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GlossaryAnagen Phase

active period of hair growth in the hair cycle

The Anagen Phase, also known as the growth phase, is the active period of hair growth in the hair cycle. During this phase, hair follicles are actively producing new hair cells, leading to the elongation of the hair shaft. This phase can last anywhere from 2 to 7 years, depending on genetic factors, and determines the maximum length of the hair.

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Research

5 / 1000+ results

research A Comparison of Methods of Anagen Synchronization in the Adult Rat Model of Chemotherapy-Induced Alopecia

January 2015 in “Journal of clinical and investigative dermatology”

Clipping is the best method to prepare rats for studying hair loss from chemotherapy because it causes less skin damage and effectively gets hair to the right growth phase.

An Umbilical Cord Blood-Derived Exosome Product Stimulates Hair Growth Through Laminin V and Collagen XVII: An Ex Vivo Study

research A umbilical cord blood-derived exosome product simulates hair growth through laminin V and collagen XVII: an ex vivo study

November 2025 in “Archives of Dermatological Research”

Limelight (CB-EVs) safely promotes hair growth.

research [Effect of tacrolimus on the growth cycle of murine hair follicles].

1 citations , April 2007 in “PubMed”

Tacrolimus helps mice grow hair by activating hair follicles.

A Spermidine-Based Nutritional Supplement Prolongs the Anagen Phase of Hair Follicles in Humans: A Randomized, Placebo-Controlled, Double-Blind Study

research A spermidine-based nutritional supplement prolongs the anagen phase of hair follicles in humans: a randomized, placebo-controlled, double-blind study

8 citations , October 2017 in “Dermatology practical & conceptual”

A spermidine-based supplement may help hair grow longer by keeping it in the growth phase.

Oral Spermidine Supplementation Prolongs Hair Follicle Anagen Phase with Sustained Effects: A Randomized, Double-Blind, Placebo-Controlled Trial

research Oral Spermidine Supplementation Prolongs Hair Follicle Anagen Phase with Sustained Effects: A Randomized, Double-Blind, Placebo-Controlled Trial

January 2025 in “MEDS Public Health and Preventive Medicine”

Spermidine supplements can help extend the hair growth phase and may be useful for treating hair loss.

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Community Join

5 / 528 results

community Thoughts on this topical? Has a combination going on but are they really heavy hitters

in Treatment 4 upvotes 6 months ago

Follicium XR™ is a topical treatment for hair loss containing RU58841, AHK-Cu, GHK-Cu Peptide, caffeine, D-Biotin, methylene blue, keratin, and spermidine. RU58841 is considered the most effective ingredient, but concerns exist about its stability in water.

community I interviewed Kintor: GT20029 Clinical Trial Pictures. As well as KX826.

in Research/Science 158 upvotes 1 year ago

GT20029 and KX826 are promising hair loss treatments, with GT20029 increasing hair count and KX826 showing significant results. KX826 may be a good alternative for those who can't use finasteride or dutasteride, though results vary.

community Aggressive Hair Loss from 18 – 22: Beginning my Holy Crusade Against MPB

in Treatment 3 years ago

A user's experience with aggressive hair loss from age 18-22, and possible treatments to combat this such as Dut, oral minoxidil, and finasteride.

community 25 months. Dutasteride, RU58841, Minoxidil, Microneedling, Nizoral, T/GEL, fixing vitamin D levels

in Progress Pictures 2242 upvotes 4 years ago

User "manlycoffee" shares 25-month progress using Dutasteride, RU58841, Minoxidil, Microneedling, Nizoral, T/GEL, and fixing vitamin D levels for hair loss. Users discuss sources, experiences, and side effects of treatments.

community 30-Min Dermatology Visit – Best Questions to Ask About Balding? ( 175$ )

in Treatment 6 upvotes 1 year ago

The conversation discusses hair loss treatments, focusing on finasteride, minoxidil, and other options like PRP and ketoconazole. It highlights the importance of asking specific questions during a dermatology visit to determine the cause of hair loss and appropriate treatments.

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Learn

1 / 801 results

learn Osteopontin

signaling protein that, when suppressed, may grow hair by reducing inflammation and stem cell loss

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Clinics

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