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Updated: Jul 16, 2026

Mechanical and Controlled PRP Injections in Patients Affected by Androgenetic Alopecia
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A 6-Month Prospective, Open-Label, Randomized Study Showing Increased Hair Growth Rate in Women Using Multi-Targeting

Rubaina Dang1, Raja K Sivamani1,2,3, Adina Hazan4

  • 1Integrative Research Institute, Sacramento, CA, USA.

Dermatology and Therapy
|July 14, 2026
PubMed
Summary

This study shows that daily use of tailored hair growth nutraceuticals (HGNs) significantly increases linear hair growth rate (LHGR) and improves hair counts in women with hair thinning. These botanical-based supplements enhance overall hair health across different life stages.

Keywords:
Hair countHair growth nutraceuticalsHair thinningLinear hair growth rate

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Area of Science:

  • Dermatology
  • Trichology
  • Nutraceutical science

Background:

  • Hair thinning is a common, multifactorial issue for women, often linked to reduced linear hair growth rate (LHGR).
  • Hair growth nutraceuticals (HGNs) utilize botanical complexes to target hair thinning causes specific to life stages.
  • Previous research indicated HGNs improve hair quality and thickness, but quantitative LHGR changes were unevaluated.

Purpose of the Study:

  • To quantitatively assess the impact of life-stage-tailored HGNs on LHGR in women experiencing hair thinning.
  • To evaluate the efficacy of HGNs on other objective hair growth parameters and subjective self-assessments.

Main Methods:

  • A 6-month prospective study involved 180 women (aged 18-70) with self-reported hair thinning, assigned to one of four tailored HGN groups.
  • Objective hair analysis using Canfield HairMetrix® measured LHGR, hair counts, and anagen/telogen phases at baseline, 90, and 180 days.
  • Self-assessment questionnaires captured participant perceptions of hair improvement.

Main Results:

  • 150 participants completed the study; daily HGN intake led to statistically significant increases in LHGR at 90 and 180 days across all groups.
  • Significant increases in anagen hair counts, total hair counts, and terminal hair counts were observed.
  • Total scalp coverage significantly improved, correlating with positive self-reported outcomes.

Conclusions:

  • Consumption of targeted HGNs significantly improves LHGR and objective hair parameters in women with hair thinning.
  • These findings support the use of tailored HGNs as an effective strategy for enhancing hair growth rate and overall hair health.
  • The study provides quantitative evidence for HGN efficacy in improving hair growth across diverse life stages.