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research 5α-Reductase type 2 gene variant associations with prostate cancer risk, circulating hormone levels and androgenetic alopecia

57 citations , November 2006 in “International Journal of Cancer”

This study found that the SRD5A2 A49T A variant is associated with an increased risk of prostate cancer, lower circulating 3α‐diolG levels, and a decreased risk of baldness.

research Circulating androgen regulation by androgen-catabolizing gut bacteria in male mouse gut

37 citations , February 2023 in “Gut Microbes”

This study found that administering the gut bacterium Thauera sp. strain GDN1 to mice significantly reduced their serum androgen levels, indicating gut bacteria may influence androgen metabolism.

research Circulatory Changes in Alopecia

36 citations , November 1961 in “Archives of Dermatology”

This abstract discusses the uncertain role of the vascular system in hair loss and highlights the unexplained aspects of various types of alopecias; it reports no new research findings.

research Circulating Androgen Concentrations and Risk of Incident Heart Failure in Older Men: The Cardiovascular Health Study

14 citations , October 2022 in “Journal of the American Heart Association”

This study found that among older men, lower calculated free testosterone was significantly associated with a higher risk of heart failure, suggesting a possible role of testosterone deficiency in heart failure incidence.

research William Harvey and the Discovery of the Circulation of the Blood

6 citations , April 2019 in “Circulation Research”

This paper discusses William Harvey's discovery of blood circulation and his role in establishing scientific experimentation in biological research, reporting no new findings.

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Learn

5 / 801 results

learn Rosemary

herb and oil with stimulant, circulatory, anti-inflammatory and antioxidant properties

Rosemary helps circulation, but does that actually regenerate hair? Rosemary may improve circulation but does not directly regenerate hair.

learn vitamin b2

How does Vitamin B2 support scalp circulation and cellular energy production? Vitamin B2 enhances scalp circulation and energy production by supporting cellular metabolism.

learn capsicum

How does capsicum improve scalp circulation and boost growth? Capsaicin dilates blood vessels through TRPV1 activation, so capsicum is expected to raise scalp blood flow, but every human hair-loss study used it inside a multi-ingredient formula — and the strongest one gave it orally, not on the scalp — so its effect on hair by itself is unproven, and it is a known skin irritant.

learn Ginkgo biloba

How does ginkgo biloba improve scalp circulation and does that help with hair regrowth? Ginkgo biloba may improve scalp circulation, but evidence for hair regrowth is inconclusive.

learn Vitis vinifera

Can grape extract help with scalp circulation or hair growth? Grape extract may improve scalp circulation but lacks strong evidence for hair growth.

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Community Join

5 / 347 results

community Am I misunderstanding the medication dosage calculation?

in Product 2 upvotes 1 year ago

The conversation discusses confusion over the dosage calculation of a topical solution containing 0.25% finasteride, 5% minoxidil, and 0.001% tretinoin. The user considers switching to a 0.025% finasteride solution to enhance the effects of tretinoin and minoxidil.

community I’ve been seeing a lot more questionable anecdotal evidence circulating recently….

6 upvotes 3 years ago

Genetics primarily determine hair loss, not lifestyle factors like diet, exercise, or habits. Treatments like finasteride and minoxidil are recommended, but ultimately, happiness should not depend on hair.

community Do you Have Poor Posture? Maybe Contributing to Hair Loss , Esp Diffuse Thinning

in Research/Science 16 upvotes 3 weeks ago

Correcting posture may improve hair health by enhancing blood circulation and reducing side effects like bloating and sexual issues. The user has been using minoxidil and finasteride for two years with underwhelming results and is exploring posture correction as a potential aid.

community Does onion juice actually stop hair fall, or is it just hype?

in Treatment 1 year ago

Onion juice may temporarily improve hair health by boosting blood circulation and providing antibacterial benefits, but it is ineffective against genetic or hormonal hair loss. Proven treatments like minoxidil and finasteride are recommended for more reliable results.

community Any concrete cases of people who were told they couldn't have a transplant because of microneedling?

in Hair Systems 26 upvotes 2 years ago

Microneedling before a hair transplant may harden the scalp and affect blood circulation, potentially impacting graft growth. Some users report successful transplants after microneedling, while others advise caution and consulting with a surgeon.

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