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Nioxin System 4 Comparison - September 2025
| 1 Best Choice  9.8Exceptional | 2  9.7Exceptional | 3  9.6Exceptional | 4  9.3Excellent | 5  9.1Excellent | 6  9.0Excellent |
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ModelNioxin System 4 Scalp + Hair Shampoo | For Colored or Damaged Hair with Progressed Thinning | With Niacinamide and Biotin | 10 Fl oz. | Model Nioxin System 4 Scalp + Hair Conditioner | For Colored or Damaged Hair with Progressed Thinning | With Niacinamide and Biotin | 10 Fl oz. | Model Nioxin Scalp + Hair Thickening System 4 |For Colored or Damaged Hair with Progressed Thinning| With Niacinamide and Biotin | Full Size| 3 Month Supply | Model Nioxin System 4 Shampoo & Conditioner Prepack | For Color or Damaged Hair with Progressed Thinning | With Niacinamide and Biotin | Pumps Included | 33.8 Fl oz. | Model Nioxin Scalp + Hair Thickening System 4 | For Colored or Damaged Hair with Progressed Thinning| With Niacinamide and Biotin | Trial Size | 1 Month Supply | Model Nioxin System 4 Scalp + Hair Thickening Treatment | Serum for Colored or Damaged Hair with Progressed Thinning | 3.4 Fl oz. |
BrandNIOXIN | Brand NIOXIN | Brand NIOXIN | Brand NIOXIN | Brand NIOXIN | Brand NIOXIN |
Reviews | Reviews | Reviews | Reviews  | Reviews | Reviews |
Features | |||||
Worth the money 8.9 | Worth the money 7.9 | Worth the money 7.4 | Worth the money 7.0 | Worth the money 7.0 | Worth the money 7.0 |
Tech Specs | |||||
product dimensions2.36 x 1.77 x 8.62 inches 12 ounces | product dimensions 2.36 x 1.77 x 8.62 inches 10.08 ounces | product dimensions 5 x 2.44 x 8.86 inches 1.94 Pounds | product dimensions 9 x 3 x 11 inches 4.59 Pounds | product dimensions 4.33 x 2.17 x 7.28 inches 14.07 ounces | product dimensions 1.97 x 1.58 x 6.89 inches 3.36 ounces |
Review | Review - | Review - | Review - | Review - | Review - |
Available On   | Available On | Available On  | Available On | Available On  | Available On |
Our Top 3 Picks
Here are the top 3 recommended products with more information to help you find the right product for you
9.8
1NIOXINNioxin System 4 Scalp + Hair Shampoo | For Colored or Damaged Hair with Progressed Thinning | With Niacinamide and Biotin | 10 Fl oz.
8.9 worth the moneyWhy we love it
Hydrates and soothes sensitive scalps.
Enhances volume for thinning hair.
Leaves hair soft and silky.
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9.7
2NIOXIN
Nioxin System 4 Scalp + Hair Conditioner | For Colored or Damaged Hair with Progressed Thinning | With Niacinamide and Biotin | 10 Fl oz.
7.9 worth the moneyWhy we love it
Strengthens color-treated, thinning hair effectively.
Recommended by stylists for thinning issues.
Affordable with subscription options.
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9.6
3NIOXIN
Nioxin Scalp + Hair Thickening System 4 |For Colored or Damaged Hair with Progressed Thinning| With Niacinamide and Biotin | Full Size| 3 Month Supply
7.4 worth the moneyWhy we love it
Reduces hair breakage effectively.
Promotes a healthy scalp environment.
Adds volume and softness to hair.
Our ranking system
At BestChoice.com, our team curates a selection of top products from a vast array available online, using a sophisticated ranking system based on carefully defined criteria.While traditional hands-on testing has its merits, our use of AI technology offers distinct advantages. AI allows us to process and analyze vast amounts of data from multiple sources, providing a comprehensive view that goes beyond what manual testing can achieve. This approach enables us to deliver insights that are aligned with current trends and consumer preferences, ensuring our reviews are both relevant and up-to-date.
Features
Our AI-driven analysis examines key attributes, capabilities, and other critical factors tailored to each product category. This method allows us to assess effectiveness from various perspectives, ensuring a well-rounded evaluation.
Consumer Reviews
We aggregate and evaluate consumer feedback from across the internet, giving weight to ratings and reviews that reflect the most reliable insights. AI enhances this process by filtering and prioritizing data, offering a balanced view without the need for direct personal endorsements.
Popularity
Our system also considers the popularity of products, analyzing factors such as market presence, reputation, and user satisfaction. By leveraging AI, we capture a comprehensive picture of a product's standing in the market, which may not always be evident through traditional testing.
Value for money
AI allows us to compare products based on attributes like price, specifications, and user feedback, helping to determine their value for money. This data-driven approach offers an efficient and reliable way to assess how products stack up against one another in terms of cost-effectiveness.
