BosleyMD BosDefense Hair Thinning Prevention Kit Rating Based on Amazon Reviews

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Product is rated as #90 in category Shampoo comparisons


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  • Brand: BosleyMD
  • Analyzed: 754 reviews. Ranks in top-10% by number of reviews
  • Mentions: 62 positive. Ranks in top-90% by share of positive mentions
  • Amazon rating: 4.2. Ranks in top-90% by Amazon ratings
BosleyMD BosDefense Hair Thinning Prevention Kit photo
BosleyMD BosDefense Hair Thinning Prevention Kit

Price History



The BosleyMD BosDefense Hair Thinning Prevention Kit is a popular shampoo on Amazon.


    Provides fuller and voluminous hair, improves hair health, strengthens thinning hair, enhances shine, and reduces hair thinning.


    Shows moderate effectiveness on damaged hair, hair growth, and hair manageability. Contains natural ingredients but may have chemical content. Some users experience no reduction in hair dryness.


    Less effective in cleaning hair, improving hair softness or silkiness, controlling frizz, preserving hair color, addressing oily hair, and preventing hair tangling. Mixed results on effectiveness against dandruff.

    • Overall, customers praise this shampoo for its ability to improve hair thickness and health, but it may not meet expectations in certain areas such as cleaning, softness, and frizz control.
Shampoo AttributeBG RatingNumber of MentionsPositive Review PercentageAttribute Ranking
Provision of fuller and voluminous hair4.96093%top-5%
Improvement of hair health4.915593%top-5%
Effectiveness in hair strengthening4.62891%top-10%
Effect on shiny hair4.53987%top-30%
Effectiveness on thinning hair4.427284%top-10%
Effectiveness on thinning hair4.427284%top-10%
Average performance
Natural Ingredients3.91283%top-40%
Effectiveness on Damaged hair3.74061%top-40%
Effectiveness on Hair Growth3.712965%top-20%
Shampoo chemical content3.71659%top-40%
Hair dryness reduction after shampooing3.611223%bottom-40%
Effect on hair manageability3.61968%top-50%
Effectiveness on hair loss3.525453%top-20%
Moisturizing effect3.5475%top-50%
Curly or Wavy hair users shampoo experiences3.51080%top-40%
Impact on scalp health3.36860%top-40%
Biotin in shampoo3.0863%top-40%
Effectiveness in residue or buildup removal3.02043%bottom-20%
Effectiveness in cleaning hair2.92966%bottom-20%
Effect on hair softness or silkiness2.93173%bottom-10%
Effectiveness on Frizz Control2.81828%bottom-20%
Effectiveness in hair color preservation2.81275%bottom-40%
Effectiveness on oily hair2.7750%bottom-30%
Effect on hair tangling2.61836%bottom-40%
Effectiveness on dandruff2.51132%top-30%
Too few reviews:
Effectiveness on flaky scalpfrew reviews
Degreasing propertiesfrew reviews
Effect on blonde hair shadesfrew reviews
Purple Shampoo propertiesfrew reviews
Ash color maintenancefrew reviews
Effect on highlightsfrew reviews
Bleached hair maintenancefrew reviews
Effectiveness in providing toning benefitsfrew reviews
Ability to neutralize brassy tonesfrew reviews
Sulfate-free shampoofrew reviews
Squeaky clean hair feeling after shampoo usefrew reviews
Tinting effect on hair shadesfrew reviews
Effectiveness on fungal infectionsfrew reviews
Effectiveness on psoriasisfrew reviews
Effectiveness on seborrheic dermatitisfrew reviews

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How we determined rating score for BosleyMD BosDefense Hair Thinning Prevention Kit

We strongly believe that the best information about a shampoo's performance comes from actual users. This includes details like how well it works for different hair types, health benefits, look and feel, and any side effects. Our analysis and scoring method includes:
  • Using AI to collect shampoo reviews from major online stores. We analyze these reviews to find out what customers care about the most, like how the shampoo works for different hair types, its scent, and its effectiveness in treating scalp and hair issues such as dryness, flakiness, or oiliness. We also look at other factors like how well it moisturizes, adds shine, and affects hair tangling.
  • Once we identify the main topics customers talk about, which we call product attributes, we use special AI algorithms to track every mention of these attributes in each shampoo we study.
  • For each shampoo and attribute, we calculate several metrics, like how often it's mentioned, its percentage of all reviews, and the balance of positive and negative feedback. We then compare these numbers across different shampoos to create a comparative score for each one, done separately for every attribute.
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