oligo shampoo and conditioner

Many items are labeled suitable for all hair types. Some formulas additionally specify suitability for straight, wavy, curly, or coiled hair and call out specific needs such as highlighted or blonde hair, or dry and damaged strands.

Blue formulas are used to counter warm, brassy tones and refresh faded highlights. Violet formulas use violet pigments to neutralize yellow and brassy tones and help maintain a cooler, more vibrant blonde.

Apply shampoo to damp hair, lather, and rinse. Repeat if needed and leave the second application on for 1–5 minutes before rinsing. Follow with the matching conditioner. Use the shampoo when warm tones begin to reappear.

The nourishing duo advertises deep hydration and rejuvenation, infusion of nutrients and oils to strengthen hair and reduce breakage, restored natural shine and improved manageability, and color protection without harsh chemicals.