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GlossaryTime-of-Flight Secondary Ion Mass Spectrometry

analytical technique identifying surface composition by measuring ejected ions' flight time

Time-of-Flight Secondary Ion Mass Spectrometry (ToF-SIMS) is an analytical technique used to identify the composition of surfaces at a microscopic level. It works by bombarding a sample with a focused beam of ions, causing secondary ions to be ejected from the surface. These ejected ions are then measured based on their time of flight, which allows for the determination of their mass and, consequently, the identification of the elements and molecules present on the surface. This method is highly sensitive and can provide detailed chemical information about the outermost layers of a material.

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research Mapping penetration of cosmetic compounds into hair fibers using time‐of‐flight secondary ion mass spectrometry (TOF‐SIMS)

3 citations , September 2005 in “International Journal of Cosmetic Science”

Different oils penetrate hair differently; monounsaturated oils like olive oil penetrate better than polyunsaturated oils.

research ToF‐SIMS characterization of the lipid layer on the hair surface. I: the damage caused by chemical treatments and UV radiation

23 citations , May 2010 in “Surface and interface analysis”

Chemical treatments and UV radiation severely damage the lipid layer on hair.

research Analysis of keratin films as screening tools for predicting the efficacy of potential hair dyes

7 citations , June 2019 in “Coloration Technology”

Translucent keratin films are better for testing hair dyes.

research Biomimetics through bioconjugation of 16-methylheptadecanoic acid to damaged hair for hair barrier recovery

4 citations , November 2024 in “Scientific Reports”

16-MHA can restore damaged hair's protective barrier and moisture balance.

research Investigation of human hair using ToF-SIMS: From structural analysis to the identification of cosmetic residues

4 citations , April 2018 in “Journal of vacuum science and technology. B, Nanotechnology & microelectronics”

The conclusion is that a new method can identify cosmetic residues on hair and match them to their products.

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Compressed part of research of theory of androgenic/anabolitic balance. AGA h-responders analytic. Theory of physio-metabolitic method of anti AGA treatment

community Compressed part of research of theory of androgenic/anabolitic balance. AGA h-responders analytic. Theory of physio-metabolitic method of anti AGA treatment

in Research 865 upvotes 1 year ago

The treatment for androgenetic alopecia involves using finasteride and minoxidil with intense exercise and cold exposure to boost metabolism and reduce androgenic effects, potentially leading to hair regrowth. This approach may activate biological pathways for improved hair and overall health.

community Physician here AMA – 30M oral Fin 1-1.25 mg daily

in Update 47 upvotes 4 years ago

Hair loss treatments, specifically the use of finasteride, microneedling and potentially oral minoxidil. People discussed their experiences with finasteride, its effects on sexual behaviors, as well as potential solutions such as tadalafil or using other growth factor signal peptides for hope in curing male pattern baldness.

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