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Glossary Hair Parameters

measurable characteristics of hair like thickness and growth rate

Hair parameters refer to the various measurable characteristics of hair, such as its thickness, density, growth rate, and strength. These parameters are important for both understanding hair health and diagnosing conditions like alopecia, as well as for developing hair care products and treatments.

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Research

5 / 1000+ results

research Evaluation of biophysical skin parameters and assessment of hair growth in patients with acne treated with isotretinoin

37 citations , January 2013 in “Postepy Dermatologii I Alergologii”

This article discusses isotretinoin for severe acne vulgaris, noting its effectiveness but also highlighting significant side effects on skin, mucous membranes, and hair; it reports no new clinical results.

research A Standardized In Vitro Framework for Evaluating Hair Care Products: Hair Parameters and Efficacy Performance

June 2026 in “Cureus”

This study proposed a new standardized in vitro framework using human hair tresses to evaluate cosmetic hair product performance and found significant improvements in hair breakage, tensile strength, shine, volume, and frizz control compared to a control group without such changes.

research Reimagining Hair Science: A New Approach to Classify Curly Hair Phenotypes via New Quantitative Geometrical & Structural Mechanical Parameters

April 2023

This study identified new geometric and mechanical parameters for curly and kinky/coily hair, which may inform more effective personal care products tailored to these hair types.

research Effect of dietary supplementation with INVERSION® femme on slimming, hair loss, and skin and nail parameters in women

11 citations , September 2007 in “Advances in therapy”

This study found that the oral supplement INVERSION® Femme significantly reduced weight and hair loss and improved skin and nails in overweight women.

research Human scalp hair: geometry, biochemistry, growth parameters and mechanical characteristics

January 2016 in “Belarusian State Pedagogical University repository (Belarusian State Pedagogical University)”

This research suggests that geometric classification of hair into fewer groups may be more reliable and useful for studying hair characteristics, rather than racial descriptions, especially in medical and forensic applications.

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Community Join

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community Efficacy and Tolerability of N-Acetyl-Cysteine for Treatment of The Early-onset Androgenetic Alopecia in Men

26 upvotes 4 years ago

N-Acetyl-Cysteine (NAC) was found to improve hair parameters in men with early-onset androgenetic alopecia, showing increased terminal hair count and decreased vellus hair count, with good tolerability. NAC, used alone or with minoxidil, may help due to its antioxidant properties, though its effectiveness can vary among individuals.

community Dutasteride and male fertility

in Finasteride/Dutasteride 20 upvotes 5 months ago

Dutasteride may affect semen parameters but not significantly enough to impact fertility unless baseline fertility is already low. Finasteride and minoxidil are used for hair regrowth, with no side effects reported by one user.

community Hair Growth Caps and Helmets Research

32 upvotes 7 months ago

Hair growth caps and helmets using low-level laser therapy (LLLT) show potential for treating androgenetic alopecia, but more research is needed. Users often combine these devices with treatments like minoxidil and finasteride for better results.

community Solving Hair Loss with Research at MIT

in Research/Science 595 upvotes 1 year ago

Hair loss treatments like minoxidil, finasteride, TDM-105795, and PP405. MIT is hosting a hackathon to find innovative hair loss solutions.

community Creatine, my hair loss, and my DHT levels. An anecdote with lab values.

165 upvotes 1 year ago

Increased hair loss after starting a 10g daily creatine regimen, possibly linked to elevated DHT levels despite dutasteride use. Stopping creatine reduced shedding, but the exact cause is uncertain, with discussions on exercise and lifestyle impacts.

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Learn

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learn Osteopontin

signaling protein that, when suppressed, may grow hair by reducing inflammation and stem cell loss

learn Hair Fibers

cosmetic product that temporarily makes hair appear thicker

Do hair fibers really make thinning hair look fuller, or is it just an illusion? Hair fibers create an optical illusion of fullness but do not actually thicken hair.
How do you apply hair fibers correctly so they stay in place all day? Apply hair fibers to clean, dry hair and use a setting spray for better hold.
Can hair fibers be used along with medical treatments like minoxidil or finasteride? Yes, hair fibers can be used with minoxidil or finasteride without any chemical interaction.
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learn Hair Multiplication

extract, clone, and reinsert your own hair cells

learn Hair Transplant

Hair transplantation moves DHT-resistant follicles from a donor area (back and sides of the scalp) into thinning or bald areas. The transplanted hair is generally permanent, though surrounding native hair can keep thinning.

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Clinics

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Experts

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SMP Specialist
Hairo Fallas
Newark, NJ, United States

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Hairo Fallas