and Highlighted Hair

Blonde hair takes a lot to achieve — and just as much to maintain. Bleach, toner, and repeated colour services leave hair more porous and prone to breakage than its natural state, which is why a regular deep treatment matters as much as your everyday shampoo and conditioner. Blacklight Blonde Science treatments and hair masks are formulated to go beyond daily conditioning, delivering the intensive moisture and repair that chemically treated hair needs to stay strong.

Used 1 to 2 times per week, our hair masks penetrate deeper into the hair shaft than conditioner alone, rebuilding strength and restoring softness to dry, damaged, or over-processed strands. They're an essential step for anyone maintaining platinum, balayage, or heavily highlighted blonde — helping prevent breakage while keeping hair looking healthy between salon visits.

Pair your weekly treatment with our shampoo and conditioner for a complete blonde hair care routine, or visit The Blonde Journal for more tips on repairing and protecting colour-treated hair.

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