Oligo Professionnel Blacklight Blue Shampoo 8.5 oz — Sulfate-Free Argan Oil Toner to Neutralize Brass for Blonde & Highlighted Hai

Blacklight Blue Shampoo by Oligo Professionnel is a sulfate-free, argan oil and amino-acid enriched blue toner designed to neutralize brass and refresh blonde, bleached, highlighted, or light brown hair in a single weekly treatment.

Keep your color looking crisp between salon visits with a gentle blue-toning shampoo formulated for hair levels 5–7. This vegan formula combines moisturizing amino acids and argan oil to tone warm undertones while helping maintain softness and manageability. Free from sulfates, salts, and parabens, it works as a targeted anti-brass step in your routine without stripping color or over-drying strands.

How does this shampoo neutralize brass in blonde or highlighted hair?

Blue pigments counteract orange and warm-yellow tones by depositing cool-toned dye molecules that cancel unwanted brassiness. Use once weekly or whenever warmth appears to gradually shift your tone back toward a cleaner, cooler blonde.

• Contains blue toning pigments tuned for light brown to medium blonde (levels 5–7).
• Apply on damp hair, lather, leave 2–5 minutes, then rinse for controlled toning.
• Repeat if needed for stronger neutralizing effect; best used sparingly to avoid over-toning.

Will this formula dry out my hair or strip color?

The Blacklight formula is designed to tone without aggressive cleansing agents; it’s sulfate- and salt-free to protect color integrity. Argan oil and eleven amino acids help preserve moisture and support strand resilience during use.

• Sulfate-, salt-, and paraben-free to reduce fading and dryness.
• Argan oil adds conditioning to counteract potential dryness from pigment.
• Amino acids help maintain elasticity and surface smoothness after rinsing.

How do I use Blacklight Blue Shampoo in my at-home routine?

Use Blacklight as a corrective step rather than daily shampoo. Apply to damp hair, work into a lather, and rinse; leave on 2–5 minutes depending on the level of brassiness, then rinse thoroughly. For best results, pair with Blacklight Blue Conditioner and wear gloves to prevent staining hands or nails.

• Frequency: once a week or as needed when warm tones appear.
• Timing: 2–5 minute processing time calibrates intensity of toning.
• Pairing: follow with the matching conditioner to lock in moisture and tone.

What hair types and color levels benefit most from this product?

Blacklight is formulated for light brown to medium blonde shades and is safe for color-treated, highlighted, bleached, and natural blonde hair. It tones brass while nourishing strands so it suits fine to medium textures that need color correction without heavy buildup.

• Best for levels 5–7 (light brown to medium blonde).
• Suitable for highlighted, bleached, and naturally blonde hair.
• Works well on fine or porous hair that needs gentle toning and moisture.

Who is this for: Oligo Professionnel Blacklight Blue Shampoo is for anyone wanting to refresh faded highlights, neutralize warm undertones, and preserve a cooler blonde shade between salon visits. It’s a practical, salon-quality toning option for those seeking a gentle, conditioning formula that won’t compromise color or texture. Ideal for users who prefer vegan, sulfate-free products and who will incorporate toning shampoos into a measured at-home maintenance routine.