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Your Cheat Sheet:
- Best for
- Light blonde, highlighted or platinum
- Coloured or naturally blonde
- In need of yellow tone correction and color refresh
- Faded, full or prone to brassiness
- How often
- 1–2× per week, leave on 1–3 min
- Results
- Cooler, brighter blonde from the first wash
- Key ingredients
- Violet pigments, squalane, moringa and argan oils, açai extract
Blacklight Violet Shampoo is made for light blonde, platinum, and white hair, gently washing your hair while removing unwanted yellow tones and brassiness for brighter, cleaner color.
Made with nourishing ingredients like squalane, moringa, açai, and argan oil, it hydrates, smooths, and revives faded highlights, leaving your hair soft, shiny, and beautifully balanced. Perfect for highlighted, colored, natural blonde, or white hair that needs a fresh, radiant boost.
Violet Shampoo
Still looking for help? View all our FAQs Here
We offer free shipping on orders over $49 across Canada and the Continental United States. Orders below $49 are shipped at a flat rate of $10.
Our team will typically ship your order within 24 hours. When your package leaves our warehouse, you’ll receive an email with your tracking information.
Most customers receive their order within 2–7 business days from the date of purchase, depending on the destination.













Sulfate-Free
Paraben-Free
Gluten-Free

Which one is right for you?
Blacklight Violet Shampoo eliminates up to 100% brassy yellow tones.
See the difference
Brassy and warm to cool and balanced. Our neutralize purple products counteract unwanted yellow and orange tones — keeping blonde, silver, and lightened hair looking fresh.
Before
After
Frequently asked questions
Questions about the Violet Shampoo? Find our most frequently asked questions here. Still need help? Contact us.
Use the Blacklight Blonde Science Violet Shampoo 1–2 times a week. On other wash days, use a sulfate-free shampoo like our Hydrating Shampoo. Using it every wash can leave a lilac tint and dry out lightened hair. If yellow tones are strong, go up to 3 times a week until your tone is corrected.
Leave the Blacklight Blonde Science Violet Shampoo on for 1–3 minutes, then rinse and follow with the Violet Conditioner. Start with 1 minute on very light, fine or porous hair, since it absorbs pigment faster. Don’t leave it on longer than recommended; if a lilac tint appears, one wash with a regular shampoo removes it.
No, not when used as directed. The Blacklight Blonde Science Violet Shampoo deposits just enough pigment to cancel yellow. A temporary lilac tint can appear on very light or porous hair if it’s left on too long or used every wash, and one wash with a regular shampoo removes it.
Yes. The Blacklight Blonde Science Violet Shampoo is ideal for grey, white and silver hair that turns yellow from sun, hard water or pollution. Use it 1–2 times a week for a brighter, cleaner silver tone.
It tones and cares at the same time. The Blacklight Blonde Science Violet Shampoo is sulfate-free and colour-safe, with a hydrating base of violet pigments, squalane, moringa and argan oil, açai extract so it neutralizes yellow without drying out lightened hair. It was developed in our Montréal lab with professional colourists, the team behind Oligo Professionnel salon products since 1986.
The neu [neutralize] and Save 25% Collection















