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Did you mean Hair Follicle Density?

Glossary Hair Follicle Density

number of hair follicles per unit area of skin

Hair Follicle Density, also known as Follicular Density or Hair Density, refers to the number of hair follicles per unit area of the scalp or skin. It is typically measured in follicles per square centimeter. This metric is important for assessing hair health, diagnosing conditions like alopecia, and planning hair restoration treatments. Higher follicle density generally indicates thicker hair coverage, while lower density can be a sign of thinning hair or hair loss.

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Research

5 / 1000+ results

research A Comparison of Reticle Size to Determine Follicular Unit Density in Hair Restoration

February 2015 in “Dermatologic Surgery”

This article discusses various affiliations of the authors with no reference to new research findings.

research Force-triggered density gradient sedimentation and cocktail enzyme digestion treatment for isolation of single dermal papilla cells from follicular unit extraction harvesting human hair follicles

November 2024 in “Stem Cell Research & Therapy”

A new method improves the isolation of hair follicle cells for better hair growth research.

Donor Site of Follicular Unit Excision Hair Transplantation: The Relationship Between Appearance and Actual Hair Density, and Hair Diameter

research Donor site of follicular unit excision hair transplantation: the relationship between appearance and actual hair density, and hair diameter

2 citations , February 2020 in “Journal of Plastic Surgery and Hand Surgery”

This study found that donor sites with higher hair density and thicker hair diameter had a better appearance after follicular unit excision in men with androgenic alopecia.

Assessment of Efficacy of Platelet-Rich Plasma Augmentation in Follicular Unit Extraction for Hair Density Improvement: A Prospective Study

research Assessment of Efficacy of Platelet-Rich Plasma Augmentation in Follicular Unit Extraction in Hair Density Improvement: A Prospective Study

October 2025 in “Journal of Pharmacy And Bioallied Sciences”

This study concluded that platelet-rich plasma significantly improves hair density and patient satisfaction for individuals undergoing follicular unit extraction for androgenetic alopecia compared to those receiving the surgery alone.

Force-Triggered Density Gradient Sedimentation and Cocktail Enzyme Digestion Treatment for Isolation of Single Dermal Papilla Cells from Follicular Unit Extraction Harvesting Human Hair Follicles

research Force-triggered density gradient sedimentation and cocktail enzyme digestion treatment for isolation of single dermal papilla cells from follicular unit extraction harvesting human hair follicles

October 2024

This study found that new methods for isolating human dermal papilla cells were more efficient than traditional methods, maintaining higher levels of specific markers and improving the cells' research potential.

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Community Join

5 / 1000+ results

community Pelage PP405: New Hair Growth from Inactive Follicular Units - Phase 2a results at AAD 2026

1080 upvotes 5 months ago

PP405, a topical treatment, shows promise for hair growth by activating inactive follicles, with 66% of participants experiencing positive results. The treatment is well-tolerated and may proceed directly to Phase 3 trials, offering a potential alternative to minoxidil and finasteride.

community Study shows significant improvement in hair with topical minoxidil and oral Vitamin d compared to just topical minoxidil alone.

in Minoxidil 206 upvotes 1 year ago

Taking oral Vitamin D alongside topical minoxidil improves hair density more than using minoxidil alone. Users discuss Vitamin D dosages, potential benefits, and the importance of combining it with Vitamin K2.

community 4600 FUT Hair Transplant 16 month post second surgery progress

in Transplants 3725 upvotes 1 year ago

The user had two FUT hair transplants with 4,600 grafts for increased density, costing about $11,000 each, and has been using oral minoxidil and finasteride for over five years without side effects. The results are natural-looking with no visible scarring, and the user finds the procedure valuable despite the cost.

community Highly recommend buying a microscope (see pictures)

in Treatment 44 upvotes 8 months ago

A user recommends using a microscope to assess hair density and track hair loss progress, finding it useful for evaluating treatment effectiveness, particularly with dutasteride and minoxidil. They advise against obsessing over hair loss and emphasize focusing on other meaningful life aspects.

community PP405 Phase 2a press release with early results

700 upvotes 1 year ago

PP405 shows promise in hair regrowth, with 31% of participants experiencing over 20% increase in hair density after 8 weeks. Phase 3 trials are expected in 2026, with potential market availability by 2029-2031.

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Learn

7 / 66 results

learn Alfatradiol

Alfatradiol: Can it help if my hair loss is linked to DHT? The one randomised trial of topical alfatradiol — in 103 women — found hair thickness and density essentially unchanged after six months, while minoxidil improved both; its authors credited alfatradiol with slowing hair loss rather than regrowing hair. Laboratory work supports a local effect on follicular DHT, but no controlled trial in men appears to have been published.