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Glossary Hair Porosity

hair's ability to absorb and retain moisture

Hair porosity refers to the hair's ability to absorb and retain moisture. It is determined by the condition of the hair cuticle, which can be low, medium, or high porosity. Low porosity hair has tightly bound cuticles that repel moisture, medium porosity hair has a balanced ability to absorb and retain moisture, and high porosity hair has gaps and holes in the cuticle that allow moisture to enter and escape easily. Understanding hair porosity is crucial for selecting appropriate hair care products and treatments.

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Research

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research Effects of ultraviolet rays and particulate matter on hair porosity in damaged hair

3 citations , June 2024 in “Journal of Cosmetic Dermatology”

This study investigated the effects of UV rays and particulate matter on hair porosity, finding that UV exposure increased porosity over time, and when combined with particulate matter, this effect was significantly enhanced in bleached hair.

research Porosity at Different Structural Levels in Human and Yak Belly Hair and Its Effect on Hair Dyeing

6 citations , May 2020 in “Molecules/Molecules online/Molecules annual”

This study found that while yak belly hair is chemically similar to human hair, its higher porosity and lower mechanical strength limit its usefulness as a substitute in hair dye development.

research Charge density alterations in human hair fibers: an investigation using electrostatic force microscopy

13 citations , March 2006 in “International Journal of Cosmetic Science”

The study found that a polymer treatment changes the charge on hair surfaces, making bleached hair smoother and less porous.

research A clinical evaluation of a permanent hair dye designed to reduce allergic contact dermatitis and hair damage

9 citations , July 2022 in “Journal of Cosmetic Dermatology”

In this study, an ammonia-free and PPD-free permanent hair dye was tested on 50 ethnically diverse females, showing no cases of contact dermatitis and significant improvements in hair shine, color, moisturization, porosity, and combability after two dyeing sessions.

research Thermoporometry measurements of human hair via differential scanning calorimetry

1 citations , September 2024 in “International Journal of Cosmetic Science”

This study found that thermoporometry measurements effectively assessed hair porosity, showing that bleaching increases overall pore volume by adding smaller pores, while prolonged bleaching leads to fewer but larger pores likely due to pore-merging.

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Community Join

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community Low Porosity Hair with hair fall - looking for help

3 upvotes 3 years ago

The user is experiencing hair fall and is using a nonsulfate Maui Hibiscus shampoo and conditioner, washing twice a week, and applying a warm mixture of castor and olive oil. They seek advice on a proper haircare regime and product recommendations for low porosity hair.

community Affordable shampoo and conditioner suggestions for long but thinning hair?

2 upvotes 11 months ago

A user with thinning, curly, dry hair is seeking affordable shampoo and conditioner recommendations. They are using oral minoxidil and apply argan oil, but dislike products with keratin and biotin, and another user suggests ketoconazole shampoo for added density and DHT blocking.

community How come some guys are half bald yet their hair is so healthy?

in Finasteride/Dutasteride 62 upvotes 1 year ago

A 22-year-old male experiencing diffuse thinning and frizzy hair has been using finasteride for nine months and is seeking advice on improving hair quality. Suggestions include using conditioners, biotin, rosemary oil, and addressing scalp conditions like seborrheic dermatitis or psoriasis, while finasteride may help reverse miniaturization and improve hair health.

community 24yr old student. 49 days(3rdFeb-24thMarch). Dates are below each pic

6 upvotes 5 months ago

A 24-year-old uses microneedling, tretinoin, topical and oral minoxidil, and oral finasteride for hair growth, noticing baby hair growth and initial side effects that resolved. Another user shares a similar regimen, excluding finasteride.

community Seeking advice on my list of haircare tips + product recommendations. Let's help each other :)

in Female 2 upvotes 1 year ago

The conversation discusses hair care tips and product recommendations for hair growth, including red light therapy, The Ordinary hair density serum, Nizoral shampoo, and Minoxidil. It also covers nutrition, stress management, and the importance of blood work for addressing hair loss.

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Learn

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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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Unscored
SMP Specialist
Hairo Fallas
Newark, NJ, United States

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Hairo Fallas