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Human hair growth involves active, resting, and intermediate phases, and examining plucked hairs can teach students about hair biology and diseases.

The telogen phase of hair growth is active and important for preparing hair follicles for regeneration, not just a resting stage.

Hair color production is closely linked to the active growth phase of hair in mice and may also influence hair growth itself.

Two specific hair keratin genes are active during hair growth and decline as hair transitions to rest.

Applying a DNA vaccine to skin with active hair growth boosts immune response and protection against anthrax in mice.

Researchers found a new gene, hacl-1, that is active in mouse hair follicles during hair growth and may be important for hair biology.

Olive leaf compound oleuropein helps grow hair in mice.

Melatonin treatment increases wool production and improves fiber quality in angora rabbits.

Platelet-Rich Plasma (PRP), a protein-rich extract from a patient's blood, shows promise in improving hair density, thickness, and quality, but the best method of use and number of treatments needed for noticeable results are still unclear.

Nebivolol cream may be a promising hair loss treatment by improving blood flow and nourishing hair follicles.

Lymphatic vessels help hair follicles regenerate by interacting with stem cells.

Scalp pain is a common symptom in people with active hair loss from telogen effluvium.

Blocking the FGF5 gene in sheep leads to more fine wool and active hair follicles due to changes in certain cell signaling pathways.

As people get older, they have less active hair growth, but women have thicker hair than men and respond better to hair loss treatments.

Thymic stromal lymphopoietin (TSLP) promotes hair growth by stimulating specific skin cells.

Ginseng and its compounds may help hair growth and prevent hair loss, but more human trials are needed to confirm this.

Tetracycline can stick to hair follicles and potentially cause hair loss.

Male hair loss is caused by inactive hair follicle stem cells.

Hair color is determined by melanin and can be affected by genetic conditions like albinism.

Shikonin, a small molecule, speeds up burn wound healing and hair growth by activating the PI3K/Akt pathway.

Noggin is necessary to start the hair growth phase in skin after birth.

Hair color production in mice is closely linked to the hair growth phase and may also influence hair growth itself.

The dermal papilla is crucial for hair growth and health, and understanding it could lead to new hair loss treatments.

Tiny particles from stem cells help activate hair growth cells and encourage hair growth in mice without being toxic.

The human hair follicle can store topical compounds and be targeted for drug delivery with minimal side effects.

The document concludes that minoxidil and finasteride are proven for hair growth, herbal remedies show promise, but more research is needed to confirm their effectiveness.

The conclusion is that recognizing hair growth cycles can improve the precision of dietary and health assessments from hair analysis.

Hormones and their receptors, especially androgens, play a key role in hair growth and disorders like baldness.

Hair pain is more common in women with hair loss, but it's not linked to the cause or severity of hair loss.

Geranium sibiricum extract helps hair grow and is more effective than minoxidil but can be toxic in high concentrations.