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research Action of Thioglycolic Acid and L-Cysteine to Disulfide Cross-Links in Hair Fibers during Permanent Waving Treatment

18 citations , January 2008 in “Sen'i Gakkaishi”

This study observed that repeated perm treatments decrease disulfide bonds in hair due to their conversion largely into cysteic acid, affecting the waving efficiency depending on the reduction agent used.

research The role of disulfide bond formation in the structural transition observed in the intermediate filaments of developing hair

39 citations , June 2012 in “Journal of Structural Biology”

Disulfide bonds are crucial for hair structure during keratinization.

research Effect of Disulfide Bonds in Human Hair Fibers on the Melting Behavior of Their Crystalline Structure

1 citations , January 2009 in “Journal of S C C J”

This study investigated the effect of peracetic acid treatment on hair fiber structure and found that disulfide bond oxidation altered thermal properties while preserving the α-crystal structure, suggesting different stabilizing interactions in hair fibers.

research Effect of disulfide bonds in human hair fibers on the melting behavior of their crystalline structure

March 2010 in “International Journal of Cosmetic Science”

This study found that oxidative treatment with peracetic acid dissociates some disulfide bonds in human hair fibers while maintaining the crystalline structure, suggesting different mechanisms stabilize different regions of intermediate filaments.

research Cysteine and Glutamine level in hair shaft fractures patients

1 citations , July 2024 in “International Journal of Dermatology Venereology and Leprosy Sciences”

This review discusses various environmental and chemical factors that contribute to hair shaft disorders, such as fractures, and highlights the potential roles of cysteine and glutamine in hair health, but reports no new results.

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community Losing ground after 14 months of fin use and 11 months of min

in Finasteride/Dutasteride 53 upvotes 4 years ago

A 24-year-old person who is worried about their hair loss after 14 months of taking finasteride and 11 months of minoxidil. Replies to the post suggested sticking with their current regimen, that shedding from one part may not be telogen effluvium, and that shedding is normal with these drugs and they should evaluate in two to three months.

community I'm quitting finasteride after almost 3 years of daily use

in Finasteride/Dutasteride 166 upvotes 11 months ago

A 23-year-old stopped using finasteride due to sexual side effects after three years. The discussion covers experiences with finasteride, dutasteride, and other treatments, noting varied side effects and effectiveness.

community Any clinical study on cysteine alone for hair loss?

6 upvotes 1 year ago

The conversation discusses the lack of clinical studies on cysteine alone for hair loss, with the original poster already using medications like Minoxidil and finasteride. Suggestions include trying 2ddr as a growth stimulant, though concerns about side effects like gas are mentioned.

community Efficacy and Tolerability of N-Acetyl-Cysteine for Treatment of The Early-onset Androgenetic Alopecia in Men

26 upvotes 4 years ago

N-Acetyl-Cysteine (NAC) was found to improve hair parameters in men with early-onset androgenetic alopecia, showing increased terminal hair count and decreased vellus hair count, with good tolerability. NAC, used alone or with minoxidil, may help due to its antioxidant properties, though its effectiveness can vary among individuals.

community Clinical Trial: N-Acetyl-Cysteine for Treatment of AGA in Men

5 upvotes 5 years ago

N-Acetyl-Cysteine (NAC) is being explored for treating hair loss, but users report mixed results. Some also mention using Quercetin and Resveratrol without significant hair improvement.

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Learn

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learn L-cysteine

What is L-cysteine, and why is it often included in hair growth supplements? L-cysteine supports hair growth by strengthening keratin, the main protein in hair.
Can taking L-cysteine orally really strengthen hair from the inside? L-cysteine may help strengthen hair if there's a deficiency, but results vary.
Can topical products with L-cysteine repair damaged hair or prevent breakage? Topical L-cysteine cannot effectively repair damaged hair or prevent breakage.
All 5 questions on L-cysteine →

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