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

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.

A side-by-side before and after comparison of a woman's long dark brown hair, showing frizzy, uneven strands on the left and smoother, shinier, more uniform hair on the right. The image features 'BEFORE' and 'AFTER' text labels at the top against a clean light gray background.

Before and after comparison of a woman's hair, showing a straighter, shorter look on the left labeled 'BEFORE' and a longer, wavy, styled look on the right labeled 'AFTER'. The woman is wearing a white t-shirt against a light gray background.

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

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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

A Hydrating Shampoo & Conditioner duo made for all hair types and colors, in our biggest 32 oz (946 mL) size. Gives deep, lasting moisture for softer, smoother, silkier, healthier-looking hair.

About Hydrating Duo Jumbo Size

The Blacklight Hydrating Duo is made for all hair types and colors. It gently washes and conditions your hair while giving it targeted moisture when it feels dry. Made with nourishing ingredients like avocado, rice bran, and hemp seed oils, this duo helps balance your hair and scalp, bring back moisture, and add softness and flexibility.

This moisture-rich set cleans and conditions without weighing your hair down, leaving it 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

Frequently asked questions

Questions about the Hydrating Duo Jumbo Size? Find our most frequently asked questions here. Still need help? Contact us.

What does this duo do for my hair?

It cleanses and conditions your hair while giving it moisture where it needs it most, especially if your hair feels dry. It's formulated to leave hair softer, smoother, silkier, and healthy-looking, without weighing it down.

What are avocado, rice bran, and hemp seed oils, and why are they in this formula?

These are natural, nourishing oils known for their moisturizing properties. Avocado oil helps hydrate and soften hair, rice bran oil adds shine and smoothness, and hemp seed oil helps balance moisture without making hair feel heavy — together they support the duo's goal of restoring softness and flexibility.

Will this weigh my hair down since it's so moisturizing?

No — the formula is specifically designed to hydrate and soften hair without weighing it down, so you get the benefits of deep moisture while your hair still feels light, flexible, and manageable.

Can I use this if my hair is color-treated or bleached?

Yes, the Hydrating Duo is made for all hair types and colors, including color-treated, highlighted, and bleached hair, and is designed to add moisture without affecting your color treatment.

How soon will I notice results?

Many people notice softer, smoother-feeling hair right after the first wash, since the moisturizing ingredients work immediately on contact. With consistent use, you'll typically also notice improved shine and flexibility building up over time.

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

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Image showing the Blacklight Mini Hydrating Duo

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5 stars: 5 (83%)
4 stars: 1 (17%)
3 stars: 0 (0%)
2 stars: 0 (0%)
1 star: 0 (0%)

Great for my dry hair

Been using this duo for a few weeks and my hair feels noticeably softer and smoother. The jumbo bottles are definitely worth it for me.

Worth getting the jumbo size

I wash my hair pretty often and was going through the smaller bottles way too fast. Love having the big ones now! My hair feels hydrated without being heavy.

Amazing product super happy with my order

Thank you so much! We're thrilled that you love your new Blacklight Blonde Science products! :-)

Really good value

I love the shampoo and conditioner and the big size is super convenient. The bottles are pretty large for my shower shelf though, but they'll last me a long time.

Finally the big bottles

I already loved the hydrating shampoo and conditioner so getting them in this size was a no brainer. They last forever and my hair feels sooo soft.

My whole family uses these

I originally bought this for myself but now everyone in the house uses it lol. The bottles are huge and you really don't need much.

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Hydrating Duo Jumbo Size

Best For:

Hydrating Duo Jumbo Size