Jumbo Duos
Discover our Jumbo Duos: a large-format shampoo and conditioner from the same line, designed to target your hair’s specific needs. Choose Hydrating, Repair, Violet or Blue for visibly healthier, more radiant blonde hair, with a routine that lasts longer between orders.
Science-backed, professional haircare designed to hydrate, repair, and bring out the best in blonde and lightened hair.
Stephanie M. - Montreal, QC
“I’ve tried so many toning shampoos over the years, but Blacklight Blonde Science Blue Shampoo is on another level. It keeps my blonde bright, neutralizes brassiness beautifully, and leaves my hair feeling incredibly soft and healthy. You can really tell the formula is high quality — my color looks fresher and shinier after every wash. It’s officially a staple in my routine!”
Discover Your Ideal Haircare Routine
Answer a few quick questions to get your personalized routine (and receive a gift!).
Blonde Hair Questions, Answered
Everything you need to know about the Jumbo Duos collection before you shop.
A large-format shampoo and conditioner from the same line (Hydrating, Repair, Violet or Blue), formulated to work together for a complete wash routine.
Choose Violet for yellow tones on light blonde or platinum hair, and Blue for orange tones on dark blonde or light brown hair. Choose Hydrating for dry, dull hair, and Repair for hair damaged by bleaching or heat.
Jumbo sizes last much longer, so you reorder less often. They’re ideal if you wash frequently, have long hair, or share your routine at home.
Toning duos work best 1 to 2 times per week to avoid over-toning. On other wash days, alternate with the Hydrating or Repair Duo to keep hair soft and strong.
Yes. Every duo is formulated for blonde, highlighted and lightened hair, and is sulfate-free and paraben-free to help protect your colour.
Find the Right Duo for Your Blonde
