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GlossaryCuticle (cuticle layers)

outermost layer of a hair strand, protecting inner layers

The cuticle is the outermost layer of a hair strand, composed of overlapping, scale-like cells that protect the inner layers of the hair shaft. It acts as a barrier against environmental damage and helps maintain the hair's moisture balance, contributing to its overall strength and shine.

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Research

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research Structure and Expression of Genes for a Class of Cysteine-Rich Proteins of the Cuticle Layers of Differentiating Wool and Hair Follicles

67 citations, December 1990 in “The journal of cell biology/The Journal of cell biology”

Researchers found genes for cysteine-rich proteins that form the protective layer of hair in humans and sheep.

research Mechanism of Cuticle Hole Development in Human Hair Due to UV Radiation Exposure

8 citations, March 2018 in “Cosmetics”

UV radiation damages hair by creating holes and peeling cuticle layers.

research A Highly Resistant Structure Between Cuticle and Cortex of Human Hair

10 citations, November 2016 in “International Journal of Cosmetic Science”

A tough membrane between the outer and inner layers of human hair protects it from damage.

research A Highly Resistant Structure Between the Cuticle and the Cortex of Human Hair. II. CARB, a Penetration Barrier

6 citations, December 2018 in “International Journal of Cosmetic Science”

CARB is a strong barrier in human hair that prevents dye penetration.

research Influence of Oxidative and Reductive Treatment on Human Hair: Analysis of Hair Damage

20 citations, January 2003 in “Journal of oleo science”

Chemical treatments and daily stresses damage hair, especially the cuticle layer.

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community DIY treatment... Shedding completely stopped after 1.5 yrs

in Treatment 249 upvotes 2 years ago

Vitamin C mixed with shampoo stopped shedding and promoted hair regrowth after 1.5 years. Both the person and their wife experienced significant hair loss reduction with this method.

community My Experience and a Discourse on "DUPA"

in Treatment 9 upvotes 6 months ago

The user discusses their hair loss experience, exploring various hypotheses including thyroid levels, vitamin D, DHEA, nutritional deficiency, diabetes, seborrheic dermatitis, lack of nutrition to hair follicles, chronic inflammation, female pattern hair loss causes, cortisol, and prolactin levels. They are currently using finasteride, beta-sitosterol, and have tried topical dutasteride and microneedling therapy.

community Please stop looking for a natural way to stop your hairloss

in Chat 247 upvotes 2 years ago

There is no natural way to stop hair loss; pharmaceuticals like minoxidil, finasteride, and RU58841 are the only effective treatments. Some users report success with minoxidil and microneedling, while others discuss the side effects of finasteride.

community Scalp health/dandruff

6 upvotes 5 years ago

User is experiencing a very dry scalp with thick white flakes from using liquid minoxidil twice daily for a year. They use Nizoral every 10 days and are seeking advice for a healthier scalp, with a suggestion to use finasteride instead.

community Amount of hairfall every day after 2 years on fin 1.5 years RU and 10 months oral min…

in Update 21 upvotes 1 year ago

The user is experiencing significant hair shedding despite 2 years on finasteride, 1.5 years on RU58841, and 10 months on oral minoxidil, and is frustrated with the ongoing issue. Another user shares a similar experience of losing a lot of hair daily for the last 3 years.

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