NIOXIN System 4 Shampoo & Conditioner Prepack 33.8 fl oz – For Color‑Treated, Damaged Hair | Niacinamide & Biotin, Pumps Included

NIOXIN System 4 Shampoo & Conditioner Prepack is a two‑step professional kit formulated to cleanse, fortify and add visibly thicker body to color‑treated, dry, damaged hair with progressed thinning.

This prepack pairs NIOXIN’s cleansing and conditioning technologies in full‑size 33.8 fl oz bottles (pumps included) to prepare the scalp and strengthen strands. The regimen is built to remove pore‑clogging sebum and environmental residue, support moisture balance, and help reduce breakage so hair looks fuller and feels more resilient while preserving color. It’s the first two steps of a three‑part NIOXIN protocol, designed to amplify hair structure when used consistently.

How does System 4 help color‑treated hair without stripping dye?

The formula uses Pro‑Color Shield and gentle surfactants to lift oils and debris without aggressively fading color. Conditioning ingredients restore moisture and shield cuticles so dyed hair maintains vibrancy while gaining thickness cues.

• Pro‑Color Shield technology reduces color loss during cleansing
• Mild cleansers remove excess sebum and styling residue
• Conditioner helps reseal cuticles and protect tone
• Pump dispensers allow controlled dosing to limit overwashing

What specific results can I expect and how soon?

Independently measured users reported increased thickness and density with regular use; many notice improved fullness within about 30 days. Results depend on consistent application and following the complete regimen, including the leave‑in or in‑clinic step if recommended.

• Visible thickening and fuller appearance reported by users in clinical testing
• Improved strand resilience and reduced breakage with ongoing use
• Enhanced scalp cleanliness that supports healthier hair growth environment
• Maintenance of color vibrancy through protective ingredients

Which ingredients support scalp and strand health?

NIOXIN System 4 combines targeted actives like niacinamide and biotin with botanicals and antioxidants to nourish the scalp and fortify hair structure. The shampoo focuses on derma‑purifying action while the conditioner restores moisture balance using Amp technology for lightweight resilience.

• Niacinamide for scalp circulation support and barrier function
• Biotin to strengthen hair cortex and reduce breakage
• Antioxidants and UV protecting agents to defend color and fiber
• Lightweight conditioning system that avoids weighing down fine, thinning hair

How should I use the two bottles for best effect?

Use both products as part of a routine: shampoo to deeply cleanse the scalp first, then apply the conditioner mid‑length to ends for balanced moisture and density protection. Pumps are included for measured application; follow with the brand’s leave‑in or treatment step for a full three‑part approach.

• Apply shampoo to wet hair, lather into the scalp, then rinse thoroughly
• Work conditioner through lengths, leave briefly, then rinse for lightweight moisture
• Use regularly and complement with NIOXIN step three for optimal results
• Pumps help control product amount and reduce waste

Who is this for: NIOXIN System 4 is tailored for people with color‑treated, dry or damaged hair experiencing progressed thinning who want a science‑driven cleansing and conditioning system. It’s suited to anyone seeking to improve scalp hygiene, reduce strand breakage and achieve a fuller, thicker look without sacrificing hair color. This prepack is ideal for salon clients, at‑home maintenance, or those beginning a structured thinning‑hair protocol.

Ingredients

Shampoo: WATER/EAU, SODIUM LAURETH SULFATE, SODIUM LAURYL SULFATE, CITRIC ACID, SODIUM CHLORIDE, PPG-2 HYDROXYETHYL COCO/ISOSTEARAMIDE, SODIUM CITRATE, SODIUM XYLENESULFONATE, SODIUM BENZOATE, SALICYLIC ACID, SODIUM HYDROXIDE, TETRASODIUM EDTA, MENTHA PIPERITA (PEPPERMINT) OIL, MENTHA ARVENSIS LEAF OIL, MENTHOL, TRISODIUM ETHYLENEDIAMINE DISUCCINATE, METHYLPARABEN, POLYQUATERNIUM-10, PROPYLENE GLYCOL, CAMELLIA SINENSIS LEAF EXTRACT, CYSTINE BIS-PG-PROPYL SILANETRIOL, BIOTIN, LECITHIN, NIACINAMIDE, PANTHENOL, TOCOPHERYL ACETATE, FOENICULUM VULGARE (FENNEL) FRUIT EXTRACT, SODIUM ACETATE, ISOPROPYL ALCOHOL, YELLOW 5, YEAST EXTRACT/ EXTRAIT DE LEVURE, ACER SACCHARUM (SUGAR MAPLE) EXTRACT, CITRUS LIMON (LEMON) PEEL EXTRACT, SACCHARUM OFFICINARUM EXTRACT, VACCINIUM MYRTILLUS LEAF EXTRACT, BLUE 1, CITRUS AURANTIUM DULCIS (ORANGE) FRUIT EXTRACT, RED 33, POTASSIUM SORBATE. Conditioner: Aqua/Water/Eau, Cetyl Alcohol, Stearamidopropyl Dimethylamine, Stearyl Alcohol, Quaternium-18, Phenoxyethanol, Benzyl Alcohol, Cetearyl Alcohol, Hydroxypropyl Guar, Glyceryl Stearate, Oleyl Alcohol, Propylparaben, Polysorbate 60, Mentha Piperita (Peppermint) Oil, Mentha Arvensis Leaf Oil, Menthol, Propylene Glycol, Methylparaben, EDTA, Hydroxyethylcellulose, Citric Acid, Camellia Sinensis Leaf Extract, Quaternium-80, Cystine Bis-PG-Propyl Silanetriol, Biotin, Lecithin, Niacinamide, Panthenol, Tocopheryl Acetate, Foeniculum Vulgare (Fennel) Fruit Extract, Acer Saccharum (Sugar Maple) Extract, Citrus Limon (Lemon) Peel Extract, Saccharum Officinarum/Sugar Cane Extract/Extrait de canne à sucre, Vaccinium Myrtillus Leaf Extract, Faex Extract/Yeast Extract/Extrait de levure, Citrus Aurantium Dulcis (Orange) Fruit Extract, Maltodextrin, Blue 1 (CI 42090), Potassium Sorbate, Sodium Benzoate, Ethylparaben, Butylparaben