PROFESSIONAL
LITRE DUOS
IN CANADA

Every duo on this page is sourced directly through authorized Canadian distribution, so you’re always getting the genuine formula at the best price available. From Kevin Murphy and Davines to Redken and Pureology — shop by brand, hair type, or concern, or visit any of our six Metro Vancouver locations for personalized recommendations

Every duo on this page is sourced directly through authorized Canadian distribution, so you’re always getting the genuine formula at the best price available. From Kevin Murphy and Davines to Redken and Pureology — shop by brand, hair type, or concern, or visit any of our six Metro Vancouver locations for personalized recommendations
*Prices as marked. Litre duos are excluded from all promotions and are final sale.

80+ DUOS IN STOCK

40% MAX SAVINGS VS SRP

4:3 RATIO VS RETAIL SIZE

THE ZENNKAI  LITRE ADVANTAGE

✓ Pay for 3 regular sizes — get the volume of 4. That's the litre math.

✓ Same professional formula as your salon — not a consumer dilution

✓ Sephora, Shoppers, and London Drugs don't carry professional litres

✓ 100% authenticated stock — never grey-market or diverted

✓ 40+ years authorized retailer — Vancouver's professional hair care source since 1984

*Prices as marked. Litre duos are excluded from promotions and are final sale.

80+ DUOS IN STOCK

40% MAX SAVINGS VS SRP

4:3 RATIO VS RETAIL SIZE

80+ DUOS IN STOCK

UP TO 40% SAVINGS

4:3 VS RETAIL SIZE

SHOP ALL LITRE DUOS

WHY BUY LITRES?
Title

ALL LITRE DUOS

Redken All Soft 1 litre professional shampoo conditioner for dry brittle hair Canada

Redken All Soft Litre Duo

$96.95 CAD
$134.00 CAD
Goldwell Rich Repair 1 litre professional damaged hair repair shampoo conditioner Canada

Goldwell Rich Repair Litre Duo

$69.95 CAD
$112.00 CAD
Biolage Colorlast 1 litre professional colour protection shampoo conditioner Canada

Biolage Colorlast Litre Duo

$73.95 CAD
$108.00 CAD
Biolage Hydrasource 1 litre professional moisturising shampoo conditioner dry hair Canada

Biolage Hydrasource Litre Duo

$73.95 CAD
$108.00 CAD
Pureology Hydrate 1 litre professional shampoo conditioner dry colour-treated hair Canada

Pureology Hydrate Litre Duo

$154.00 CAD
$230.00 CAD
Redken Acidic Bonding Concentrate 1 litre professional bond repair shampoo conditioner Canada

Redken Acidic Bonding Concentrate Litre Duo

$105.95 CAD
$146.00 CAD
Milkshake Colour Care 1 litre professional colour protection milk protein shampoo conditioner Canada

Milkshake Colour Care Litre Duo

$119.95 CAD
$152.00 CAD
Redken Volume Injection 1 litre professional volumising shampoo conditioner fine hair Canada

Redken Volume Injection Litre Duo

$96.95 CAD
$134.00 CAD
Redken Extreme 1 litre professional damaged hair repair shampoo conditioner Canada

Redken Extreme Litre Duo

$96.95 CAD
$134.00 CAD
Goldwell Color 1 litre professional colour protection shampoo conditioner Canada

Goldwell Color Litre Duo

$69.95 CAD
$112.00 CAD
Biolage ScalpSync Calming 1 litre professional sensitive scalp shampoo conditioner Canada

Biolage ScalpSync Calming Litre Duo

$73.95 CAD
$108.00 CAD
Nioxin System 2 1 litre professional noticeably thinning hair cleanser conditioner Canada

Nioxin System 2 Litre Duo

$57.95 CAD
$100.00 CAD
Biolage Volume Boost 1 litre professional volumising shampoo conditioner fine hair Canada

Biolage Volume Boost Litre Duo

$73.95 CAD
$108.00 CAD
KMS Moist Repair 750ml professional moisture repair shampoo conditioner damaged hair Canada

KMS Moist Repair 750ml Duo

$74.95 CAD
$120.00 CAD
Biolage Clarifying Detangling 1 litre professional clarifying shampoo conditioner Canada

Biolage Clarifying & Detangling Litre Duo

$73.95 CAD
$108.00 CAD
Goldwell Blondes Highlights 1 litre professional blonde highlighted hair shampoo conditioner Canada

Goldwell Blondes & Highlights Litre Duo

$69.95 CAD
$112.00 CAD
Davines OI 1 litre professional Roucou oil shampoo conditioner all hair types Canada

