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GlossaryAfrican hair (coily hair)

characterized by tight curls or coils, often type 4

African hair, also known as Afro-textured hair, is characterized by its tight curls or coils, which can range from a soft, fine texture to a coarse, wiry one. This hair type, often referred to as type 4 hair in the hair typing system, tends to be more prone to dryness and shrinkage due to its structure, which makes it more challenging for natural oils to travel down the hair shaft.

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research A New Universal Follicular Unit Excision Classification System for Hair Transplantation Difficulty and Patient Outcome

4 citations, June 2022 in “Clinical, cosmetic and investigational dermatology”

The new SFS Scale predicts hair transplant difficulty using hair and skin types, with thick skin and coily hair being hardest to work with.

research Minority Hair Tax: Pricing Bias in Haircare Products

September 2023 in “Journal of the American Academy of Dermatology”

Curly/coily hair products are more expensive than straight hair products.

research Curly Hair Follicle Is Sculpted by a Contracted Arrector Pili Muscle: A Hypothesis with Treatment Implications

January 2024 in “Indian Journal of Pharmaceutical Sciences”

Relaxing certain muscles might straighten curly hair.

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

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

April 2023

A new system for classifying curly hair types using precise measurements can improve hair care products and cultural inclusion.

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

November 2022

New methods to classify curly hair types were developed based on shape and strength.

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community 3 years of 1 mg of Finasteride daily

in Progress Pictures 867 upvotes 4 years ago

A user who was able to regrow hair loss with 1mg of finasteride daily over 3 years, the effectiveness of finasteride for different races, and potential side effects associated with taking finasteride.

community Study: Peppermint oil more effective than minoxidil, thoughts?

in Research/Science 14 upvotes 1 year ago

The conversation discusses a claim that peppermint oil is more effective than minoxidil for hair loss, with one user mentioning using a mix of peppermint and rosemary oils as a treatment. Some users are skeptical, while others show interest in the potential of peppermint oil.

community Hair Loss transformation Min/Fin/DermaStamp Age 23 M.

in Progress Pictures 127 upvotes 9 months ago

A user shared their hair loss transformation using Minoxidil, Finasteride, and DermaStamp, showing significant improvement over time. They noted quitting DermaStamp due to laziness and attributed past poor results to heavy smoking.

community 3 months on fin/min/micro needling/scalp massages

in Progress Pictures 236 upvotes 3 years ago

User experienced significant hair growth in 3 months using finasteride, minoxidil, microneedling, and scalp massages. Others questioned the authenticity of the results due to the rapid progress.

community Been fighting hair loss the last 5 years

in Progress Pictures 338 upvotes 5 months ago

The user has been successfully managing hair loss for five years using oral minoxidil and finasteride. They experienced significant improvement and plan to continue the treatment without breaks to maintain results.

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