Front of bottle of Blacklight Blonde Science Moisture Hydrating Shampoo 946ml #size_946 ml / 32 fl. oz

Front of bottle of Blacklight Blonde Science Moisture Hair Hydrating Conditioner 946ml #size_946 ml / 32 fl. oz

Blacklight Blonde Science Hydrating Collection Explained

Product line chart with four sections labeled HYD, REP, VIO, and BLU, each with a set of bottles and corresponding benefits.

Two bottles of Blacklight Hydrating Shampoo on a light green background with product details on a purple sidebar.

Two bottles of Blacklight Hydrating Conditioner on a light green background with product details on a purple sidebar.

Before and after comparison of a woman with blonde hair, wearing a beige tank top.

Marilou Belanger model posing in front of white background showing her blonde hair after using Blacklight Blonde Science Blue Products

hyd [hydrate]

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Hydrating Duo Jumbo Size

Name: Hydrating Duo Jumbo Size
Brand: Blacklight Blonde Science
SKU: F0000-762
Price: 152.00 CAD
Availability: InStock

$152.00 CAD

$190.00 CAD

Best For:

Suitable for all hair colors
Lacking softness and elasticity
Dry or dehydrated
Dull or prone to moisture loss

FREE GIFT ON ALL ORDERS $75+

Free Shipping On all orders $49+

Easy returns 30 days, no questions asked

Hydrating Shampoo & Conditioner duo in our largest 32 oz (946 mL) jumbo size. Delivers deep, lasting hydration for softer, smoother, silkier, healthier-looking blonde hair.

About Hydrating Duo Jumbo Size

Blacklight Hydrating Duo gently cleanses and conditions while delivering targeted hydration to dry or lightened blonde hair. Formulated with hyaluronic acid and nourishing oils like avocado, rice bran, and hemp seed, this duo helps rebalance hair and scalp, replenish moisture, and improve softness and elasticity.
This moisture-rich system cleans and conditions without weighing hair down, leaving blonde strands softer, smoother, silkier, and healthy-looking after every wash.

How To Use

Hydrating Shampoo: Apply to wet hair, massage into scalp and lengths, then rinse thoroughly. Follow with Hydrating Conditioner.

Hydrating Conditioner: Apply to towel-dried lengths and ends after shampooing, leave on for 1-2 minutes, then rinse thoroughly.

FAQs

Hydrating Duo Jumbo Size

Who is the Hydrating Duo best for?
This duo is formulated for blonde or lightened hair that feels dry, dehydrated, or lacking softness and elasticity. It's ideal if your hair feels rough, dull, or prone to moisture loss.

Why is this a 32 oz jumbo size?
The 32 oz (946 mL) format is our largest size, designed for salon professionals or at-home use for those who want a longer-lasting supply without repurchasing as often.

Will this weigh down fine or lightweight blonde hair?
No. The formula is designed to hydrate without heaviness, using lightweight oils like rice bran and hemp seed so hair stays soft and bouncy, not weighed down or greasy.

Can I use this if I also use a toning shampoo (like Violet or Blue)?
Yes. Many people alternate the Hydrating Duo with a toning shampoo throughout the week to balance moisture needs with brass control — hydrate one wash, tone the next.

Is this safe for color-treated or chemically lightened hair?
Yes. It's specifically formulated for blonde and lightened hair, and it's free from sulfates, salts, parabens, formaldehyde, MI/MCI, gluten, and animal by-products.

Still looking for help? View all our FAQs Here

Shipping & Returns

We offer free shipping on orders over $50 across Canada and the Continental United States. Orders below $50 are shipped at a flat rate of $10.

Our team will typically ship your order within 2 business days. When your package leaves our warehouse, you’ll receive an email with your tracking information.

Most customers receive their order within 3–7 business days from the date of purchase, depending on the destination.

Hydrating Duo Jumbo Size

$152.00 CAD

$190.00 CAD

Sulfate-Free

Paraben-Free

Gluten-Free

See the difference

Dry and parched to deeply nourished. Our hydrating products restore moisture, softness, and shine — so your hair feels healthy from root to tip.

Before

After

Hydrating Duo Jumbo Size

Lightweight hydration for softer, healthier blondes.

The Blacklight Hydrating Duo Jumbo pairs a shampoo and conditioner to deeply hydrate dry, lightened blonde hair, leaving it softer, smoother, and healthier-looking after every wash.

Formulated with hydrating hyaluronic acids and a nourishing blend of avocado, rice bran, and hemp seed oils to rehydrate and rebalance the hair and scalp

Read The Report

My blonde feels deeply hydrated, softer, and shinier, with healthy bounce and beautiful shine after every wash.

— Kate H.

