Oligo Professionnel Blacklight Blue Shampoo for Blonde & Highlighted Hair — Sulfate-Free, Argan Oil + 11 Amino Acids — 8.5 oz

If your blonde, highlighted, or light brown-to-medium blonde hair is picking up warm, unwanted tones, this blue shampoo is formulated to correct and revive faded color. Enriched with argan oil and a blend of 11 amino acids, the formula cleanses gently without sulfates, salts, or parabens and supports smoother, more vibrant-looking hair. Use it periodically as a targeted toner to maintain cooler, crisper highlights between salon visits.

How quickly will I see the toning effect?

Most users notice immediate visual cooling after a single application, especially on faded highlights and brassy sections. Results vary with hair porosity, previous color, and how long you leave the product on. Start with a short development time and adjust as needed.

• Apply to damp hair and lather evenly for best coverage.
• Leave on for 2–5 minutes on average; longer for stronger toning.
• Use once a week or when brassiness returns to maintain tone.

Will this shampoo moisturize or dry out my hair?

Blacklight Blue Shampoo combines moisturizing argan oil with an amino-acid complex designed to support hair strength and softness while toning. Because it’s free of sulfates and salts, it cleanses without stripping essential moisture. Follow with the matching Blacklight conditioner to restore smoothness and manageability.

• Argan oil provides lightweight nourishment and shine.
• 11 amino acids help reinforce hair structure and reduce breakage.
• Sulfate-, salt-, and paraben-free to minimize dryness and irritation.

How should I incorporate it into my hair routine?

Add Blacklight Blue Shampoo as a maintenance step rather than daily cleansing to avoid over-toning. Use it once weekly or as needed depending on how quickly your hair develops warm tones. For best results, pair with Blacklight Blue Conditioner and wear gloves during application to prevent staining hands or nails.

• Wet hair thoroughly, apply, lather, and rinse; repeat if necessary.
• Adjust leave-in time (2–5 minutes) for subtle to stronger toning effects.
• Complete the regimen with the Blue Conditioner for hydration and longevity.

Is this safe for color-treated or fragile hair?

Formulated for levels 5–7 (light brown to medium blonde), the shampoo targets color-treated, bleached, highlighted, and natural blonde hair without harsh surfactants. Its vegan formula and conditioning actives aim to protect and refresh treated hair, but always patch-test if you have a sensitive scalp or compromised hair. Consult your stylist for use on very porous or heavily processed hair.

• Designed with salon-grade care and 30 years of Oligo expertise.
• Vegan formula suitable for routine color maintenance.
• Recommended for mid-lift to light blonde color levels; seek pro advice for extreme lightening.

Who is this for: Blacklight Blue Shampoo is ideal for anyone with highlighted, bleached, white, or natural blonde hair and for light brown shades aiming to neutralize brassiness and refresh faded highlights. It’s particularly useful for people who prefer sulfate-free care and want a salon-grade toning boost at home. If you’re maintaining cooled-blonde tones between salon visits and value added moisture and amino-acid support, this product fits neatly into a targeted color-care routine.