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Latanoprost can make eyelashes longer, thicker, and darker.

Tight junctions are key for skin protection and controlling what gets absorbed or passes through the skin.

Lichen planus is a skin condition that can resolve on its own, is linked to hepatitis C, and increases the risk of skin cancer.

Caffeine in cosmetics may reduce cellulite, protect skin, and stimulate hair growth, but more research is needed on its use and effects.

Estrogen therapy can reduce skin aging but has cancer risks.

Keratinocytes help heal skin wounds by interacting with immune cells and producing substances that kill pathogens.

Liposomes improve drug delivery and reduce skin irritation in dermatology.

The enzyme 25 Hydroxyvitamin D 1 α-Hydroxylase is essential for healthy skin and recovery after skin damage.

Vitamin D is important for skin health and may affect conditions like psoriasis and hair loss, but more research is needed to understand its role fully.

Turmeric may have benefits for skin health, but more research is needed to confirm its effectiveness.

Some vitamins and minerals like vitamin D and iron can help with certain types of hair loss, but more research is needed for others.

Different types of stem cells and their environments are key to skin repair and maintenance.

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.

Damage to skin releases dsRNA, which activates TLR3 and helps in skin and hair follicle regeneration.

Coal tar shampoos, salicylic acid, and topical corticosteroids are effective for scalp psoriasis, with Vitamin D3 analogues also showing benefits; severe cases may require stronger medication with more risks.

Low doses of some substances can be beneficial, while high doses can be harmful or toxic.

Oxidative stress contributes to hair graying and loss as we age.

Janus kinase inhibitors are promising treatments for autoimmune skin diseases like eczema and psoriasis.

TRP channels in the skin are important for sensation and health, and targeting them could help treat skin disorders.

Hair follicles produce and respond to melatonin, affecting hair growth and sensitivity to estrogen.

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

Estrogens help reduce skin aging, and SERMs might offer similar benefits without the risks of hormone therapy.

Hair grows faster in the morning and is more vulnerable to damage from radiation due to the internal clock in hair follicle cells.

Smoking harms the skin, causing early aging and increasing cancer risk, but stopping smoking can improve skin health.

Microneedling is promising for treating various skin issues but needs more research to confirm its effectiveness and safety.

Wrinkles form due to structural skin changes and vary in type and treatment response.

Oral retinoids are effective for various skin conditions but have side effects and should not be used during pregnancy.

Recombinant cytokine therapy can cause skin reactions ranging from mild to severe.

Olive oil compounds may help prevent cancer in animals, but human results are mixed.

Selenoproteins are crucial for healthy skin and hair.