The Science

A synergistic blend of skincare actives and superfoods

Hyaluronic Acid

The gold standard in skincare, hyaluronic acids act synergistically on the hair: Water-soluble hyaluronic acid hydrates the surface, while oil-soluble hyaluronic acid hydrates from within.

Avocado Oil

Rich in oleic acid—one of the only fatty acids small enough to permeate the hair shaft—avocado oil conditions from within, minimizing water loss and frizz and maximizing hydration and shine.

Hemp Seed Oil

Rich in fatty acids and proteins, hemp seed oil seals the cuticle and strengthens its structural integrity, restoring hydration and elasticity. Because your blonde should bend, not break.

Rice Bran Oil

Vitamin-rich and lightweight, rice bran oil coats the hair and seals the cuticle. Less frizz and static, no greasy residue—just silkier, shinier hair. It’s hydration without the heaviness.

The Science

Trusted by salons, stylists & blondes

Front of bottle of Blacklight Blonde Science Moisture 18-in-1 Beautifier 225ml #size_225 ml / 7.6 fl. oz

18-in-1 Beautifier $16.00

Front of bottle of Blacklight Blonde Science Neutralizing Violet Shampoo 300 ml #size_300 ml / 10.1 fl. oz

Violet Shampoo $16.00

Front of jar of the Blacklight Blonde Science Hydrating Mask 225ml #size_200 g / 7.05 fl. oz

Hydrating Mask $18.00

Front of bottle of Blacklight Blonde Science Moisture Hydrating Shampoo 60ml #size_300 ml / 10.1 fl. oz

Hydrating Shampoo $16.00

Front of bottle of Blacklight Blonde Science Hair and Scalp Oil 45ml

Hair and Scalp Oil $48.00

Jessica M., Los Angeles, CA

Blacklight Blonde Science products feel salon-quality. My hair has never looked healthier or brighter.

Emily R., Chicago, IL

The quality of Blacklight Blonde Science products is incredible. You can tell real science went into creating them.

Sarah K., Austin, TX

I’ve tried many brands, but Blacklight Blonde Science stands out for quality, performance, and beautiful results.

Sophie L., Montreal, QC

Premium formulas, amazing results, and gorgeous packaging. Blacklight Blonde Science truly feels like professional hair care.

Megan T., Vancouver, BC

Finally a brand dedicated to blondes that actually delivers high-quality products that work.

Olivia B., Toronto, ON

Blacklight Blonde Science quickly became my go-to brand. The quality and results are simply outstanding.

The hyd [hydrate] Collection

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18-in-1 BeautifierFor hydration and protection

From $16.00 CAD

(4.9)

hyd[hydrate]

On sale

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

From $18.00 CAD

(5.0)

hyd[hydrate]

Purple tube of Blacklight conditioner on a white background to hydrate blonde hair #size_200 ml / 6.8 fl. oz

Hydrating ConditionerRestore softness & elasticity

From $16.00 CAD

(4.9)

hyd[hydrate]

Hydrating MaskRestore hydration and shine

From $18.00 CAD

(5.0)

hyd[hydrate]

Hydrating ShampooFor lasting hydrating and shine

From $16.00 CAD

(4.9)

hyd[hydrate]

Save 15%

Image showing the Blacklight Mini Hydrating Duo

Mini Hydrating DuoFor lasting moisture

$27.20 CAD

$32.00 CAD

(4.9)

Discover Your Ideal Haircare Routine

Answer a few quick questions to get your personalized routine (and receive a gift!).

Take the hair quiz

Frequently asked questions

Questions about your formula, your order, or your hair? Find our most frequently asked questions below. Still need help? Contact us.

Vist FAQs

How can I contact your customer service team?

Have a question? Our customer service team is here to help, Monday to Friday, 8am to 4pm ET by email at info@blacklightblondescience.com Whether you’d like to learn more about the Blacklight Blonde Science brand, need help choosing the right products for your hair, or have questions about your order or shipment, we’re happy to assist. Reach out anytime and we’ll make sure you get the answers you need.

What makes your products unique?

Every Blacklight Blonde Science formula is made with a synergistic blend of skincare actives and nutrient-dense superfoods, proving that better hair begins with better ingredients.

Can I return a product?

Your satisfaction is important to us. If your purchase isn’t quite right, simply contact our customer service team to request a return authorization and instructions.
Most products can be returned within 30 days, provided they are unused, unopened, and in their original packaging.

Where is your company located?

Our office, warehouse, and production facility are all based in Montreal, Quebec, Canada. We proudly formulate and manufacture our products in-house, all under one roof—powered by one passionate team.

Are your products cruelty-free?

We’re committed to creating professional-quality haircare that delivers real results—without the premium price tag. And of course, our products are cruelty-free. No animal testing here… we prefer to test on happy humans instead!

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Hydrating Duo Jumbo Size

Best For:

Hydrating Duo Jumbo Size