Davines OI Litre Duo

$263.00 CAD
$294.00 CAD
Nioxin System 4 1 litre professional colour-treated progressed thinning cleanser conditioner Canada

Nioxin System 4 Litre Duo

$57.95 CAD
$100.00 CAD
Redken Color Extend Magnetics 1 litre professional colour protection shampoo conditioner Canada

Redken Color Extend Magnetics Litre Duo

$98.95 CAD
$136.00 CAD
Loma Moisturizing 1 litre professional organic aloe vera shampoo conditioner dry hair Canada

Loma Moisturizing Litre Duo

$98.95 CAD
$115.00 CAD
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WHY BUY THE LITRE

Title

The Professional Size

Professional litre shampoos and conditioners are the same formulas used by salons across Canada — the same concentration, the same active ingredients, the same results. The difference is simply volume: 1000ml instead of the regular size.

 

Professional litre sizes are distributed exclusively through authorized salon channels — which is exactly what Zennkai operates as, since 1984. For anyone who goes through product regularly, colours their hair, or simply wants the best per-wash value from professional hair care, the litre duo is the most economical and practical purchase you can make.

SHOP ALL LITRE DUOS

01

Better value per wash, every time

Regular sizes range from 250ml to 300ml depending on the brand. A litre is 1000ml — the equivalent of 3 to 4 regular bottles in a single purchase. Depending on the brand, that can mean saving the volume of up to a full regular-sized bottle. Take Pureology: a 250ml bottle is $42.50. Four of those is $170.00. The Pureology litre is $97.75. Same volume, $72 less. The exact savings vary by brand, but the math always works in your favour.

02

80+ SKUs from Canada’s most-loved professional brands

Zennkai carries one of Canada’s largest online selections of professional litre duos — Redken, Pureology, Davines, Kevin Murphy, MoroccanOil, Biolage, Goldwell, and more. All in one place, all authorized, all authenticated.

03

Lasts 3–5 months per purchase

A litre lasts the average person 3–5 months with regular use. Buy once, forget about it for the season.

04

100% authenticated professional stock

Every litre duo at Zennkai is sourced through authorized Canadian professional distributor channels. Never grey-market, never diverted.

05

Final sale — zero waste

Litre duos are final sale, which means every purchase is committed. Buy the brand you know works for your hair and stock up properly.

FAQ

Where can I buy professional litre shampoo and conditioner in Canada?

Zennkai is one of Canada's largest authorized retailers of professional litre shampoos and conditioners, with 80+ litre duo SKUs from Redken, Pureology, Davines, Kevin Murphy, MoroccanOil, Biolage, Goldwell, and more. Available online at zennkai.com with fast Canada-wide shipping, or in-store at our six Metro Vancouver locations. Professional litre sizes are not available at Sephora Canada.

Why are professional litre sizes not available at Sephora?

Professional litre sizes are distributed exclusively through authorized salon and professional retail channels — not consumer beauty retailers. Sephora operates as a consumer beauty retailer and does not hold the professional distribution agreements required to carry litre sizes. Zennkai has operated as an authorized professional retailer since 1984, which is why we carry the full professional litre range.

Is the formula in litre sizes the same as regular size?

Yes — 100% identical formula. A Pureology Hydrate litre is the exact same formula as the regular 266ml size, just in a larger volume. The active ingredients, concentration, and performance are identical. The litre size simply delivers better value per wash.

How long does a litre duo last?

Here's the volume math: three standard 300ml bottles equal 900ml total. A litre is 1000ml. So when you buy the litre, you're getting 100ml more product than three regular bottles combined — effectively a free bottle of product every three purchases. For most people with medium-length hair washing every 2–3 days, a litre lasts 3–5 months. Long or thick hair may go through it faster (2–3 months). Fine or short hair will stretch it to 5–6 months.

Are Zennkai litre duos authentic professional products?

Yes. Every litre duo at Zennkai is 100% authenticated professional stock sourced through authorized Canadian professional distributor channels — never grey-market, diverted, or third-party. Zennkai has been an authorized retailer for Redken, Pureology, Davines, Kevin Murphy, and all brands we carry since 1984. Our authentication is why stylists across Metro Vancouver recommend us to their clients.

Which litre duo is best for colour-treated hair?

For colour-treated hair, the top recommendations are: Pureology Hydrate Litre Duo (AntiFade Complex, 100% vegan, ZeroSulfate — Canada's #1 colour care brand); Redken Color Extend Magnetics Litre Duo (amino-ion charge system locks colour molecules); or Redken Acidic Bonding Concentrate Litre Duo (citric acid bond repair for chemically processed hair). All three available at Zennkai at Canada's lowest prices.

CANADA'S HOME FOR PROFESSIONAL LITRE DUOS

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