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Vitamin D and its receptor regulate skin functions like cell growth, immunity, hair cycle, and tumor prevention.

Photobiomodulation may help with hair growth and wound healing, but research is inconsistent and needs better quality studies.

SCF and ET-1 together significantly increase skin pigmentation and melanin production.

Laser Doppler velocimetry is a valuable noninvasive tool for skin blood flow research in dermatology.

HGF/SF increases skin melanocytes but doesn't change melanin type or amount.

Latanoprost therapy potentially caused a woman's white hair to darken again.

At-home laser and light devices can safely reduce acne and hair growth when used correctly but are less effective than professional treatments.

The document concludes that skin aging in women can be caused by UV exposure and hormonal changes, and treatments like hormone replacement therapy and various skin therapies can help.

Low vitamin D levels can significantly contribute to hair loss, especially in women aged 35-45. Correcting these levels early may help prevent and treat this condition.

The document concludes that better targeted treatments are needed for wound healing, and single-cell technologies may improve cell-based therapies.

Human skin can make serotonin and melatonin.

Different types of stem cells exist within individual skin layers, and they can adapt to damage, transplantation, or tumor growth. These cells are regulated by their environment and genetic factors. Tumor growth is driven by expanding, genetically altered cells, not long-lived mutant stem cells. There's evidence of cancer stem cells in skin tumors. Other cells, bacteria, and genetic factors help maintain balance and contribute to disease progression. A method for growing mini organs from single cells has been developed.

Vitamin D has potential benefits for cancer prevention, heart health, diabetes, obesity, muscle function, skin health, and immune function, but clinical results are mixed and more research is needed.

Sensitive skin is often caused by nerve fibers and environmental factors, and can be managed with mild skincare and professional advice.

Understanding how melanocyte stem cells work could lead to new treatments for hair graying and skin pigmentation disorders.

A new skin-whitening agent using a peptide from wheat is safe and effective at reducing skin pigmentation.

Patient-derived melanocytes can potentially treat vitiligo by restoring skin pigmentation.

Melatonin protects skin against UV damage by regulating various cellular processes.

Permanent hair loss from cicatricial alopecia is treated by reducing inflammation and managing symptoms, but regrowth in scarred areas is unlikely.

Stressed fibroblasts greatly increase melanin production in hair, skin, and eye cells, mainly due to a growth factor called bFGF.

308-nm excimer light therapy helped over a third of treatment-resistant alopecia universalis patients regrow most of their hair.

Women with early onset androgenetic alopecia have worse lipid profiles.

New treatments for skin and hair disorders in women of color address unique biological differences and include specific acne medications, sunscreens, skin lighteners, and hair care adjustments.

Orobanche rapum extract rejuvenates skin and protects skin bacteria, leading to healthier skin.

HO-1 helps skin health and healing but can worsen melanoma; it's a potential treatment target for skin diseases.

Red light at 627 nm can safely trigger IL-4 release in skin cells, potentially helping treat inflammatory skin conditions.

Conditioned media from human amniotic fluid-derived stem cells helps skin heal and protects against aging from sun exposure.

Combining hair transplantation with microneedling or laser and UV light may help treat tough vitiligo on hands and feet, with microneedling being affordable and easy to learn.

Activating TLR3 may help produce retinoic acid, important for tissue regeneration.

Iron deficiency might contribute to hair loss in women.