Ingestion of NUTRAFOL® supplement over a six (6) month period will strengthen and promote the growth of hairs in female subjects, ages 21-65 years of age with self-perceived thinning hair when compared to using the placebo tablet. The primary endpoints will be favorable analysis using the Canon Power Shot G16 with 3GEN Dermlite FOTO Pro for macrophotography hair count analysis of terminal and vellus hairs at the three (3) month and six (6) month visits. The secondary endpoints will be favorable improvement in terminal hair diameter measured by the Dino-Lite Digital Microscopic, favorable improvement in the Hair Check device hair bundle measurement for Hair Mass Index (HMI), favorable improvement in the Blinded Physician Global Hair Assessments for hair growth and hair quality, statistically significant positive feedback on the Women's Hair Loss Quality of Life, Self-Assessment and Subject Treatment Satisfaction and Ease of Use questionnaires after six (6) months of NUTRAFOL® supplement or placebo ingestion. See Table of Study Procedures.