Oligo Professionnel Blacklight Violet Purple Shampoo for Blondes — 8.5 oz, Sulfate-Free & Hydrating with Argan Oil

Oligo Professionnel Blacklight Violet Shampoo is a sulfate-free purple shampoo formulated to neutralize yellow tones and refresh faded highlights on blonde, bleached, or gray hair.

Designed for anyone wearing blonde, highlighted, platinum, or silver shades, this vegan formula uses violet pigments and hydrating ingredients like argan oil to brighten brass-prone hair without stripping moisture. The sulfate-free base helps maintain color and integrity while gently cleansing, so you can use it regularly to preserve a cooler, cleaner-looking tone between salon visits.

How does this shampoo reduce yellowing and brass?

The shampoo deposits violet pigments that counteract warm, yellow undertones through color theory—purple neutralizes yellow on the color wheel. Instead of bleaching out tones, it subtly shifts warm highlights toward a cooler, more neutral appearance while you shampoo.

• Concentrated violet pigments for immediate neutralization
• Even distribution in a sulfate-free base to avoid over-drying
• Works progressively with repeated use to maintain tone

Will it dry out or damage my hair?

Oligo Professionnel Blacklight combines conditioning agents like argan oil with a gentle cleansing system, so it cleans without stripping natural oils. The formula is vegan and sulfate-free, which reduces harsh detergent damage often associated with traditional clarifying shampoos.

• Argan oil helps restore softness and manageability
• Sulfate-free surfactants minimize cuticle abrasion
• Suitable for frequent use when balanced with a regular conditioner

How should I use it for best results?

Apply to wet hair, lather, and leave on for 1–5 minutes depending on desired toning intensity; longer is more intense. Rinse thoroughly and follow with your preferred conditioner or mask to lock in moisture and smooth the hair surface.

• Short leave-in (1 minute) for light maintenance
• Medium leave-in (2–3 minutes) for noticeable toning
• Longer (up to 5 minutes) for stubborn brassiness, test first

How often should I use purple shampoo without affecting color?

Frequency depends on hair porosity and how quickly warm tones return. Many users find 1–2 times weekly maintains cooler blonde; those with very porous or bleached hair may use it more often, adjusting leave-in time to suit sensitivity.

• Normal maintenance: once per week
• For faster brassiness: twice weekly with shorter leave-in time
• Always follow with conditioner to restore hydration

Who is this for: Oligo Professionnel Blacklight Violet Shampoo is built for blondes—natural, highlighted, or bleached—plus anyone with silver, white, or gray hair aiming to reduce yellow tones and refresh faded highlights. It’s also suitable for users seeking a vegan, sulfate-free toning option that includes nourishing ingredients like argan oil for added hydration and manageability. If you want to preserve cool tones between professional services while keeping hair soft, this shampoo is a practical addition to your color-care routine.