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GlossaryDiffusion

movement of molecules from high to low concentration areas

Diffusion is the process by which molecules move from an area of higher concentration to an area of lower concentration until they are evenly distributed. In biological contexts, this is crucial for the transport of nutrients, gases, and waste products across cell membranes, ensuring that cells function properly.

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research Scanning Electrochemical Microscopy of Iontophoretic Transport in Hairless Mouse Skin: Analysis of the Relative Contributions of Diffusion, Migration, and Electroosmosis to Transport in Hair Follicles

50 citations , December 2000 in “Journal of Pharmaceutical Sciences”

Hair follicles significantly enhance electroosmotic transport during iontophoresis.

research Transdermal Finasteride Delivery via Powder-Carrying Microneedles with a Diffusion Enhancer to Treat Androgenetic Alopecia

33 citations , November 2019 in “Journal of Controlled Release”

Microneedles with enhancer effectively promote hair growth and increase hair density.

research Diffusion Properties of Model Compounds in Artificial Sebum

29 citations , May 2007 in “International journal of pharmaceutics”

Different compounds move through artificial sebum at different rates, which can help choose the best ones for targeting hair follicles.

research Kinetics and Equilibrium of Solute Diffusion into Human Hair

8 citations , July 2012 in “Annals of biomedical engineering”

Hair absorbs molecules differently based on their size, charge, and love for water, and less at higher pH; this can help make better hair products.

research Determination of Solute Diffusion Properties in Artificial Sebum

6 citations , May 2019 in “Journal of pharmaceutical sciences”

Diffusion in artificial sebum is mainly influenced by molecular size and is much faster than in skin lipids.

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community One-sided diffuse thinning - what should I do?

in General 62 upvotes 1 day ago

The user is experiencing one-sided diffuse thinning and has been using finasteride and liquid minoxidil for 4-5 years with minimal results. They are considering whether to save for a hair transplant or address scalp sensitivity and irritation first.

community Where to find Botox online

in Treatment 6 upvotes 4 years ago

The user is looking for a place to buy genuine Botox online for scalp use. They are seeking recommendations for reliable sources.

community First post: Baby Hair Regrowing on temples at 39

in Update 13 upvotes 2 months ago

A 39-year-old experienced hair regrowth on his temples after switching from finasteride to topical RU58841 combined with 5% minoxidil. He also underwent stem cell treatment and noticed improvements, attributing the regrowth mainly to the change in treatment.

community He used Dutasteride for 20 years. Interview

in Treatment 112 upvotes 1 year ago

Dutasteride has been used for 20 years with some hair thickness improvement but no dramatic regrowth. The user also experimented with minoxidil, tretinoin, and peptides like BPC 157 for potential benefits in hair density and quality.

community 3 Months - TE/AGA Update - 5% Min, Keto shampoo and supplements

in Progress Pictures 35 upvotes 1 year ago

User shared progress pictures showing increased hair density after 3 months using 5% Minoxidil, Keto shampoo, and supplements. They recently started finasteride for AGA and plan to update in 3 months.

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