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GlossaryBulk Modulus

measure of a material's resistance to uniform compression

The Bulk Modulus, also known as the Modulus of Bulk Elasticity, is a measure of a material's resistance to uniform compression. It quantifies how much a material will compress under a given amount of pressure. For example, a high Bulk Modulus indicates that the material is incompressible and very stiff, like steel, whereas a low Bulk Modulus means the material is more compressible, like rubber.

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research Ruxolitinib for the Treatment of Severe Alopecia Areata

37 citations , September 2018 in “Journal of the American Academy of Dermatology”

Ruxolitinib can help regrow hair in severe alopecia areata.

research Volume Changes During Water Binding to Hair Fibers

3 citations , August 1980 in “Acs Symposium Series”

Hair increases in size when it absorbs water, and treatments like bleaching affect how much water it can take in.

research A Mechanical Model of Overnight Hair Curling

September 2015 in “The European physical journal. E, Soft matter and biological physics/The European physical journal. E, Soft matter”

Longer time setting curls overnight leads to better curl retention.

research Poly-D,L-Lactic Acid Filler Increases Hair Growth by Modulating Hair Follicular Stem Cells in Aged Skin

December 2025 in “Cells”

Poly-D,L-lactic acid boosts hair growth in aged skin by activating hair follicle stem cells.

research Insights on the Mechanical Behavior of Keratin Fibrils

13 citations , May 2016 in “International journal of biological macromolecules”

Keratin's mechanical properties are influenced by hydrogen bonds and secondary structure, and can be improved with the SPD-2 peptide.

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community Pyrilutamide bulk powder purchasing

in Product 2 upvotes 9 months ago

Pyrilutamide is being used effectively for hair loss with no side effects, and the user is seeking a cheaper bulk supplier. Users discuss the difficulty of finding affordable, trustworthy sources, with some suggesting potential suppliers.

community Keratin fibers vs. Gossypium Herbaceum Hair fibers

in Product 1 upvotes 1 year ago

The conversation is about comparing keratin hair fibers to Gossypium Herbaceum hair fibers for diffuse hair loss. The user prefers keratin fibers for their durability and is seeking a bulk purchase option.

community Anyone used peptides from bulknaturals?

in Microneedling 1 upvotes 6 months ago

The conversation discusses using GHK-Cu copper peptide from Bulk Naturals for hair loss, comparing its price and quality to Peptide Sciences. Concerns about the product's legitimacy are mentioned, but COA documents are available.

community Starting Bimatoprost! Hair time

in Product 36 upvotes 10 months ago

The conversation is about using Bimatoprost for hair growth, with concerns about potential side effects like eye color change and fat atrophy. Users discuss combining it with other treatments like Minoxidil and Finasteride, and sourcing Bimatoprost in bulk.

community How to make topical fin with stemoxydine

in Product 1 upvotes 2 years ago

The conversation is about making topical finasteride with stemoxydine, including questions on dosages, bulk preparation, and storage.

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