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Caffeine applied to the scalp can protect hair follicles from UV damage.

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

Vitexin Compound 1 may help reduce skin aging caused by UVA light.

An extract from Quercus acutissima bark was found to reduce sebum production and block an enzyme linked to acne.

Cancer rates are increasing in developed countries, with estrogen, aging, low vitamin D3, and HPV infection as common causes.

UVB radiation changes the chemical makeup and dries out human hair but doesn't alter its appearance or texture.

Fullerenes show potential in skin care but need more safety research.

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

PDO, PLLA, and PCL threads increase collagen in ageing skin but don't change MMP1 gene expression.

Photodynamic therapy is the preferred treatment for skin precancer due to its effectiveness and safety.

α-Mangostin can naturally lighten skin by reducing melanin.

Different species and human skin models vary in their skin enzyme activities, with pig skin and some models closely matching human skin, useful for safety assessments and understanding the skin's protective roles.

Anthralin is effective for psoriasis and alopecia with minimal systemic side effects but can irritate the skin.

The Polish Dermatological Society recommends personalized treatment for cutaneous lupus, including lifestyle changes, medications, and monitoring, with specific drugs for severe cases.

Sun-exposed skin shows different cell activity and gene expression, suggesting targets to prevent skin aging and cancer.

Understanding how cells die in the skin is important for treating skin diseases and preventing hair loss.

Segmental Vitiligo is a stable, early-onset form of vitiligo that responds well to early treatment and is ideal for repigmentation studies.

Chitin and chitosan are useful in cosmetics for oral care, haircare, and skincare, including UV protection and strength improvement.

Oestrogens help maintain healthy skin, heal wounds, and may protect against skin aging and cancer.

Lamivudine might reverse hair graying and needs more research for potential treatments.

The new lab-grown skin model is good for testing sunscreen's protection against DNA damage from UV light.

The environment around melanocyte stem cells is key for hair regeneration and color, with certain injuries affecting hair color and potential treatments for pigmentation disorders.

Liposomes could improve how skin care products work but are costly and not very stable.

Use some skin medications with caution during pregnancy; avoid strong steroids, certain eczema treatments, and systemic retinoids, but many topical treatments and nasal sprays are safe.

Visible light can damage skin and most sunscreens don't block it well; more research is needed on its effects and protection methods.

Coffee silverskin may be a beneficial and safe ingredient for cosmetics, offering hydration, firmness, and potential hair growth benefits.

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

Mesenchymal stem cells show potential for skin healing and anti-aging, but more research is needed for safe use, especially regarding stem cells from induced pluripotent sources.

Hair growth and health are influenced by stress and hormones.

Fetal skin cells from a cell bank heal wounds faster and with less scarring than adult cells.