The rubber base is semi-circular in shape and this becomes more defined in the larger sizes

Long-lasting shine for a natural look

Gentle and Effective Zinc Oxide Formula: No more redness

If you dye your hair one color

Day 3 Redensifying

Nioxin Scalp Therapy Conditioner System 4 Size:10.1oz/300ml The rubber base is semi-circularNioxn Conditioner System 4 is designed for dry, damaged, color treated hair with progressed thinning. Clinically and dermatologically tested. The System 4 Conditioner is a lightweight conditioner that helps provide hair resilience, hydrates scalp and hair from root to tip. Use After using Nioxin System 4 Shampoo, gently massage Nioxin System 4 Conditioner into the scalp and hair, focusing on the ends. Leave on for 1 3 minutes for optimal results.