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    GlossaryCatagen Phase (Transitional Phase)

    hair growth stops and follicles shrink, lasting about 2-3 weeks

    The Catagen Phase, also known as the Transitional Phase, is a short period in the hair growth cycle that lasts about 2-3 weeks. During this phase, hair growth stops, and the hair follicle shrinks and detaches from the dermal papilla, effectively transitioning the hair from the growth phase (Anagen) to the resting phase (Telogen). This phase is crucial for the renewal of hair follicles and the overall hair growth process.

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      learn Stemoxydine

      chemical from L'Oreal that encourages hair to enter growth phase

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      nucleoside used for hair regrowth stimulant properties

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      Microscopic delivery system that sends growth-promoting signals to hair follicles

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      an anticonvulsant repurposed for hair loss via histone inhibition

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      research The Hair Cycle And Its Regulation

      38 citations , October 1988 in “Clinics in Dermatology”
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