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GlossaryPhotoaging

premature skin aging caused by repeated UV radiation exposure

Photoaging, also known as sun-induced aging, refers to the premature aging of the skin caused by repeated exposure to ultraviolet (UV) radiation from the sun or artificial sources like tanning beds. This process leads to changes such as wrinkles, loss of skin elasticity, pigmentation changes, and a rough texture, primarily due to the breakdown of collagen and the formation of abnormal elastin.

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research Photoaging of Hair Fiber and Photoprotection

18 citations, January 1994 in “Skin pharmacology and physiology”

Sunlight damages hair, causing cuticle loss, protein changes, and discoloration.

research The Hair Eclipse Phenomenon: Sharpening the Focus on the Hair Cycle Chronobiology

14 citations, December 2003 in “International Journal of Cosmetic Science”

Hair growth and shedding are linked and can be disrupted, causing a delay known as the hair eclipse phenomenon, which is common in certain hair conditions and could lead to new treatments.

research Quantitative Morphometric Analysis of Intrinsic and Extrinsic Skin Ageing in Individuals with Fitzpatrick Skin Types II–III

4 citations, January 2023 in “Experimental dermatology”

Skin thickness decreases and structural changes occur with both ageing and sun exposure in certain skin types.

research Book Reviews

August 1996 in “Australasian Journal of Dermatology”

The document concludes that "Photodamage" and "Photoimmunology" are valuable resources, while "Pediatric Dermatopathology" and "Hair and Scalp Disorders" have limitations.

research Adverse Effects of Isotretinoin: A Retrospective Review of 1743 Patients

121 citations, June 2010 in “Australasian Journal of Dermatology”

Most people on isotretinoin had chapped lips, but only a few stopped the medicine due to side effects.

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community Trying to regrow crown been on Fin for 4.5 years

in Finasteride/Dutasteride 6 upvotes 7 months ago

The user has been on finasteride for 4.5 years and minoxidil for 10 years, maintaining hair but not regrowing much on the crown and temples. They are considering using a dermastamp more frequently and possibly trying RU58841, but are hesitant about dutasteride due to concerns about side effects and DHT suppression.

community Why do I see so many people here recommend microneedling?

in Microneedling 105 upvotes 1 year ago

The efficacy of microneedling for hair regrowth as either a stand-alone therapy or adjunct to Minoxidil, and whether Tretinoin is a safer and more effective option. Replies include personal accounts from users who have had success with microneedling in combination with minoxidil and peptide serums, as well as considerations of technique, depth, and potential scarring.