Hair Regrowth Blog
Welcome to the HowRegrowHair blog – your trusted resource for science-backed hair growth information, treatment guides, and real success stories.
Latest Articles
Browse our latest research-driven articles below:
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How to Apply Minoxidil Correctly: Step-by-Step Guide
What You Need to Know About apply Minoxidil Correctly: Step-by-Step Guide First Learning apply minoxidil correctly: step-by-step guide is one of the most practical steps you can take to support your hair health process. Many people focus exclusively on treatments like minoxidil and finasteride while overlooking the foundational practices that create the environment for those…
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How to Properly Wash Thin Hair Without Causing Breakage
Why properly Wash Thin Hair Without Causing Breakage Matters for Your Hair Learning properly wash thin hair without causing breakage is one of the most practical steps you can take to support your hair health process. Many people focus exclusively on treatments like minoxidil and finasteride while overlooking the foundational practices that create the environment…
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How to Choose the Right Hairbrush for Your Hair Type
What You Need to Know About choose the Right Hairbrush for Your Hair Type First Learning choose the right hairbrush for your hair type is one of the most practical… Read More →
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How to Create a Weekend Hair Reset Routine
Why create a Weekend Hair Reset Routine Matters for Your Hair Learning create a weekend hair reset routine is one of the most practical steps you can take to support your hair health process. Many people focus exclusively on treatments like minoxidil and finasteride while overlooking the foundational practices that create the environment for those…
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Prostaglandins and Hair: From Latisse to Bimatoprost for Scalp
Mechanism Overview: The Prostaglandin-Hair Connection The connection between prostaglandins and hair growth was discovered serendipitously through the development of bimatoprost (Latisse/Lumigan) for eyelash growth. Bimatoprost is a prostaglandin F2α (PGF2α) analog originally developed as an eye drop for glaucoma, where patients noticed the striking side effect of longer, darker, and thicker eyelashes. This observation led…
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The Science of Scalp Microcirculation and Hair Follicle Nutrition
Mechanism Overview: Blood Supply as a Follicle Growth Limiting Factor The hair follicle is one of the most metabolically demanding mini-organs in the body. During anagen, the follicle extends deep into the subcutaneous fat and the matrix keratinocytes proliferate at a rate that requires enormous supplies of oxygen, glucose, amino acids, and growth factors—all delivered…
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Collagen and Hair: Bioavailability, Amino Acids, and Clinical Evidence
Mechanism Overview: Collagen Supplements and Their Rationale Collagen is the most abundant protein in the human body, comprising approximately 30% of total protein and serving as the primary structural component of the extracellular matrix in skin, bone, tendon, and the perifollicular dermis. The global collagen supplement market exceeded $6 billion in 2025, with a significant…
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Niacinamide (Vitamin B3) and Hair: Circulation and Scalp Benefits
Mechanism Overview: Niacinamide’s Dual Role in Skin and Circulation Niacinamide (nicotinamide) is the amide form of niacin (nicotinic acid, vitamin B3) that has gained significant attention in dermatology for its beneficial effects on skin barrier function, inflammation, and pigmentation. Unlike niacin, niacinamide does not cause the characteristic flushing (vasodilation) that limits niacin’s tolerability, but it…
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The Role of Folic Acid (Vitamin B9) in Cell Division and Hair Growth
Mechanism Overview: Folate as a Cell Division Essential Folic acid (vitamin B9, or folate in its naturally occurring form) is an essential water-soluble vitamin that plays a central role in one-carbon metabolism—the biochemical pathway that provides methyl groups for DNA synthesis, DNA methylation, and amino acid metabolism. The hair follicle matrix contains one of the…
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Epigenetics and Hair: How Lifestyle May Influence Gene Expression
Mechanism Overview: Beyond the DNA Sequence Epigenetics refers to heritable changes in gene expression that do not involve changes to the DNA sequence itself. The three primary epigenetic mechanisms are… Read More →
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The Role of Magnesium in Over 300 Enzymatic Reactions Affecting Hair
Mechanism Overview: Magnesium as a Universal Cofactor Magnesium is the fourth most abundant mineral in the human body and is required as a cofactor for over 300 enzymatic reactions, including many that are directly or indirectly relevant to hair follicle biology. These include ATP-dependent reactions (virtually all enzymes that use ATP require magnesium for ATP-Mg2+…
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Telogen Effluvium: The Biology of Stress-Induced Hair Shedding
Mechanism Overview: When Follicles Prematurely Rest Telogen effluvium (TE) is one of the most common forms of hair loss, second only to androgenetic alopecia. It occurs when a disproportionate number of hair follicles prematurely enter the telogen (resting) phase, resulting in diffuse increased shedding that typically becomes apparent 2-3 months after the triggering event. Unlike…
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